Helvetica Chimica Acta p. 413 - 419 (1980)
Update date:2022-07-30
Topics:
Seha, Zdenek
Weis, Claus D
The preparation of benzoxazoles by a facile one-pot reaction is reported.The reaction of carboxylic acids with 2-chloro-N-methyl-Δ1-pyrrolinium chloride in an excess of N-methyl-2-pyrrolidone afforded carboxylic acid chlorides which were converted subsequently to their 2-hydroxyanilides by addition of 2-aminophenols.Cyclization of the 2-hydroxy-anilides at elevated temperatures furnished the benzoxazoles in high yield and purity.
View MoreNanJing KaiHeng Chemical CO., LTD.
Contact:+86-25-85768391
Address:RM.1704, D, WANDA PLAZA, NO.110, MIDDLE JIANGDONG ROAD, NANJING, CHINA
HANGZHOU TOYOND BIOTECH CO., LTD
Contact:+86-571-86965177
Address:No. 189, Fengqi East Road, Hangzhou, China
Airsea(Taizhou) Pharmaceutical Limited
Contact:+86-576-88057622
Address:Dubei, Duqiao, Linhai, Taizhou, Zhejiang, China Zip: 317016
Contact:+86-531-58668191 58668193 58668196 58661173
Address:No 55,Beixiaoxinzhuang West Street,Jinan City, Shandong Province
Contact:+86-21-56338808
Address:799 Dunhuang Road, Putuo
Doi:10.1016/S0957-4166(00)00208-1
(2000)Doi:10.1016/S0040-4039(00)00776-0
(2000)Doi:10.1021/ja001975m
(2000)Doi:10.1016/S0968-0896(00)00086-9
(2000)Doi:10.1080/10426509908044985
(1999)Doi:10.1021/jo00208a004
(1985)