NOVEL SYNTHESIS OF THIENO[2,3-C]PYRAZOLES AND THIENO[2,3-D]PYRIMIDINES

Citation
Vk. Ahluwalia et al., NOVEL SYNTHESIS OF THIENO[2,3-C]PYRAZOLES AND THIENO[2,3-D]PYRIMIDINES, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 35(7), 1996, pp. 715-717
Citations number
9
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
03764699
Volume
35
Issue
7
Year of publication
1996
Pages
715 - 717
Database
ISI
SICI code
0376-4699(1996)35:7<715:NSOTAT>2.0.ZU;2-F
Abstract
Chloro-4-formyl-3-substitued-1-phenyl-1H-pyrazoles (1a-c) and 1, 3-dia ryl-6-chloro-5-formyl-1, 3-dihydro-4-oxo-2-thioxopyrimidines (2a-f) on condensation with methyl thioglycolate furnish the corresponding meth yl l-1-phenyl-1H-thieno[2,3-c]pyrazole-5-carboxylates (4a-c) and methy l 1,3-diaryl-1, 3-dihydro-4-oxo-2-thioxothieno[2, 3-d]pyrimidine-6-car boxylates (5a-f) in excellent yields.