Accedi

Bibliografie tematiche / Iridium-catalyzed borylation / Articoli di riviste

Segui questo link per vedere altri tipi di pubblicazioni sul tema: Iridium-catalyzed borylation.

Articoli di riviste sul tema "Iridium-catalyzed borylation"

Autore: Grafiati

Pubblicato: 7 settembre 2024

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Vedi i top-50 articoli di riviste per l'attività di ricerca sul tema "Iridium-catalyzed borylation".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Vedi gli articoli di riviste di molte aree scientifiche e compila una bibliografia corretta.

1

Shi, Yongjia, Qian Gao e Senmiao Xu. "Iridium-Catalyzed Asymmetric C–H Borylation Enabled by Chiral Bidentate Boryl Ligands". Synlett 30, n. 19 (28 ottobre 2019): 2107–12. http://dx.doi.org/10.1055/s-0039-1690225.

Testo completo

Abstract (sommario):

Asymmetric synthesis of optically pure organoboron compounds is a topic that has received a number of attentions owing to their particular importance in synthetic chemistry and drug discovery. We herein highlight recent advances in the iridium-catalyzed C–H borylation of diarylmethylamines and cyclopropanes enabled by chiral bidentate boryl ligands.1 Introduction2 Ir-Catalyzed Asymmetric C(sp2)–H Borylation of Diarylmethylamines3 Ir-Catalyzed Enantioselective C(sp3)–H Borylation of Cyclopropanes4 Conclusion

Gli stili APA, Harvard, Vancouver, ISO e altri

2

Chattopadhyay, Buddhadeb, Mirja Md Mahamudul Hassan, Md Emdadul Hoque, Sayan Dey, Saikat Guria e Brindaban Roy. "Iridium-Catalyzed Site-Selective Borylation of 8-Arylquinolines". Synthesis 53, n. 18 (11 maggio 2021): 3333–42. http://dx.doi.org/10.1055/a-1506-3884.

Testo completo

Abstract (sommario):

AbstractWe report a convenient method for the highly site-selective borylation of 8-arylquinoline. The reaction proceeds smoothly in the presence of a catalytic amount of [Ir(OMe)(cod)]2 and 2-phenylpyridine derived ligand using bis(pinacolato)diborane as the borylating agent. The reactions occur with high selectivity with many functional groups, providing a series of borylated 8-aryl quinolines with good to excellent yield and excellent selectivity. The borylated compounds formed in this method can be transformed into various important synthons by using known transformations.

Gli stili APA, Harvard, Vancouver, ISO e altri

3

Chotana, Ghayoor, Soneela Asghar, Tayyaba Shahzadi, Meshari Alazmi, Xin Gao, Abdul-Hamid Emwas, Rahman Saleem e Farhat Batool. "Iridium-Catalyzed Regioselective Borylation of Substituted Biaryls". Synthesis 50, n. 11 (28 marzo 2018): 2211–20. http://dx.doi.org/10.1055/s-0036-1591968.

Testo completo

Abstract (sommario):

Biarylboronic esters are generally prepared by directed ortho-metalation or by Miyaura borylation and hence rely on the presence of a directing group or pre-functionalization. In this paper, the preparation of biarylboronic esters by direct C–H borylation of biaryl substrates is reported. Sterically governed regioselectivities were observed in the borylation of appropriately substituted biaryls by using [Ir(OMe)(COD)]2 precatalyst and di-tert-butylbipyridyl ligand. The resulting biarylboronic esters were isolated in 38–98% yields. The synthesized biarylboronic esters were further successfully employed in C–O, C–Br, and C–C coupling reactions.

Gli stili APA, Harvard, Vancouver, ISO e altri

4

Pan, Zilong, Luhua Liu, Senmiao Xu e Zhenlu Shen. "Ligand-free iridium-catalyzed regioselective C–H borylation of indoles". RSC Advances 11, n. 10 (2021): 5487–90. http://dx.doi.org/10.1039/d0ra10211c.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

5

Eastabrook, Andrew S., e Jonathan Sperry. "Iridium-Catalyzed Triborylation of 3-Substituted Indoles". Australian Journal of Chemistry 68, n. 12 (2015): 1810. http://dx.doi.org/10.1071/ch15393.

