Journal of Heterocyclic Chemistry p. 221 - 224 (1997)
Update date:2022-08-05
Topics:
Akcamur, Yunus
Sener, Ahmet
Ipekoglu, Alemdar Mustafa
Kollenz, Gert
The 1H-pyrazole-3-carboxylic acid 2 or its remarkably stable acid chloride 3 can easily be converted into the corresponding ester or amide derivatives 4 or 5, respectively, from reaction with alcohols or N-nucleophiles. Pyrazolo[3,4-d]pyridazines 6a,b are obtained from cyclocondensation reactions of the pyrazoles 2 and 3, respectively, with phenylhydrazine or hydrazine hydrate, while 6c is formed in an one-pot procedure from the furan-2,3-dione 1 and hydrazine hydrate.
View MoreLianyungang Ningkang Chemical Co., Ltd
Contact:.+86-518-88588008
Address:http://www.chemnk.com
Zhejiang Haizhou Pharmaceutical Co., Ltd.
website:https://www.haizhoupharma.com/
Contact:+86-576-88221016
Address:No. 19, Donghai 5th Avenue, Yanhai Industrial Zone, Linhai, Zhejiang, China
Geen Chemical Technology Co., Ltd
Contact:86-769-21660847
Address:1408, Yingfeng Commercial Center, Nancheng District
Shanghai PotentPharm Science and Technology Co.,Ltd
Contact:86-021-51969655
Address:Unit B, Building 18, No.300, Chuantu Rd,Pudong District, Shanghai 201202, China
website:http://www.chemdow.com
Contact:0086-10-82435335
Address:Room 401,Unit 3,4th Floor,Shangdijiayuan,Shangdi East Road, Haidian District,Beijing
Doi:10.1021/ja963823q
(1997)Doi:10.1021/jo961454a
(1997)Doi:10.1016/j.tetlet.2004.09.145
(2004)Doi:10.1055/s-1997-1188
(1997)Doi:10.1002/ardp.201200265
(2013)Doi:10.1021/ja01173a059
(1949)
