Journal of Heterocyclic Chemistry p. 889 - 894 (1999)
Update date:2022-08-03
Topics:
Diez-Barra, Enrique
De La Hoz, Antonio
Sanchez-Migallon, Ana
Elguero, Jose
We report a study on the quaternization and dequaternization of pyrazoles by conventional heating and microwave irradiation in solvent-free conditions. Microwave irradiation produces an acceleration in the quaternization rate and a rapid equilibration between quaternized and non quaternized products. Dequaternization is also more rapid and a change on the selectivity is observed using symmetric pyrazolium salts.
View MoreZiBO KuoDing Trade company Ltd
website:http://www.sdzbkd.com
Contact:86-13361591822
Address:GongQingTuan road
Contact:+86-27-85733560
Address:NO.308,QINGNIAN RD.,WUHAN,CHINA
Yixing Bluwat Chemicals Co., Ltd.
Contact:+86 510 87821568
Address:Yongan Road, Yixing Chemical Industrial Park, Yixing, Jiangsu, China
Beijing ZhongDaXinHe Chemical Product Co.,Ltd(expird)
Contact:010-52876516
Address:tongzhoubeiyuan
Contact:852-27701081
Address:Room 2509, New Tech Plaza, 34 Tai Yau St., San Po Kong, HK
Doi:10.3390/molecules23082015
(2018)Doi:10.1002/ardp.201600368
(2017)Doi:10.1246/cl.1987.219
(1987)Doi:10.1016/j.bmc.2011.07.014
(2011)Doi:10.1002/cphc.201402674
(2015)Doi:10.1021/ja01127a032
(1952)