Testo completo

Abstract (sommario):

Readily available 3-substituted indoles undergo a one-pot iridium-catalyzed triborylation at the C2, C5, and C7 sites. 1H NMR analysis indicates borylation at C2 and C7 occurs first (no monoborylated product is observed), with the third borylation occurring as a separate, distinct step that is sterically directed to C5 by a combination of the substituent at C3 and the boronate at C7. The resulting tetrasubstituted indoles possess a substitution pattern that is cumbersome to prepare using existing methods.

Gli stili APA, Harvard, Vancouver, ISO e altri

6

Da Ros, Sara, Anthony Linden, Kim K. Baldridge e Jay S. Siegel. "Boronic esters of corannulene: potential building blocks toward icosahedral supramolecules". Organic Chemistry Frontiers 2, n. 6 (2015): 626–33. http://dx.doi.org/10.1039/c5qo00009b.

Testo completo

Abstract (sommario):

Direct iridium-catalyzed multi-borylation provides a valuable tool for the symmetric functionalization of various polycyclic aromatic hydrocarbons, inter alia, regular fivefold derivatization of corannulene.

Gli stili APA, Harvard, Vancouver, ISO e altri

7

Hitosugi, Shunpei, Yuta Nakamura, Taisuke Matsuno, Waka Nakanishi e Hiroyuki Isobe. "Iridium-catalyzed direct borylation of phenacenes". Tetrahedron Letters 53, n. 9 (febbraio 2012): 1180–82. http://dx.doi.org/10.1016/j.tetlet.2011.12.106.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

8

Chotana, Ghayoor A., Jose R. Montero Bastidas, Susanne L. Miller, Milton R. Smith e Robert E. Maleczka. "One-Pot Iridium Catalyzed C–H Borylation/Sonogashira Cross-Coupling: Access to Borylated Aryl Alkynes". Molecules 25, n. 7 (10 aprile 2020): 1754. http://dx.doi.org/10.3390/molecules25071754.

Testo completo

Abstract (sommario):

Borylated aryl alkynes have been synthesized via one-pot iridium catalyzed C–H borylation (CHB)/Sonogashira cross-coupling of aryl bromides. Direct borylation of aryl alkynes encountered problems related to the reactivity of the alkyne under CHB conditions. However, tolerance of aryl bromides to CHB made possible a subsequent Sonogashira cross-coupling to access the desired borylated aryl alkynes.

Gli stili APA, Harvard, Vancouver, ISO e altri

9

Ishiyama, Tatsuo, e Norio Miyaura. "Iridium-catalyzed borylation of arenes and heteroarenes via C-H activation". Pure and Applied Chemistry 78, n. 7 (1 gennaio 2006): 1369–75. http://dx.doi.org/10.1351/pac200678071369.

Testo completo

Abstract (sommario):

Direct C-H borylation of aromatic compounds catalyzed by a transition-metal complex was studied as an economical protocol for the synthesis of aromatic boron derivatives. Iridium complexes generated from Ir(I) precursors and 2,2'-bipyridine ligands efficiently catalyzed the reactions of arenes and heteroarenes with bis(pinacolato)diboron or pinacolborane to produce a variety of aryl- and heteroarylboron compounds. The catalytic cycle involves the formation of a tris(boryl)iridium(III) species and its oxidative addition to an aromatic C-H bond.

Gli stili APA, Harvard, Vancouver, ISO e altri

10

Wang, Yongpeng, Mengzhu Liu, Yang Sun, Yingshuang Shang, Bo Jiang, Haibo Zhang e Zhenhua Jiang. "Aluminium borate whiskers grafted with boric acid containing poly(ether ether ketone) as a reinforcing agent for the preparation of poly(ether ether ketone) composites". RSC Advances 5, n. 122 (2015): 100856–64. http://dx.doi.org/10.1039/c5ra19635c.

