Catalytic Enantioselective Arylation of Glyoxylate with Arylsilanes: Practical Synthesis of Optically Active Mandelic Acid Derivatives
作者:Kohsuke Aikawa、Yūta Hioki、Koichi Mikami
DOI:10.1002/asia.201000522
日期:2010.11.2
a little does the trick! The catalytic enantioselective arylation using chiral dicationic palladium complexes provides a reliable and useful access to enantiomerically enriched mandelic‐acid derivatives. Significantly low catalyst loading (down to 0.002 mol %) as well as easy catalyst handling are the advantage of this practical method.
Access to Diarylmethanols by Wittig Rearrangement of <i>ortho-</i>, <i>meta-</i>, and <i>para-</i>Benzyloxy-<i>N</i>-Butylbenzamides
作者:R. Alan Aitken、Andrew D. Harper、Ryan A. Inwood、Alexandra M. Z. Slawin
DOI:10.1021/acs.joc.1c03160
日期:2022.4.1
promoter of the [1,2]-Wittig rearrangement of aryl benzyl ethers and thus allow the two-step synthesis of isomerically pure substituted diarylmethanols starting from simple hydroxybenzoic acid derivatives. The method is compatible with a wide range of functional groups including methyl, methoxy, and fluoro, although not with nitro and, unexpectedly, is applicable to meta as well as ortho and para isomeric
Application of Solid Me<sub>3</sub>SiZnI for the Synthesis of Aryl and Alkyl Trimethylsilanes
作者:Anirban Ganguly、Revathi Chandrasekaran、Bala S. S. Balamurugan、Ramesh Rasappan
DOI:10.1002/adsc.202301298
日期:2024.3.19
group compatibility renders silylzinc reagents desirable; however, their development is hindered by their synthesis using pyrophoric silyllithium and dissolved lithium salts. Our solid Me3SiZnI circumvents these limitations and herein, we demonstrate its significance in the cross-coupling of aryl and alkyl bromides.