Heterocyclic Communications p. 449 - 452 (2008)
Update date:2022-09-26
Topics:
Truong, Phong
Kennedy, G. Davon
Vasquez, Pedro C.
Baumstark
Addition of methyl- or phenyllithium to 3,4,4,5-tetrasubstituted-4H- pyrazoles (1a-b) smoothly produced the extremely air-sensitive anions of 4,5-dihydro-3,4,4,5,5-pentasubstituted-1H-pyrazoles (2a-c) which were converted to the N-tosylated compounds 3a-c in low to very good yields by reaction with tosyl fluoride. The two-step process is a convenient one-pot route to 4,5-dihydro-N-tosyl-1H-pyrazoles.
Haitong Chemical Industrial Co.,Ltd.
website:https://www.haitonglongwin.com/
Contact:+86-022-66221018
Address:18-701, No.99, The 4th Street, TEDA,
Zibo Linzi Darong Fine Chemical Co., Ltd(expird)
Contact:86-532-67773200; 15689126900
Address:Qidu town,Linzi district,Zibo city,Shandong province,China
Wuhan Chemwish Technology Co., Ltd
website:http://www.chemwish.com/
Contact:+86-27-67849912
Address:Room 1311, Unit 2, Block1, Innovation Road East Lake High-tech Development Zone Wuhan, Hubei，P.R. China
Jiangyin Tenghua Import&Export Co.,Ltd.
Contact:+86-510-86263875
Address:Room 402-B,9 Yanling Road, Jiangyin,Jiangsu, China
Contact:+86-15850770348
Address:51 OF XIANGFANGCUN ROAD, Nanjing 210002, China
Doi:10.1007/s13738-016-0868-0
(2016)Doi:10.1080/00304940902958545
(2009)Doi:10.1080/10426500902930167
(2009)Doi:10.1021/jo1014382
(2010)Doi:10.1021/cc900112s
(2010)Doi:10.1021/jm00126a031
(1989)