Testo completo

Abstract (sommario):

A new soluble boron-containing poly(ether ether ketone) (B-PEEK) was synthesized through iridium-catalyzed C–H borylation and grafted on the surface of aluminum borate whiskers as the coupling agent between the whiskers and PEEK matrix.

Gli stili APA, Harvard, Vancouver, ISO e altri

11

Liskey, Carl W., Xuebin Liao e John F. Hartwig. "Cyanation of Arenes via Iridium-Catalyzed Borylation". Journal of the American Chemical Society 132, n. 33 (25 agosto 2010): 11389–91. http://dx.doi.org/10.1021/ja104442v.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

12

Sadler, Scott A., Hazmi Tajuddin, Ibraheem A. I. Mkhalid, Andrei S. Batsanov, David Albesa-Jove, Man Sing Cheung, Aoife C. Maxwell et al. "Iridium-catalyzed C–H borylation of pyridines". Organic & Biomolecular Chemistry 12, n. 37 (1 agosto 2014): 7318. http://dx.doi.org/10.1039/c4ob01565g.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

13

Liskey, Carl W., e John F. Hartwig. "Iridium-Catalyzed C–H Borylation of Cyclopropanes". Journal of the American Chemical Society 135, n. 9 (21 febbraio 2013): 3375–78. http://dx.doi.org/10.1021/ja400103p.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

14

Huang, Genping, Marcin Kalek, Rong-Zhen Liao e Fahmi Himo. "Mechanism, reactivity, and selectivity of the iridium-catalyzed C(sp3)–H borylation of chlorosilanes". Chemical Science 6, n. 3 (2015): 1735–46. http://dx.doi.org/10.1039/c4sc01592d.

Testo completo

Abstract (sommario):

DFT calculations are used to elucidate the reaction mechanism, the role of the chlorosilyl group, and primary vs. secondary and C(sp³)–H vs. C(sp²)–H selectivity of the iridium-catalyzed borylation of chlorosilanes.

Gli stili APA, Harvard, Vancouver, ISO e altri

15

Liu, Yuhua, Jipei Chen, Kangsheng Zhan, Yiqiang Shen, Hui Gao e Lingmin Yao. "Mechanistic study of the ligand controlled regioselectivity in iridium catalyzed C–H borylation of aromatic imines". RSC Advances 8, n. 62 (2018): 35453–60. http://dx.doi.org/10.1039/c8ra07886f.

Testo completo

Abstract (sommario):

DFT calculation indicates that in iridium catalyzed C–H borylation of aromatics, the ortho selectivity is proposed to be attributed to the electron donating effect of AQ ligand, while the meta selectivity is due to steric hindrance of TMP ligand.

Gli stili APA, Harvard, Vancouver, ISO e altri

16

Tobisu, Mamoru, Takuya Igarashi e Naoto Chatani. "Iridium/N-heterocyclic carbene-catalyzed C–H borylation of arenes by diisopropylaminoborane". Beilstein Journal of Organic Chemistry 12 (7 aprile 2016): 654–61. http://dx.doi.org/10.3762/bjoc.12.65.

Testo completo

Abstract (sommario):

Catalytic C–H borylation of arenes has been widely used in organic synthesis because it allows the introduction of a versatile boron functionality directly onto simple, unfunctionalized arenes. We report herein the use of diisopropylaminoborane as a boron source in C–H borylation of arenes. An iridium(I) complex with 1,3-dicyclohexylimidazol-2-ylidene is found to efficiently catalyze the borylation of arenes and heteroarenes. The resulting aminoborylated products can be converted to the corresponding boronic acid derivatives simply by treatment with suitable diols or diamines.

Gli stili APA, Harvard, Vancouver, ISO e altri

17

Hirano, Koji, Masahiro Miura e Wataru Miura. "Iridium-Catalyzed Site-Selective C–H Borylation of 2-Pyridones". Synthesis 49, n. 21 (2 marzo 2017): 4745–52. http://dx.doi.org/10.1055/s-0036-1588735.

Testo completo

Abstract (sommario):

An iridium-catalyzed site-selective C–H borylation of 2-pyridones has been developed. The site selectivity is predominantly controlled by steric factors, and we can access C4, C5, and C6 C–H on the 2-pyridone ring by the judicious choice of ligand and solvent. Subsequent Suzuki–Miyaura cross-coupling of the borylated products also proceeds to form the corresponding arylated pyridones in good overall yields.

