Ketoken gem-dithiols and trithiones: synthesis and study of the behavior towards dipole reagents; synthesis of some nitrogen heteroaromatics

SE Zayed

Index: Zayed, Salem E. Phosphorus, Sulfur and Silicon and Related Elements, 1996 , vol. 108, # 1-4 p. 7 - 13

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Citation Number: 3

Abstract

Abstract The behavior of ketoken gem-dithiols towards active methylene and methyl groups resulted in the formation of thiopyrano-dihydrocaumarine derivatives IIIa, b via cyclocondensation reaction between substituted 4-dihydrocyclohexanone Ia, b. N- phenylpyrazoline derivative VI was also formed through reaction of gem-dithiol IV with malonic acid followed by phenyl hydrazine. Pyridopyridazine derivative XII could also ...