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 chemipioneer pharmaceutical & technology Co., LTD
website:http://www.chemipioneer.com.cn
Contact:+86-25-52685700
Address:Room 305,A Block,Biological-Medicine Building,Business Start-up Center,Xin-ke 1st Road, High-tech development zone,Nanjing city,Jiangsu Province, China
Contact:732.938.2777
Address:5012 Industrial Road Farmingdale, NJ 07727
Chengda Pharmaceuticals Co., Ltd.
Contact:+86-573-84601188
Address:hengshan Road 5# in Jiashan, zhejiang
Contact:886 2 2541 0022
Address:8 Fl., No. 11, Sec. 1, Chung Shan North Rd., Taipei, Taiwan R.O.C.
NINGBO YINZHOU PRECISE COLOR CO.,LTD.
Contact:86-574-88139809 86-574-83033159
Address:Qiming Road,Yinzhou,Ningbo,China
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)