Gli stili APA, Harvard, Vancouver, ISO e altri

18

Kuleshova, Olena, Sobi Asako e Laurean Ilies. "Ligand-Enabled, Iridium-Catalyzed ortho-Borylation of Fluoroarenes". ACS Catalysis 11, n. 10 (30 aprile 2021): 5968–73. http://dx.doi.org/10.1021/acscatal.1c01206.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

19

Song, Shu-Yong, Yinwu Li, Zhuofeng Ke e Senmiao Xu. "Iridium-Catalyzed Enantioselective C–H Borylation of Diarylphosphinates". ACS Catalysis 11, n. 21 (21 ottobre 2021): 13445–51. http://dx.doi.org/10.1021/acscatal.1c03888.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

20

Robbins, Daniel W., Timothy A. Boebel e John F. Hartwig. "Iridium-Catalyzed, Silyl-Directed Borylation of Nitrogen-Containing Heterocycles". Journal of the American Chemical Society 132, n. 12 (31 marzo 2010): 4068–69. http://dx.doi.org/10.1021/ja1006405.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

21

Liskey, Carl W., e John F. Hartwig. "ChemInform Abstract: Iridium-Catalyzed C-H Borylation of Cyclopropanes." ChemInform 44, n. 34 (1 agosto 2013): no. http://dx.doi.org/10.1002/chin.201334177.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

22

Steel, Patrick G., e et al et al. "ChemInform Abstract: Iridium-Catalyzed C-H Borylation of Pyridines." ChemInform 46, n. 9 (16 febbraio 2015): no. http://dx.doi.org/10.1002/chin.201509190.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

23

Liskey, Carl W., Xuebin Liao e John F. Hartwig. "ChemInform Abstract: Cyanation of Arenes via Iridium-Catalyzed Borylation." ChemInform 42, n. 4 (30 dicembre 2010): no. http://dx.doi.org/10.1002/chin.201104045.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

24

Mamlouk, Hind, Jakkrit Suriboot, Praveen Kumar Manyam, Ahmed AlYazidi, David E. Bergbreiter e Sherzod T. Madrahimov. "Highly active, separable and recyclable bipyridine iridium catalysts for C–H borylation reactions". Catalysis Science & Technology 8, n. 1 (2018): 124–27. http://dx.doi.org/10.1039/c7cy01641g.

Testo completo

Abstract (sommario):

Iridium complexes generated from Ir(i) precursors and PIB oligomer functionalized bpy ligands efficiently catalyzed the reaction of arenes with bis(pinacolato)diboron under mild conditions to produce a variety of arylboronate compounds.

Gli stili APA, Harvard, Vancouver, ISO e altri

25

Maegawa, Yoshifumi, e Shinji Inagaki. "Iridium–bipyridine periodic mesoporous organosilica catalyzed direct C–H borylation using a pinacolborane". Dalton Transactions 44, n. 29 (2015): 13007–16. http://dx.doi.org/10.1039/c5dt00239g.

Testo completo

Abstract (sommario):

Iridium complex fixed on periodic mesoporous organosilica containing bipyridine ligands within a framework showed efficient heterogeneous catalysis for direct C–H borylation of arenes and heteroarenes in combination with an inexpensive pinacolborane.

Gli stili APA, Harvard, Vancouver, ISO e altri

26

Chotana, Ghayoor, Tayyaba Shahzadi e Rahman Saleem. "Facile Synthesis of Halogen Decorated para-/meta-Hydroxybenzoates by Iridium-Catalyzed Borylation and Oxidation". Synthesis 50, n. 21 (9 agosto 2018): 4336–42. http://dx.doi.org/10.1055/s-0037-1610538.

