Letteratura scientifica selezionata sul tema "C(sp2)-H bond activation"
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Articoli di riviste sul tema "C(sp2)-H bond activation":
Wang, Xiao, Ming-Zhu Lu e Teck-Peng Loh. "Transition-Metal-Catalyzed C–C Bond Macrocyclization via Intramolecular C–H Bond Activation". Catalysts 13, n. 2 (17 febbraio 2023): 438. http://dx.doi.org/10.3390/catal13020438.
Valentini, Federica, Oriana Piermatti e Luigi Vaccaro. "Metal and Metal Oxide Nanoparticles Catalyzed C–H Activation for C–O and C–X (X = Halogen, B, P, S, Se) Bond Formation". Catalysts 13, n. 1 (22 dicembre 2022): 16. http://dx.doi.org/10.3390/catal13010016.
Paira, Moumita. "Recent Developments of Palladium-Catalyzed C(sp3)/C(sp2)-H Bond Functionalizations Assisted by 8-Aminoquinoline Bidentate Directing Group". Asian Journal of Chemistry 34, n. 8 (2022): 1958–74. http://dx.doi.org/10.14233/ajchem.2022.23774.
Liu, Jialin, Xiaoyu Xiong, Jie Chen, Yuntao Wang, Ranran Zhu e Jianhui Huang. "Double C–H Activation for the C–C bond Formation Reactions". Current Organic Synthesis 15, n. 7 (16 ottobre 2018): 882–903. http://dx.doi.org/10.2174/1570179415666180720111422.
Cheng, Huiling, Yubo Jiang, Jianhua Yang, Fen Zhao, Yaowen Liu e Fang Luo. "Selective Diacetoxylation of Disubstituted 1,2,3-Triazoles through Palladium-Catalyzed C–H Activation". Synlett 29, n. 10 (12 aprile 2018): 1373–78. http://dx.doi.org/10.1055/s-0036-1591564.
Shin, Seohyun, Dongjin Kang, Woo Hyung Jeon e Phil Ho Lee. "Synthesis of ethoxy dibenzooxaphosphorin oxides through palladium-catalyzed C(sp2)–H activation/C–O formation". Beilstein Journal of Organic Chemistry 10 (23 maggio 2014): 1220–27. http://dx.doi.org/10.3762/bjoc.10.120.
Liu, Weidong, Qingzhen Yu, Le'an Hu, Zenghua Chen e Jianhui Huang. "Modular synthesis of dihydro-isoquinolines: palladium-catalyzed sequential C(sp2)–H and C(sp3)–H bond activation". Chemical Science 6, n. 10 (2015): 5768–72. http://dx.doi.org/10.1039/c5sc01482d.
Britton, Luke, Jamie H. Docherty, Andrew P. Dominey e Stephen P. Thomas. "Iron-Catalysed C(sp2)-H Borylation Enabled by Carboxylate Activation". Molecules 25, n. 4 (18 febbraio 2020): 905. http://dx.doi.org/10.3390/molecules25040905.
Geng, Cuihuan, Sujuan Zhang, Chonggang Duan, Tongxiang Lu, Rongxiu Zhu e Chengbu Liu. "Theoretical investigation of gold-catalyzed oxidative Csp3–Csp2 bond formation via aromatic C–H activation". RSC Advances 5, n. 97 (2015): 80048–56. http://dx.doi.org/10.1039/c5ra16359e.
Li, Guang-Hui, Dao-Qing Dong, Xian-Yong Yu e Zu-Li Wang. "Direct synthesis of 8-acylated quinoline N-oxidesviapalladium-catalyzed selective C–H activation and C(sp2)–C(sp2) cleavage". New Journal of Chemistry 43, n. 4 (2019): 1667–70. http://dx.doi.org/10.1039/c8nj05374j.
Tesi sul tema "C(sp2)-H bond activation":
Massouh, Joe. "Transition metals-catalyzed C(sp2)-H bond activation for aldehyde functionalization". Electronic Thesis or Diss., Ecole centrale de Marseille, 2022. http://www.theses.fr/2022ECDM0001.
