Добірка наукової літератури з теми "Α-hydroxyketones"
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Статті в журналах з теми "Α-hydroxyketones"
Huang, Jinwen, Fanhong Wu, Zhongyuan Li, Zhuang Ni, Ran Sun, Hui Nie, Hui Tang та Lixing Song. "Indium-Mediated Reformatsky Reaction of Iododifluoro Ketones with Aldehydes: Preparation of α,α-Difluoro-β-hydroxyketone Derivatives in Water". SynOpen 06, № 01 (січень 2022): 19–30. http://dx.doi.org/10.1055/s-0040-1719888.
Повний текст джерелаKam, Mei Kee, Akira Sugiyama, Ryouta Kawanishi та Kazutaka Shibatomi. "Asymmetric Synthesis of Tertiary α -Hydroxyketones by Enantioselective Decarboxylative Chlorination and Subsequent Nucleophilic Substitution". Molecules 25, № 17 (27 серпня 2020): 3902. http://dx.doi.org/10.3390/molecules25173902.
Повний текст джерелаZheng, Shasha, Wietse Smit, Anke Spannenberg, Sergey Tin та Johannes G. de Vries. "Synthesis of α-keto aldehydes via selective Cu(i)-catalyzed oxidation of α-hydroxy ketones". Chemical Communications 58, № 29 (2022): 4639–42. http://dx.doi.org/10.1039/d2cc00773h.
Повний текст джерелаNaveen, Naganaboina, та Rengarajan Balamurugan. "Catalyst free synthesis of α-fluoro-β-hydroxy ketones/α-fluoro-ynols via electrophilic fluorination of tertiary propargyl alcohols using Selectfluor™ (F-TEDA-BF4)". Organic & Biomolecular Chemistry 15, № 9 (2017): 2063–72. http://dx.doi.org/10.1039/c7ob00140a.
Повний текст джерелаTanaka, Toru, Masami Kawase та Satoru Tani. "α-Hydroxyketones as inhibitors of urease". Bioorganic & Medicinal Chemistry 12, № 2 (січень 2004): 501–5. http://dx.doi.org/10.1016/j.bmc.2003.10.017.
Повний текст джерелаOelerich, Jens, та Gerard Roelfes. "Alkylidene malonates and α,β-unsaturated α′-hydroxyketones as practical substrates for vinylogous Friedel–Crafts alkylations in water catalysed by scandium(iii) triflate/SDS". Organic & Biomolecular Chemistry 13, № 9 (2015): 2793–99. http://dx.doi.org/10.1039/c4ob02487g.
Повний текст джерелаTsukamoto, Takashi, Takashi Yamazaki та Tomoya Kitazume. "Enzymic Optical Resolution of α,α-Difluoro-β-Hydroxyketones". Synthetic Communications 20, № 20 (листопад 1990): 3181–86. http://dx.doi.org/10.1080/00397919008051543.
Повний текст джерелаIseki, Katsuhiko, Daisuke Asada та Yoshichika Kuroki. "Preparation of optically active α,α-difluoro-β-hydroxyketones". Journal of Fluorine Chemistry 97, № 1-2 (липень 1999): 85–89. http://dx.doi.org/10.1016/s0022-1139(99)00033-0.
Повний текст джерелаLi, Heng, Nan Liu, Xian Hui, and Wen-Yun Gao. "An improved enzymatic method for the preparation of (R)-phenylacetyl carbinol." RSC Advances 7, no. 52 (2017): 32664–68. http://dx.doi.org/10.1039/c7ra04641c.
Повний текст джерелаMuschallik, Lukas, Denise Molinnus, Melanie Jablonski, Carina Ronja Kipp, Johannes Bongaerts, Martina Pohl, Torsten Wagner, Michael J. Schöning, Thorsten Selmer та Petra Siegert. "Synthesis of α-hydroxy ketones and vicinal (R,R)-diols by Bacillus clausii DSM 8716T butanediol dehydrogenase". RSC Advances 10, № 21 (2020): 12206–16. http://dx.doi.org/10.1039/d0ra02066d.
Повний текст джерелаДисертації з теми "Α-hydroxyketones"
Higson, Sally. "Sustainable approaches to the synthesis of aromatic compounds and α-hydroxyketones". Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/10037691/.
Повний текст джерелаOcal, Nazim. "Ingénierie de la transcétolase de Geobacillus stearothermophilus : cascade enzymatique pour la synthèse d’alpha-hydroxycétones chirales." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2022. http://www.theses.fr/2022UCFAC047.