Testo completo

Abstract (sommario):

Hydroxybenzoates are an important class of phenols that are widely used as preservatives and antiseptics in the food and pharmaceutical industries. In this report, a facile preparation of 2,6- and 2,3-disubstituted 4/5-hydroxybenzoates by iridium-catalyzed borylation of respective disubstituted benzoate esters followed by oxidation is described. This synthetic route allows for the incorporation of halogens in the final hydroxybenzoates with substitution patterns not readily accessible by the traditional routes of aromatic functionalization.

Gli stili APA, Harvard, Vancouver, ISO e altri

27

Sasaki, Ikuo, Tatsunosuke Amou, Hajime Ito e Tatsuo Ishiyama. "Iridium-catalyzed ortho-C–H borylation of aromatic aldimines derived from pentafluoroaniline with bis(pinacolate)diboron". Org. Biomol. Chem. 12, n. 13 (2014): 2041–44. http://dx.doi.org/10.1039/c3ob42497a.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

28

Harrisson, Peter, James Morris, Todd B. Marder e Patrick G. Steel. "Microwave-Accelerated Iridium-Catalyzed Borylation of Aromatic C−H Bonds". Organic Letters 11, n. 16 (20 agosto 2009): 3586–89. http://dx.doi.org/10.1021/ol901306m.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

29

Chen, Lili, Yuhuan Yang, Luhua Liu, Qian Gao e Senmiao Xu. "Iridium-Catalyzed Enantioselective α-C(sp3)–H Borylation of Azacycles". Journal of the American Chemical Society 142, n. 28 (29 giugno 2020): 12062–68. http://dx.doi.org/10.1021/jacs.0c06756.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

30

Wang, Christy, e Jonathan Sperry. "Iridium-Catalyzed C–H Borylation-Based Synthesis of Natural Indolequinones". Journal of Organic Chemistry 77, n. 6 (6 marzo 2012): 2584–87. http://dx.doi.org/10.1021/jo300330u.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

31

Chen, Xiang, Lili Chen, Hongliang Zhao, Qian Gao, Zhenlu Shen e Senmiao Xu. "Iridium‐Catalyzed Enantioselective C(sp 3 )–H Borylation of Cyclobutanes". Chinese Journal of Chemistry 38, n. 12 (8 settembre 2020): 1533–37. http://dx.doi.org/10.1002/cjoc.202000240.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

32

Diesendruck, Charles E., Gabrielle Rubin, Jeffery A. Bertke, Danielle L. Gray e Jeffrey S. Moore. "Crystal structure of 1,3-bis(2,3-dimethylquinoxalin-6-yl)benzene". Acta Crystallographica Section E Crystallographic Communications 71, n. 12 (4 novembre 2015): 1429–32. http://dx.doi.org/10.1107/s2056989015020435.

Testo completo

Abstract (sommario):

The title compound, C26H22N4(I), was synthesized by C—H iridium-catalyzed borylation followed by Suzuki coupling. The molecular structure of (I) consists of a central benzene ring with 3-dimethylquinoxalin-6-yl groups at the 1 and 3 positions. These 2,3-dimethylquinoxalin-6-yl groups twist significantly out of the plane of the benzene ring. There are intermolecular π–π interactions which result in a two-dimensional extended structure. The layers extend parallel to theabplane and stack along thecaxis.

Gli stili APA, Harvard, Vancouver, ISO e altri

33

Sperry, Jonathan, e Andrew Eastabrook. "Synthetic Access to 3,5,7-Trisubstituted Indoles Enabled by Iridium-Catalyzed C–H Borylation". Synthesis 49, n. 21 (8 maggio 2017): 4731–37. http://dx.doi.org/10.1055/s-0036-1589018.

Testo completo

Abstract (sommario):

A one-pot conversion of 3-substituted indoles into their 5,7-diboryl derivatives is reported. The simultaneous functionalization of the C5-H and C7-H sites is achieved using an iridium-catalyzed triborylation-protodeborylation sequence. The 5,7-diborylindoles are useful intermediates that can be readily derivatized into a variety of indoles possessing the rare 3,5,7-trisubstitution pattern, including the natural product (+)-plakohypaphorine C.

