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Relevant bibliographies by topics / Synthesis of chiral aldehyde

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Dissertations / Theses

Academic literature on the topic 'Synthesis of chiral aldehyde'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Dissertations / Theses on the topic "Synthesis of chiral aldehyde"

1

Selim, Mohammed Refat Moustafa. "Studies on asymmetric induction." Thesis, University of Leicester, 1987. http://hdl.handle.net/2381/33892.

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As a part of our studies on asymmetric induction, four topics were investigated in this thesis. Firstly, optically active menthyl and neo-menthyl phos-phonoacetates were prepared and the reaction of their anions with aldehydes and ketones studied, modest asymmetric induction was observed. A chiral phosphonamide anion was also synthesised which shows good selectivity on reaction with ethyl bromide. Secondly, the reactions of aldehydes and ketones with chiral organolithium compounds were investigated. The best results were obtained with a chiral lithiated dithiane, when a ratio of (1:1.9) was ob

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2

Sugimoto, Hisashi. "Studies on Control of Stereo- and Regioselectivity in Conjugate Additions of Aldehydes Catalyzed by Axially Chiral Biaryl-Based Amines." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199123.

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3

Kaka, Naeem Shabbir. "Asymmetric synthesis of α-alkylated aldehydes using chiral enamines". Thesis, University of Oxford, 2008. http://ora.ox.ac.uk/objects/uuid:3a90d43d-8124-41ba-8ece-be714bdefee0.

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Direct generation of enantioenriched mono-α-alkylated aldehydes by intermolecular nucleophilic substitution is a general and long-standing problem in synthesis, and is of importance due to the diverse reactions such aldehydes undergo for introducing asymmetry into molecules. The work described in this thesis initially details the development of the first lithium amide capable of efficiently converting terminal epoxide into enamine functionality, where the latter also demonstrates effective C-alkylation activity. Not only addition to Michael acceptors, but more notably substitution using activa

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4

Cheeseman, Matthew D. "Temporary stereocentres for the asymmetric synthesis of chiral aldehydes." Thesis, University of Bath, 2005. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426294.

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5

Bi, Jie. "Addition of sulfonium ylides to chiral aldehydes : stereocontrol and its application in the total synthesis of swainsonine." Thesis, University of Bristol, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435735.

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6

Mans, Daniel J. "Exocyclic Stereocontrol via Asymmetric Hydrovinylation in the General Synthesis of Pseudopterogorgia Natural Products Stereoselective X-Y-Mediated Cyclization Studies of an Allene-Ynamide and an Allene-Aldehyde." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1203969383.

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7

Ramos, Ferronatto Gabriel. "Dynamic resolution of alpha-substituted dihydrocinnamic aldehydes. A new asymmetric synthesis of pharmaceutically important amine building blocks." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6081/.

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Crystallization-induced diastereoisomer transformation (CIDT) was successfully employed in the enantioselective synthesis of 2-alkyl-3-aryl-propan-1-amines. These products are seen as potentially useful building blocks in the field of asymmetric organic chemistry, notably for pharmaceutically relevant compounds. The procedure was based on a recently reported protocol for deracemization of dihydrocinnamic aldehydes in which enantiomerically enriched 1-(amino(phenyl)methyl)naphthalen-2-ol (Betti base) is employed as a resolving agent. Additionally, fenpropimorph, a biologically active substance

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8

Meyer, Luc. "Auxiliaires chiraux à centre d'aiguillage : nouveaux outils en synthèse asymétrique. Application à la synthèse d'α-aminoacides de configuration (R) ou (S)". Rouen, 1997. http://www.theses.fr/1997ROUES063.

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De nouveaux outils pour la synthèse asymétrique sont proposés : des auxiliaires chiraux à centre d'aiguillage (R,S). Le passage du (1R,2S,5R)-2-diméthylphénylméthyl-5-méthylcyclohexyl carbaldéhyde à l'imine correspondante du glycinate de méthyle, suivi de la déprotonation (diisopropylamidure de lithium), puis de l'alkylation par des halogénures d'alkyles conduit après hydrolyse à des α-aminoacides de configuration (R) avec des e. E. >98%. Il a été montré que pour obtenir les α-aminoacides de configuration (S), il n'était pas nécessaire d'inverser la totalité des centres stéréogéniques de l'ald

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9

Prasad, R. Shyam. "Chiral aldehyde enolate equivalents." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249580.

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10

Kunjapur, Aditya Mohan. "Microbial engineering for aldehyde synthesis." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98710.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 140-151).<br>Microbes have been engineered to produce many useful classes of chemicals from renewable carbon sources instead of from finite petroleum reserves. Aldehydes represent a class of chemicals that has been challenging to obtain using microbes given the rapid conversion of aldehydes into their corresponding alcohols that occurs naturally. Microbes are thought to have evolved numerous endogenous enzymes re

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