Photooxygenation of (R)-p-mentha-3,8(9)-diene and 1-isopropenyl-3,4-dihydronaphthalenes. Preparation of (R)-menthofuran, (R)-evodone and (.+-.)-chromolaenin
An effective electrochemical rearrangement reaction, both oxidant and metal catalyst-free, is presented to construct γ-keto sulfones containing a β-quaternary carbon center in this study. In the protocol, radicals are generated from benzenesulfonyl hydrazines, which cause 1,2-migrations of starting materials, 2-methylallyl alcohol derivatives, and formation of new C–C and C–S bonds. A series of aryl-migration
Electrocatalytic Access to Azetidines via Intramolecular Allylic Hydroamination: Scrutinizing Key Oxidation Steps through Electrochemical Kinetic Analysis
作者:Steve H. Park、Geunsu Bae、Ahhyeon Choi、Suyeon Shin、Kwangmin Shin、Chang Hyuck Choi、Hyunwoo Kim
DOI:10.1021/jacs.3c03172
日期:2023.7.19
regioselective generation of key carbocationic intermediates, which could directly undergo intramolecular C–N bond formation. The mechanistic investigations including electrochemical kinetic analysis suggest that either the catalyst regeneration by nucleophilic cyclization or the second electrochemical oxidation to access the carbocationic intermediate is involved in the rate-determining step (RDS) of our electrochemical