DEGANI I.; DOLCI M.; FOCHI R., SYNTH. COMMUN., 1980, 10, NO 2, 161-166
作者:DEGANI I.、 DOLCI M.、 FOCHI R.
DOI:——
日期:——
US4397942A
申请人:——
公开号:US4397942A
公开(公告)日:1983-08-09
Asymmetric Organocatalyzed Friedel–Crafts Reaction of Trihaloacetaldehydes and Phenols
作者:David Svestka、Jan Otevrel、Pavel Bobal
DOI:10.1002/adsc.202200180
日期:2022.7.5
Herein we report the asymmetric organocatalyzed method for the Friedel–Craftsreaction between activatedphenols and trihaloacetaldehydes. A three-phase screening including 41 compounds was employed to identify a catalyst structure based on 3,5-dinitrobenzamide of 9-amino-epi-cinchonidine as the lead catalytic molecule. Under the optimized reaction conditions, the above catalyst offered trihalohydroxyalkylated