Heterocycles p. 2163 - 2172 (1990)
Update date:2022-07-29
Topics:
Singh, Baldev
Lesher, George Y.
The aldol condensation product (4) of 4-acetylpyridine (2) and diethyl mesoxalate (3) was converted to pyridazinecarboxylic acid hydrazide (6). Curtius reaction of 6 gave aminopyridazinone (7). The condensation of (4-pyridinyl)glyoxal (17) with aminomalonamide (9) yielded pyrazinecarboxamide (18) which was transformed to aminopyrazinone (19) by the Hofmann reaction. Curtius reaction of l,2,4-triazinone-5-carboxylic acid (21b) gave aminotriazinone (22). Demethylation of methoxypyrimidine (29) prepared from methyl 2-methoxyformylacetate (25) and isonicotinamidine (26) gave pyrimidinol (30).
View MoreContact:+86-20-32051076
Address:1105,Building A, International Business Incubator,Science City
Shanghai Yuanding Chem. Sci. & Tech. Co., Ltd.
website:http://www.shydtec.com
Contact:86-21-57721279
Address:Science and Technology Park, Songjiang District, Shanghai, China
CHANGYI CITY FENGRUN FINE CHEMICAL CO.,LTD
website:http://www.fengrunhuagong.com
Contact:+86-536-7869976
Address:Changyi Coastal Economic Development Zone
shanghai Tauto Biotech Co., Ltd
website:http://www.tautobiotech.com/en/index.htm
Contact:+86-21-51320588 ext. 8025
Address:No. 326, Aidisheng Rd , Zhangjiang Hi-tech Park, Shanghai , P.R.CHINA
Dezhou Longteng Chemical Co., Ltd.
website:http://www.sodium-methoxide.cn/
Contact:0086-18866052283
Address:Xinhua Industrial Zone, Dezhou City, Shandong Province, China
Doi:10.1016/j.tet.2011.07.047
(2011)Doi:10.1021/jo00012a021
(1991)Doi:10.1016/j.poly.2017.02.008
(2017)Doi:10.1016/j.tetlet.2011.08.007
(2011)Doi:10.1016/j.bmc.2011.07.033
(2011)Doi:10.1021/jo2012384
(2011)