The synthesis of α-ketoacid, precursor or analogue of amino-acid, presents a center of interest. One of the synthetic pathways leading to these molecules could be the direct functionalization of aldehyde. The C(sp2)-H bond activation of aldehyde catalyzed by organometallic complexes is a powerful tool to afford various elaborated products in a relatively sustainable manner.In the first chapter of this manuscript, we presented the organometallic complexes based on different transition metals like Rh, Co, Ru, Ni, and Ir, that are able to activate selectively the C(sp2)-H bond of aldehyde. The reported procedures involve transition metals at low oxidation state favoring the oxidative addition mechanism, or at high oxidation state favoring the concerted metalation deprotonation process. This presentation allows to display the advantages and the drawbacks of each approach and highlights the novelty in each concept.In the second chapter, according to bibliography, procedures were investigated to achieve aldehyde C-H functionalization with various reagents, notably carbon dioxide. Various transition metals at low oxidation states were studied, and the reactivity of the aldehyde substrate remained restricted to the reported examples under Rh(I)-catalysis. In the case of high oxidation state transition metals, Rh(III)-catalytic complex was found efficient to mediate new pathway to imides using dioxazolones in good yields (up to 97%). Numerous parameters affecting the C-H activation of aldehyde were screened, and the mechanistic investigations were supported by labelling tests. Unfortunately, we observed that some catalytic systems, that are able to achieve aromatic C(sp2)-H bond functionalization with carbon dioxide, were not efficient to afford the carboxylation of aldehydic C(sp2)-H bond. The third chapter disclosed the experimental procedures and the characterization of the new products, notably imides
Zhao, Liqin. "Palladium-catalyzed direct arylation via sp² and sp³ C-H activation of hetero(aromatics) and hydrocarbons for C-C bond formation". Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S038/document.
During this thesis, we were interested in the sp² and sp³ C-H bond activation catalyzed by palladium catalysts for the preparation of (hetero)aryl-aryls and biaryls. This method is considered as cost effective and environmentally attractive compared to the classical couplings such as Suzuki, Heck, or Negishi. First we described the palladium-catalyzed direct C2-arylation of benzothiophene in the absence of phosphine ligand with high selectivity. We also demonstrated that it is possible to active both C2 and C5 C-H bonds for access to 2,5-diarylated compounds in one step, and also to non-symmetrically substituted 2,5-diarylpyrroles via sequential C2 arylation followed by C5 arylation. We also studied the reactivity of polychlorobenzenes via palladium-catalyzed C-H activation. We finally examined the palladium-catalysed selective sp² and sp³ C-H bond activation of guaiazulene. The selectivity depends on the solvent and base: sp² C2-arylation (KOAc in ethylbenzene), sp² C3-arylation (KOAc in DMAc) and sp³ C4-Me arylation (CsOAc/K₂CO₃ in DMAc). Through this method, a challenging sp³ C-H bond was activated
Jadhav, D. "Visible light photoredox catalysis in sp3 C-H activation of t-amines for C-C bond formation reaction". Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2014. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/1948.
Obenhuber, Andreas H. [Verfasser]. "Investigation into the chelate assisted activation of non-strained C(sp2)-C(sp2) single bonds using group 8, 9 and 10 transition metal complexes / Andreas H. Obenhuber". München : Verlag Dr. Hut, 2011. http://d-nb.info/1011441535/34.
Sofack-Kreutzer, Julien. "Synthèses de carbocycles et d'hétérocycles à cinq chaînons par activation de liaisons c(sp3)-h non activées". Phd thesis, Université Claude Bernard - Lyon I, 2011. http://tel.archives-ouvertes.fr/tel-00744243.
Guyonnet, Mathieu. "Synthèse totale d’alcaloïdes de type dibenzopyrrocoline par arylation C(sp3)-H intramoléculaire". Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10143.
