A mechanistic investigation of the carbohydrate/DBU cocatalyzed enantioselective diboration of alkenes is presented. These studies provide an understanding of the origin of stereoselectivity and also reveal a strategy for enhancing reactivity and broadening the substrate scope.
A mechanistic investigation of the carbohydrate/DBU cocatalyzed enantioselective diboration of alkenes is presented. These studies provide an understanding of the origin of stereoselectivity and also reveal a strategy for enhancing reactivity and broadening the substrate scope.
Nickel-Catalyzed Heck-Type Reactions of Benzyl Chlorides and Simple Olefins
作者:Ryosuke Matsubara、Alicia C. Gutierrez、Timothy F. Jamison
DOI:10.1021/ja209235d
日期:2011.11.30
Nickel-catalyzed intermolecular benzylation and heterobenzylation of unactivated alkenes to provide functionalized allylbenzene derivatives are described. A wide range of both the benzylchloride and alkene coupling partners are tolerated. In contrast to analogous palladium-catalyzed variants of this process, all reactions described herein employ electronically unbiased aliphatic olefins (including
A ternary and synergistic chiral primary amine/palladium /p-hydroquinone catalysis was developed to facilitate oxidative asymmetric allylic C−H alkylation under aerobic conditions with high regio- and enantioselectivity.
作者:Lu Yan、Yan Meng、Fredrik Haeffner、Robert M. Leon、Michael P. Crockett、James P. Morken
DOI:10.1021/jacs.7b12316
日期:2018.3.14
A mechanistic investigation of the carbohydrate/DBU cocatalyzed enantioselective diboration of alkenes is presented. These studies provide an understanding of the origin of stereoselectivity and also reveal a strategy for enhancing reactivity and broadening the substrate scope.