Gli stili APA, Harvard, Vancouver, ISO e altri

34

Nagase, Mai, Kenta Kato, Akiko Yagi, Yasutomo Segawa e Kenichiro Itami. "Six-fold C–H borylation of hexa-peri-hexabenzocoronene". Beilstein Journal of Organic Chemistry 16 (13 marzo 2020): 391–97. http://dx.doi.org/10.3762/bjoc.16.37.

Testo completo

Abstract (sommario):

Hexa-peri-hexabenzocoronene (HBC) is known to be a poorly soluble polycyclic aromatic hydrocarbon for which direct functionalization methods have been very limited. Herein, the synthesis of hexaborylated HBC from unsubstituted HBC is described. Iridium-catalyzed six-fold C–H borylation of HBC was successfully achieved by screening solvents. The crystal structure of hexaborylated HBC was confirmed via X-ray crystallography. Optoelectronic properties of the thus-obtained hexaborylated HBC were analyzed with the support of density functional theory calculations. The spectra revealed a bathochromic shift of absorption bands compared with unsubstituted HBC under the effect of the σ-donation of boryl groups.

Gli stili APA, Harvard, Vancouver, ISO e altri

35

Liu, Luhua, Rongrong Du e Senmiao Xu. "Ligand-Free Iridium-Catalyzed Borylation of Secondary Benzylic C—H Bonds". Chinese Journal of Organic Chemistry 41, n. 4 (2021): 1572. http://dx.doi.org/10.6023/cjoc202101009.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

36

Murphy, Jaclyn M., Xuebin Liao e John F. Hartwig. "Meta Halogenation of 1,3-Disubstituted Arenes via Iridium-Catalyzed Arene Borylation". Journal of the American Chemical Society 129, n. 50 (dicembre 2007): 15434–35. http://dx.doi.org/10.1021/ja076498n.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

37

Larsen, Matthew A., Seung Hwan Cho e John Hartwig. "Iridium-Catalyzed, Hydrosilyl-Directed Borylation of Unactivated Alkyl C–H Bonds". Journal of the American Chemical Society 138, n. 3 (15 gennaio 2016): 762–65. http://dx.doi.org/10.1021/jacs.5b12153.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

38

Liskey, Carl W., e John F. Hartwig. "Iridium-Catalyzed Borylation of Secondary C–H Bonds in Cyclic Ethers". Journal of the American Chemical Society 134, n. 30 (20 luglio 2012): 12422–25. http://dx.doi.org/10.1021/ja305596v.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

39

Sadler, Scott A., Andrew C. Hones, Bryan Roberts, David Blakemore, Todd B. Marder e Patrick G. Steel. "Multidirectional Synthesis of Substituted Indazoles via Iridium-Catalyzed C–H Borylation". Journal of Organic Chemistry 80, n. 10 (maggio 2015): 5308–14. http://dx.doi.org/10.1021/acs.joc.5b00452.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

40

Reyes, Ronald L., Tomohiro Iwai, Satoshi Maeda e Masaya Sawamura. "Iridium-Catalyzed Asymmetric Borylation of Unactivated Methylene C(sp3)–H Bonds". Journal of the American Chemical Society 141, n. 17 (15 aprile 2019): 6817–21. http://dx.doi.org/10.1021/jacs.9b01952.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

41

Roering, Andrew J., Lillian V. A. Hale, Phillip A. Squier, Marissa A. Ringgold, Emily R. Wiederspan e Timothy B. Clark. "Iridium-Catalyzed, Substrate-Directed C–H Borylation Reactions of Benzylic Amines". Organic Letters 14, n. 13 (25 giugno 2012): 3558–61. http://dx.doi.org/10.1021/ol301635x.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

42

Partridge, Benjamin M., e John F. Hartwig. "Sterically Controlled Iodination of Arenes via Iridium-Catalyzed C–H Borylation". Organic Letters 15, n. 1 (20 dicembre 2012): 140–43. http://dx.doi.org/10.1021/ol303164h.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

43

Robbins, Daniel W., e John F. Hartwig. "Sterically Controlled Alkylation of Arenes through Iridium-Catalyzed CH Borylation". Angewandte Chemie 125, n. 3 (11 dicembre 2012): 967–71. http://dx.doi.org/10.1002/ange.201208203.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

