Synthesis p. 395 - 398 (1992)
Update date:2022-08-30
Topics:
Alcalde
Dinares
Perez-Garcia
Roca
The title 2-substituted benzimidazoles are prepared by a highly efficient one-pot procedure, cyclodehydration of the corresponding accessible carboxylic acids and 1,2-arylenediamines, using polyphosphoric acid as the catalyst and solvent in a condensation of the type found in the Phillips benzimidazole synthesis. The method has been adapted and proved to be extremely useful for 1-alkyl-(1H-benzimidazol-2-yl)pyridinium tetrafluoroborates with a methylene and vinylene interannular moiety.
View MoreJinan Jianfeng Chemical Co., Ltd
Contact:0086-531-88110457
Address:sales01(-a-t-)pharmachemm{dot}c+o+m
Wuhan Kemi-Works Chemical Co., Ltd
website:http://www.kemiworks.com
Contact:86-27-85736489
Address:Rm. 1503, No. 164, Jianghan North Rd., Wuhan, 430022 China
Contact:0086-29-89196322
Address:North of the Fifth Keji Road, Hi-Tech Industrial Zone, Xi'an City, Shaanxi Province, China
Zhejiang Chemicals Import & Export Corporation
Contact:86-571-87043088
Address:No.37,Qingchun Road,Hangzhou,China
Liaoning Yufeng Chemical Co.,Ltd.
Contact:86-0419-3418888
Address:The metallurgical industrial zone,shoushan town, Liaoyang, Liaoning, China
Doi:10.1021/acs.organomet.7b00258
(2017)Doi:10.1063/1.470520
(1995)Doi:10.1021/ja00061a036
(1993)Doi:10.1021/jm020929p
(2002)Doi:10.1016/j.ejmech.2018.03.019
(2018)Doi:10.1002/adsc.201000753
(2011)