Повний текст джерелаUnsymmetric chiral α-hydroxyketones highly valuable for their biological properties were obtained with a thermostable transketolase Geobacillus stearothermophilus (TKgst), wild-type or mutated in the presence of different α-ketoacids as donors and aldehydes as acceptors. The first objective was to obtain, by enzymatic way, the most commonly used enzymatic screening-ketoacid as a TK donor, hydroxypyruvate, from D-serine, according to an eco-compatible method compared the usual chemical synthesis. This strategy involves a D-amino acid oxidase (DAAO) which has been coupled to wild-type or mutated TKs in the presence of aliphatic or polyhydroxylated aldehydes. This bienzymatic cascade was performed in a single pot and led to seven chiral α-hydroxyketones with good yields and excellent stereoselectivities. These high value-added compounds can be used for their biological properties in the flavoring, sweetening or medical sectors. In order to optimize the strategy, the production of D-serine was considered from two inexpensive achiral substrates, glycine and formaldehyde, using a D-threonine aldolase. The other objective of this thesis concerned the broadening of the spectrum of TKgst donor substrates by mutagenesis towards new α-ketoacids, in particular functionalized ones, as well as the combination of these new α-ketoacids with polyhydroxylated acceptor aldehydes. A colorimetric test based on the variation of the pH of the reaction medium was developed on a solid medium making it possible to screen the libraries and to visualize the active mutated TKgst according to the color of the clones. Among the donor substrates tested, only aliphatic α-ketoacids and more particularly oxobutyrate lead, in the presence of two new mutated TKgst H102L/H474S/L118I and H102L/L118I, to the highest activity gains compared to wild-type TKgst and to the variants already described. The thermostable H102L/L118I variant was coupled to a thermostable DAAO 4536 in the presence of D-homoalanine, precursor of oxobutyrate and three polyhydroxylated aldehydes, D-erythrose, D-xylose and D-ribose as acceptors. The conversion of D-erythrose was total and faster compared to D-ribose and D-xylose, compounds with longer carbon chains. The three corresponding enzymatic screening-hydroxyketones were obtained with high diastereoisomeric excesses showing that the mutated positions at the TKgst active site have no effect on the catalytic mechanism
Maraite, Andy [Verfasser], та Marion [Akademischer Betreuer] Ansorge-Schumacher. "Identifizierung, Bereitstellung und Charakterisierung von Pseudomonas Lipasen zur kinetischen Racemattrennung von α-Hydroxyketonen / Andy Maraite. Betreuer: Marion Ansorge-Schumacher". Berlin : Universitätsbibliothek der Technischen Universität Berlin, 2011. http://d-nb.info/1014946395/34.
Повний текст джерелаNieguth, René [Verfasser], та Reinhard [Akademischer Betreuer] Schomäcker. "Entwicklung einer robusten chemo-enzymatisch dynamisch kinetischen Racematspaltung für die nachhaltige Synthese chiraler α-Hydroxyketone / René Nieguth. Betreuer: Reinhard Schomäcker". Berlin : Universitätsbibliothek der Technischen Universität Berlin, 2013. http://d-nb.info/1033640417/34.
Повний текст джерелаHornung, Claudia Katharina [Verfasser], та Wolfgang [Akademischer Betreuer] Streit. "Violacein-producing Janthinobacterium sp. HH01 : Genome analysis revealed a novel α-hydroxyketone-sensing reporter-strain / Claudia Katharina Hornung. Betreuer: Wolfgang Streit". Hamburg : Staats- und Universitätsbibliothek Hamburg, 2013. http://d-nb.info/1042753822/34.
Повний текст джерелаPetrenz-Beck, Annika Verfasser], Marion B. [Gutachter] Ansorge-Schumacher та Ulf [Gutachter] [Hanefeld. "Heterogene chemo-enzymatische dynamisch kinetische Racematspaltung symmetrischer und asymmetrischer α-Hydroxyketone / Annika Petrenz-Beck ; Gutachter: Marion B. Ansorge-Schumacher, Ulf Hanefeld". Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://d-nb.info/1226813216/34.
Повний текст джерелаBieler, Nora Christiane [Verfasser], та Marion [Akademischer Betreuer] Ansorge-Schumacher. "Präparation spezieller Biokatalysatoren für die chemisch-technische Nutzung zur Bereitstellung von Aromaten und chiralen α-Hydroxyketonen / Nora Christiane Bieler. Betreuer: Marion Ansorge-Schumacher". Berlin : Universitätsbibliothek der Technischen Universität Berlin, 2011. http://d-nb.info/1014827612/34.
Повний текст джерелаHaack, Frederike Svenja [Verfasser], та Wolfgang [Akademischer Betreuer] Streit. "Genome, mutational and RNA-seq analyses of Janthinobacterium and Duganella strains reveal the presence of a single α-hydroxyketone-like quorum sensing system involved in bacterial-fungal interactions / Frederike Svenja Haack ; Betreuer: Wolfgang Streit". Hamburg : Staats- und Universitätsbibliothek Hamburg, 2017. http://d-nb.info/1124155376/34.
Повний текст джерелаHaack, Frederike Svenja [Verfasser], та Wolfgang [Akademischer Betreuer] Streit. "Genome, mutational and RNA-seq analyses of Janthinobacterium and Duganella strains reveal the presence of a single α-hydroxyketone-like quorum sensing system involved in bacterial-fungal interactions / Frederike Svenja Haack ; Betreuer: Wolfgang Streit". Hamburg : Staats- und Universitätsbibliothek Hamburg, 2016. http://d-nb.info/1120015073/34.
Повний текст джерелаHuang, Pei-Wen, та 黃姵文. "Hypervalent Iodine(III) Reagent Mediated Synthesis of Dienones, α, β-unsaturated Weinreb amides and α-Hydroxyketones". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/q22j6m.
Повний текст джерела高雄醫學大學
藥學研究所
91
In recent years, hypervalent iodine reagents have attracted much attention as useful synthetic reagents. These hypervalent iodine reagents have been extensively used inorganic synthesis due to their low toxicity and easy handling. In the family of hypervalent iodine compounds, phenyl iodine(III) diacetate(PIDA), phenyliodine (III) bis(trifluoroacetate) (PIFA) and [hydroxy(tosyloxy)iodo]benzene (HTIB) are the most frequently used and easily available reagents. In this work, PIDA, PIFA, and HTIB will be applied to prepared dienones, α,β-unsatured Weinreb amides and α-hydroxyketones.
Частини книг з теми "Α-hydroxyketones"
Calvert, Jack, Abdelwahid Mellouki, John Orlando, Michael Pilling, and Timothy Wallington. "Rate Coefficients and Mechanisms for the Atmospheric Oxidation of the Ketones." In Mechanisms of Atmospheric Oxidation of the Oxygenates. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199767076.003.0008.
Повний текст джерела