Synthesis and insecticidal activity of 5-amino-7-aryl-6-cyano-3-substituted-thiazolo[4,5-b]-2,3,4,7-tetrahydropyridine-2-thione and 7-aryl-6-cyano-3-substituted-2-thioxo-thiazolo [4,5-b]-2,3,4,5,6,7-hexahydropyridin-5-one
Mh. Khan et al., Synthesis and insecticidal activity of 5-amino-7-aryl-6-cyano-3-substituted-thiazolo[4,5-b]-2,3,4,7-tetrahydropyridine-2-thione and 7-aryl-6-cyano-3-substituted-2-thioxo-thiazolo [4,5-b]-2,3,4,5,6,7-hexahydropyridin-5-one, I J CHEM B, 37(10), 1998, pp. 1069-1074
Citations number
12
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY
5-Amino-7-aryl-6-cyano-3-substituted-thiazolo[4, 5-b]-2, 3, 4, 7-tetrahydro
pyridine-2-thione 3 and 7-aryl-6-cyano-3-substituted-2-thioxo-thiazolo[4,5-
b]-2, 3, 4, 5, 6,7-hexahydro pyridin-5-one 4 have been prepared by Michael
addition between alpha,beta-unsaturated ketones 2 and malononitrile /ethyl
cyanoacetate in the presence of excess ammonium acetate. The insecticidal a
ctivity against 5 litura and T. urticeae of the title compounds have been s
creened.