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Issue 60, 2019
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Recent advances in the catalytic asymmetric alkylation of stabilized phosphorous ylides

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Abstract

The Wittig reaction is a reliable method for synthesizing alkenes from phosphorous ylides (P-ylides) and carbonyls, and is thus widely applied in medicine and pharmaceutical production. Among them, asymmetric Wittig reactions using chiral P-ylides are believed to be a conventional pathway towards chiral alkenes. Obviously, the key of this transformation is the efficient construction of chiral P-ylides. Over the past decade, the coupling of the in situ generated chiral P-ylides through the catalytic asymmetric alkylation of easily available P-ylides and the subsequent Wittig reaction with carbonyls has already been achieved, allowing the efficient and selective synthesis of versatile chiral alkenes. This review highlights these impressive advances according to the catalysis type, and the general mechanisms and stereochemical inductions are briefly discussed as well. We hope this article will be a useful reference and inspiration for those who are exploring new methods and new applications of chiral P-ylides.

Graphical abstract: Recent advances in the catalytic asymmetric alkylation of stabilized phosphorous ylides

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Article information


Submitted
12 Apr 2019
Accepted
13 May 2019
First published
17 May 2019

Chem. Commun., 2019,55, 8716-8721
Article type
Feature Article

Recent advances in the catalytic asymmetric alkylation of stabilized phosphorous ylides

K. Zhang, L. Lu and W. Xiao, Chem. Commun., 2019, 55, 8716
DOI: 10.1039/C9CC02831E

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