The direct functionalization of unactivated C-H bonds represents an atom- and stepeconomical alternative to more traditional synthetic methods based on functional group interconversion. Transition-metal catalysis has recently emerged as a powerful tool to functionalize otherwise unreactive C-H bonds. Whereas a lot of methodological studies have been developed in the past decade, few applications of these methodologies in multi-step or total synthesis have been reported in the literature. In this context, we envisioned the total synthesis of dibenzopyrrocoline alkaloids, a family of structurally original natural products, by using intramolecular C(sp3)-H arylation as a key step. This work led us to first develop a N-arylation / bromination / intramolecular C(sp3)-H arylation sequence which allowed us to access diverse fused tricyclic indolines. We next investigated the application of this strategy to the synthesis of the dibenzopyrrocoline motif. The difficulty to access the C(sp3)-H arylation precursor required an exploration of different synthetic pathways, which proved to be potentially promising. Finally the different performed methodological studies showed the feasibility of the intramolecular C(sp3)-H arylation of tertiary anilines, which was never described in the literature
Renaudat, Alice. "Fonctionnalisation de liaisons C(sp3)-H non activées catalysées par le palladium". Phd thesis, Université Claude Bernard - Lyon I, 2010. http://tel.archives-ouvertes.fr/tel-00704011.
Rousseaux, Sophie. "Palladium-Catalyzed C(sp2)-C(sp3) Bond Formation". Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23058.
Torkelson, Jeffrey Robert. "C-H bond activation and C-C bond formation at adjacent metals". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ34848.pdf.
Vastine, Benjamin Alan. "Understanding mechanisms for C-H bond activation". [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2679.
Libri sul tema "C(sp2)-H bond activation":
Dixneuf, Pierre H., e Henri Doucet, a cura di. C-H Bond Activation and Catalytic Functionalization II. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29319-6.
Dixneuf, Pierre H., e Henri Doucet, a cura di. C-H Bond Activation and Catalytic Functionalization I. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24630-7.
Matsumoto, Arimasa. Iron-Catalyzed Synthesis of Fused Aromatic Compounds via C–H Bond Activation. Tokyo: Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-54928-4.
Li, Jie Jack. C-H Bond Activation in Organic Synthesis. Taylor & Francis Group, 2015.
Li, Jie Jack. C-H Bond Activation in Organic Synthesis. Taylor & Francis Group, 2015.
Li, Jie Jack. C-H Bond Activation in Organic Synthesis. Taylor & Francis Group, 2017.
Li, Jie Jack. C-H Bond Activation in Organic Synthesis. Taylor & Francis Group, 2015.
Dixneuf, Pierre H., e Henri Doucet. C-H Bond Activation and Catalytic Functionalization II. Springer London, Limited, 2016.
Dixneuf, Pierre H., e Henri Doucet. C-H Bond Activation and Catalytic Functionalization I. Springer, 2016.
Dixneuf, Pierre H., e Henri Doucet. C-H Bond Activation and Catalytic Functionalization II. Springer, 2018.
Capitoli di libri sul tema "C(sp2)-H bond activation":
Kakiuchi, Fumitoshi, e Naoto Chatani. "Ruthenium-Catalyzed Reactions via sp CH, sp2 CH, sp3 CH, and CHalogen Bond Activations". In Ruthenium in Organic Synthesis, 219–55. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603832.ch9.
Shang, Rui. "β-Arylation of Carboxamides Via Iron-Catalyzed C(sp3)–H Bond Activation". In Springer Theses, 175–96. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-3193-9_10.
Yoo, Woo-Jin, e Chao-Jun Li. "Cross-Dehydrogenative Coupling Reactions of sp3-Hybridized C–H Bonds". In C-H Activation, 281–302. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/128_2009_17.
Bouffard, Jean, e Kenichiro Itami. "Rhodium-Catalyzed C–H Bond Arylation of Arenes". In C-H Activation, 231–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/128_2009_12.
Liu, Guosheng, e Yichen Wu. "Palladium-Catalyzed Allylic C–H Bond Functionalization of Olefins". In C-H Activation, 195–209. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/128_2009_16.
Ackermann, Lutz, e Rubén Vicente. "Ruthenium-Catalyzed Direct Arylations Through C–H Bond Cleavages". In C-H Activation, 211–29. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/128_2009_9.
You, Shu-Li, e Ji-Bao Xia. "Palladium-Catalyzed Aryl–Aryl Bond Formation Through Double C–H Activation". In C-H Activation, 165–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/128_2009_18.
Beck, Elizabeth M., e Matthew J. Gaunt. "Pd-Catalyzed C–H Bond Functionalization on the Indole and Pyrrole Nucleus". In C-H Activation, 85–121. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/128_2009_15.
