One-Pot Synthesis of 2-Substituted 4-Aryl-4,5-dihydro-3,1-benzoxazepines from 2-(2-Aminophenyl)-1-arylethanols via Dehydration of the Corresponding Amides
摘要:
AbstractAn efficient method for the preparation of 2‐substituted 4‐aryl‐4,5‐dihydro‐3,1‐benzoxazepine derivatives under mild conditions has been developed. The reaction of 2‐(2‐aminophenyl)ethanols 1 with acid chlorides in the presence of excess Et3N in THF at room temperature gave the corresponding N‐acylated intermediates 2, which were dehydrated by treatment with POCl3 to give 2‐substituted 4‐aryl‐4,5‐dihydro‐3,1‐benzoxazepines 3 in a one‐pot reaction.
Palladium- or ruthenium-catalyzed synthesis of 2-phenylindoles
作者:Taeko Izumi、Toshiko Yokota
DOI:10.1002/jhet.5570290509
日期:1992.8
presence of palladium complex as catalyst. In the reaction, the ruthenium hydride complex showed more effective catalytic activities. 2-Phenylindoles were also prepared from the corresponding α-phenyl-2-aminophenethylalcohols and allyl methyl carbonate by ruthenium-catalyzed cyclization.
申请人:RESEARCH ASSOCIATION FOR
UTILIZATION OF LIGHT OIL
公开号:EP0182256B1
公开(公告)日:1992-10-07
US4757152A
申请人:——
公开号:US4757152A
公开(公告)日:1988-07-12
One-Pot Synthesis of 2-Substituted 4-Aryl-4,5-dihydro-3,1-benzoxazepines from 2-(2-Aminophenyl)-1-arylethanols via Dehydration of the Corresponding Amides
AbstractAn efficient method for the preparation of 2‐substituted 4‐aryl‐4,5‐dihydro‐3,1‐benzoxazepine derivatives under mild conditions has been developed. The reaction of 2‐(2‐aminophenyl)ethanols 1 with acid chlorides in the presence of excess Et3N in THF at room temperature gave the corresponding N‐acylated intermediates 2, which were dehydrated by treatment with POCl3 to give 2‐substituted 4‐aryl‐4,5‐dihydro‐3,1‐benzoxazepines 3 in a one‐pot reaction.