44

Hume, Paul, Daniel P. Furkert e Margaret A. Brimble. "ChemInform Abstract: Regioselective Iridium(I)-Catalyzed Remote Borylation of Oxygenated Naphthalenes." ChemInform 43, n. 42 (20 settembre 2012): no. http://dx.doi.org/10.1002/chin.201242094.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

45

Pang, Yadong, Tatsuo Ishiyama, Koji Kubota e Hajime Ito. "Iridium(I)‐Catalyzed C−H Borylation in Air by Using Mechanochemistry". Chemistry – A European Journal 25, n. 18 (8 marzo 2019): 4654–59. http://dx.doi.org/10.1002/chem.201900685.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

46

Robbins, Daniel W., Timothy A. Boebel e John F. Hartwig. "ChemInform Abstract: Iridium-Catalyzed, Silyl-Directed Borylation of Nitrogen-Containing Heterocycles." ChemInform 41, n. 32 (23 luglio 2010): no. http://dx.doi.org/10.1002/chin.201032051.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

47

Robbins, Daniel W., e John F. Hartwig. "Sterically Controlled Alkylation of Arenes through Iridium-Catalyzed CH Borylation". Angewandte Chemie International Edition 52, n. 3 (11 dicembre 2012): 933–37. http://dx.doi.org/10.1002/anie.201208203.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

48

Kano, Haruka, Keiji Uehara, Kyohei Matsuo, Hironobu Hayashi, Hiroko Yamada e Naoki Aratani. "Direct borylation of terrylene and quaterrylene". Beilstein Journal of Organic Chemistry 16 (6 aprile 2020): 621–27. http://dx.doi.org/10.3762/bjoc.16.58.

Testo completo

Abstract (sommario):

The preparation of large rylenes often needs the use of solubilizing groups along the rylene backbone, and all the substituents of the terrylenes and quaterrylenes were introduced before creating the rylene skeleton. In this work, we successfully synthesized 2,5,10,13-tetrakis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)terrylene (TB4) by using an iridium-catalyzed direct borylation of C–H bonds in terrylene in 56% yield. The product is soluble in common organic solvents and could be purified without column chromatography. Single crystal X-ray diffraction analysis revealed that the terrylene core is not disturbed by the substituents and is perfectly flat. The photophysical properties of TB4 are also unchanged by the substituents because the carbon atoms at 2,5,10,13-positions have less coefficients on its HOMO and LUMO, estimated by theoretical calculations. Finally, the same borylation reaction was applied for quaterrylene, resulting in the formation of soluble tetra-borylated quaterrylene despite a low yield. The post modification of rylenes enables us to prepare their borylated products as versatile units after creating the rylene skeletons.

Gli stili APA, Harvard, Vancouver, ISO e altri

49

Boebel, Timothy A., e John F. Hartwig. "Iridium-Catalyzed Preparation of Silylboranes by Silane Borylation and Their Use in the Catalytic Borylation of Arenes". Organometallics 27, n. 22 (24 novembre 2008): 6013–19. http://dx.doi.org/10.1021/om800696d.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

50

Genov, Georgi R., James L. Douthwaite, Antti S. K. Lahdenperä, David C. Gibson e Robert J. Phipps. "Enantioselective remote C–H activation directed by a chiral cation". Science 367, n. 6483 (12 marzo 2020): 1246–51. http://dx.doi.org/10.1126/science.aba1120.

Testo completo

Abstract (sommario):

Chiral cations have been used extensively as organocatalysts, but their application to rendering transition metal–catalyzed processes enantioselective remains rare. This is despite the success of the analogous charge-inverted strategy in which cationic metal complexes are paired with chiral anions. We report here a strategy to render a common bipyridine ligand anionic and pair its iridium complexes with a chiral cation derived from quinine. We have applied these ion-paired complexes to long-range asymmetric induction in the desymmetrization of the geminal diaryl motif, located on a carbon or phosphorus center, by enantioselective C–H borylation. In principle, numerous common classes of ligand could likewise be amenable to this approach.

Gli stili APA, Harvard, Vancouver, ISO e altri

Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!