Deoxygenation of α,β-unsaturated acylphenols through ethyl o-acylphenylcarbonates with Luche reduction
摘要:
An efficient protocol for deoxygenation of alpha,beta-unsaturated acylphenols through ethyl o-acylphenylcarbonates with Luche reduction is described. The reaction shows very good selectivity and tolerates a wide range of functionalities on alpha,beta-unsaturated acylphenols, giving corresponding 2-allylphenols in good to excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.
Catalytic, Enantioselective, Intramolecular Sulfenofunctionalization of Alkenes with Phenols
作者:Scott E. Denmark、David J. P. Kornfilt
DOI:10.1021/acs.joc.7b00295
日期:2017.3.17
The catalytic, enantioselective, cyclization of phenols with electrophilic sulfenophthalimides onto isolated or conjugated alkenes affords 2,3-disubstituted benzopyrans and benzoxepins. The reaction is catalyzed by a BINAM-based phosphoramide Lewis base catalyst which assists in the highly enantioselective formation of a thiiranium ion intermediate. The influence of nucleophile electron density, alkene
An efficient protocol for deoxygenation of alpha,beta-unsaturated acylphenols through ethyl o-acylphenylcarbonates with Luche reduction is described. The reaction shows very good selectivity and tolerates a wide range of functionalities on alpha,beta-unsaturated acylphenols, giving corresponding 2-allylphenols in good to excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.