Chemical and Pharmaceutical Bulletin p. 222 - 227 (1994)
Update date:2022-08-03
Topics:
Shen
Katayama
An alternative method to prepare 3-oxo-2-phenyl-3H-pyrazolo[1,5-a]indole starting from indoline-2-carboxylic acid was explored. The reaction with nucleophilic agents allowed us to introduce the properly substituted alkyl substituents at C-4 of the 4H-pyrazolo[1,5-a]indoles. The 2,3-dichloro-5,6- dicyano-p-benzoquinone (DDQ) oxidation of these products gave the 3-oxo-2- phenyl-3H-pyrazolo[1,5-a]indole derivatives. Selective keto-enol tautomerizations of these 1,5-diketo-monoene system were observed.
View MoreFUJIAN SHANSHUI CHEMICAL CORP.LTD.
Contact:+86-151-59920036
Address:Jinqiao Gareden, jo@fj-xinyi.com
Zibo Jujin Chemical Industry Co., Ltd.（Dongming Jujin Chemical Industry Co., Ltd. ）
Contact:+86-533-2975022
Address:No.99 Shanquan Road, Zhangdian District
MS( MAOSHENG )Chemical CO.,LTD
Contact:+86-519-82726678.82726378
Address:TAOXI INDUSTRY ZONE JINTAN
Hangzhou Sartort Biopharma Co., Ltd
website:http://www.sartort.com
Contact:86-571-87039693
Address:No. 57, Tech Park Road, Hangzhou, Zhejiang, China
Tianjin Chemsyntech Chemical Co., Ltd
Contact:+86-22-60872258
Address:Haitai green industry base in Tianjin, K1,5-601
Doi:10.1016/j.bmcl.2008.07.112
(2008)Doi:10.1002/anie.201605104
(2016)Doi:10.1021/jo801754k
(2008)Doi:10.1002/jhet.5570450531
(2008)Doi:10.1016/S0040-4020(01)87530-X
(1986)Doi:10.1039/b807512c
(2008)
