Bulletin of the Chemical Society of Japan p. 539 - 544 (1989)
Update date:2022-09-26
Topics:
Saegusa, Yasuo
Watanabe, Tatsushi
Nakamura, Shigeo
A novel condensing agent, 3,3'-carbonylbis<5-phenyl-1,3,4-oxadiazole-2(3H)-thione> (3), was readily prepared by the reaction of 5-phenyl-1,3,4-oxadiazole-2(3H)-thione with trichloromethyl chloroformate in benzene.The reagent 3 was found to be very useful for the one-pot or direct preparation of amid, ester, thiol ester, uea, and carbonate under mild conditions.The one-pot or direct polycondensation of several dicarboxylic acids with aromatic diamines and of aromatic diamines using 3 proceeded smoonthly at ambient temperature to produce high-molecular-weight polyamides and polyureas, respectively.
View MoreAnhui New Star Pharmaceutical Development Co., Ltd
Contact:013956922763
Address:Floor 3, F9A, F Workshop, No.110 Kexue Road, High-Tech Development Zone, Hefei, Anhui ,China
Rudong Zhenfeng Yiyang Chemical Co., Ltd.
Contact:0513-84573047
Address:South Fengli Town, Rudong County, Jiangsu Province, China
shanghai Tauto Biotech Co., Ltd
website:http://www.tautobiotech.com/en/index.htm
Contact:+86-21-51320588 ext. 8025
Address:No. 326, Aidisheng Rd , Zhangjiang Hi-tech Park, Shanghai , P.R.CHINA
Hangzhou Pharma & Chem Co.,Ltd.
Contact:+86-571-87040515
Address:No,139Qingchun Rd
Hangzhou Taiyan Trading Co., Ltd(expird)
Contact:+86-13777583958
Address:NO.63, Xingyi Street, Xihu District, Hangzhou, Zhejiang, China
Doi:10.1246/cl.160427
(2016)Doi:10.1016/j.tetasy.2010.02.004
(2010)Doi:10.1016/j.tetlet.2010.03.007
(2010)Doi:10.1039/jr9580000146
(1958)Doi:10.1002/ardp.19893220711
(1989)Doi:10.1016/S0040-4039(01)80634-1
(1989)