Dual Transition Metal Electrocatalysis: Direct Decarboxylative Alkenylation of Aliphatic Carboxylic Acids
作者:Jiaqing Lu、Yan Yao、Liubo Li、Niankai Fu
DOI:10.1021/jacs.3c08839
日期:2023.12.13
the reaction. This new alkenylation protocol has been successfully demonstrated in direct modification of naturally occurring complex acids and is amenable to the enantioselective decarboxylative alkenylation of arylacetic acid. Mechanistic studies, including a series of controlled experiments and cyclic voltammetry data, allow us to probe the key intermediates and the pathway of the reaction.
Various allyl ethers were converted into the corresponding N-allylcarbamates usingchlorosulfonylisocyanate (CSI) via the stable allylic carbocation rather than β-lactam through [2+2] cycloaddition. The reaction of cinnamyl methyl ether with CSI afforded only methyl N-cinnamylcarbamate at 0°C, but at 20°C, it produced a mixture of methyl N-cinnamylcarbamate and methyl N-(1-phenylprop-2-enyl)carbamate
Relay Catalysis by a Metal-Complex/Brønsted Acid Binary System in a Tandem Isomerization/Carbon−Carbon Bond Forming Sequence
作者:Keiichi Sorimachi、Masahiro Terada
DOI:10.1021/ja807591m
日期:2008.11.5
one-pot tandem isomerization/carbon-carbon bond forming sequence catalyzed by a ruthenium complex/Brønstedacidbinarysystem is demonstrated. The method enables the use of readily available allylamides to deliver reactive imines under relaycatalysisusing a binary catalytic system. Subsequent Brønstedacid catalyzed carbon-carbon bond forming reactions of the generated imines with nucleophilic components