Catalytic alkylation of benzylic C–H bonds with 1,3-dicarbonyl compounds utilizing oxygen as terminal oxidant
摘要:
The oxidative alkylation of benzylic C-H bonds with 1,3-dicarbonyl compounds was developed using oxygen as the terminal oxidant in the presence of catalytic amounts of FeCl2, CuCl and NHPL (C) 2010 Elsevier Ltd. All rights reserved.
Arylboronic Acid Catalyzed <i>C</i>-Alkylation and Allylation Reactions Using Benzylic Alcohols
作者:Susana Estopiñá-Durán、Euan B. Mclean、Liam J. Donnelly、Bryony M. Hockin、James E. Taylor
DOI:10.1021/acs.orglett.0c02736
日期:2020.10.2
The arylboronic acid catalyzed dehydrative C-alkylation of 1,3-diketones and 1,3-ketoesters using secondary benzylic alcohols as the electrophile is reported, forming new C-C bonds (19 examples, up to 98% yield) with the release of water as the only byproduct. The process is also applicable to the allylation of benzylic alcohols using allyltrimethylsilane as the nucleophile (12 examples, up to 96% yield).