Chemistry of Heterocyclic Compounds p. 640 - 644 (1980)
Update date:2022-08-03
Topics:
Stekhova, S. A.
Zagulyaeva, O. A.
Lapachev, V. V.
Mamaeva, V. P.
The structures of pyrazinoyl-, 3-pyridazinoyl-, 4-pyrimidoyl-, and 2-, 3-, and 4-pyridoylacetic esters were studied by means of IR, NMR, and 1H and 13C NMR spectroscopy and quantum-chemical calculations (Pariser-Parr-Pople and CNDO/2).The effect of solvents (including strongly and weakly basic solvents) on the position of the tautomeric equilibria of these β-keto esters was studied.The ?+ constants for the keto and enol fragments were estimated by means of quantum-chemical calculations and 13C NMR spectroscopy.
View MoreContact:+86-511-88790000
Address:338 North Yushan Rd, Zhenjiang, Jiangsu 212016
Tianjin Crest Pharmaceutical R&D Co., Ltd. （Tianjin Yao Technology Development Co., Ltd.）(expird)
Contact:+86-22-66211386
Address:Building B5-405, No, 80 4th Avenue, TEDA, Tianjin, China P.R. 300457
JIN TAN CHENG'EN CHEMICAL CO.,LTD.
Contact:86-519-82116250
Address:NO.102，village Dongfang，conomic development zone
Anyang Double Circle Auxiliary CO.,LTD
Contact:0086-134 6082 4403
Address:dongfeng road, anyang city, henan province,china
Arshine Pharmaceutical Co., Limited
website:http://www.cnarshine.com
Contact:0731-88503671
Address:Room 1109.Block C3, Lugu Enterprise Plaza,No.27 Wenxuan Road,Changsha National Hi-Tech Industrial Development Zone,Hunan ,P.R.China
Doi:10.1016/j.ica.2004.03.018
(2004)Doi:10.1039/b809464k
(2008)Doi:10.1021/jo000024o
(2000)Doi:10.1002/chem.202101436
(2021)Doi:10.1016/S0040-4020(01)83123-9
(1980)Doi:10.1016/S0040-4039(00)72147-2
(1975)