Li, Bin, e Pierre H. Dixneuf. "Ruthenium(II)-Catalysed sp2 C–H Bond Functionalization by C–C Bond Formation". In Ruthenium in Catalysis, 119–93. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/3418_2014_85.
Ilies, Laurean, e Eiichi Nakamura. "Iron-Catalyzed C–H Bond Activation". In Topics in Organometallic Chemistry, 1–18. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_129.
Atti di convegni sul tema "C(sp2)-H bond activation":
Wang, Xueqiang, Joan G. Donaire e Ruben Martin. "Metal-Free sp2 and sp3 C-H Functionalization/C-O Bond Forming Reaction". In 15th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_2013815132216.
Ulin-Avila, Erick, e Akhilesh Kumar Mishra. "Graphene-based Photonic C-H bond activation". In Frontiers in Optics. Washington, D.C.: OSA, 2021. http://dx.doi.org/10.1364/fio.2021.jtu1a.55.
Nyambo, Silver, Dong-Sheng Yang e Yuchen Zhang. "PROBING SELECTIVE BOND ACTIVATION IN ALKYLAMINES: LANTHANUM-MEDIATED C-H AND N-H BOND ACTIVATION STUDIED BY MATI SPECTROSCOPY." In 73rd International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2018. http://dx.doi.org/10.15278/isms.2018.fb01.
Lian, T., S. E. Bromberg, H. Yang, M. Asplund, R. G. Bergman e C. B. Harris. "Femtosecond IR Studies of Alkane C-H Bond Activation by Organometallic Compounds". In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/up.1996.fe.27a.
Kim, Jong, e Dong-Sheng Yang. "YTTRIUM-ASSISTED C-H AND C-C BOND ACTIVATION OF ETHYLENE PROBED BY MASS-ANALYZED THRESHOLD IONIZATION SPECTROSCOPY". In 71st International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2016. http://dx.doi.org/10.15278/isms.2016.ri06.
Kim, Jong, e Dong-Sheng Yang. "SPECTROSCOPIC IDENTIFICATION OF Y(C4H6) ISOMERS FORMED BY YTTRIUM-MEDIATED C-H BOND ACTIVATION OF BUTENES". In 71st International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2016. http://dx.doi.org/10.15278/isms.2016.mh09.
Jay, Raphael M., Ambar Banerjee, Torsten Leitner, Robert Stefanuik, Ru-Pan Wang, Jessica Harich, Emma Beale et al. "From Femtosecond Excited-State and Dissociation Dynamics to Nanosecond Reaction Kinetics: Following C-H Bond Activation with X-rays". In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/up.2022.tu1a.2.
Atanasković, Ana, Thomas Eichhorn, Dejan Milenković, Dušan Dimić, Goran Kaluđerović e Jasmina Dimitrić Marković. "Synthesis, spectroscopic, and theoretical analysis of Ru(II)-phenylhydrazine complex". In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.395a.
Khan, Shahriar, e Evangelos Miliordos. "ELECTRONIC STRUCTURE OF THE GROUND AND EXCITED STATES OF RhO2+: ITS ROLE IN THE C-H BOND ACTIVATION OF METHANE". In 2020 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2020. http://dx.doi.org/10.15278/isms.2020.fd05.
Khan, Shahriar, e Evangelos Miliordos. "ELECTRONIC STRUCTURE OF THE GROUND AND EXCITED STATES OF RhO<sup>2+</sup>: ITS ROLE IN THE C-H BOND ACTIVATION OF METHANE". In 2021 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2021. http://dx.doi.org/10.15278/isms.2021.rl03.
Rapporti di organizzazioni sul tema "C(sp2)-H bond activation":
Lees, Alistair J. Photochemistry of Intermolecular C-H Bond Activation Reactions. Office of Scientific and Technical Information (OSTI), giugno 2000. http://dx.doi.org/10.2172/761218.
Asplund, M. C. Time resolved infrared studies of C-H bond activation by organometallics. Office of Scientific and Technical Information (OSTI), giugno 1998. http://dx.doi.org/10.2172/290889.
Lees, A. J. [Photochemistry of intermolecular C-H bond activation reactions]. Progress report, [September 15, 1994--March 15, 1995]. Office of Scientific and Technical Information (OSTI), dicembre 1994. http://dx.doi.org/10.2172/35271.