Synthesis of Some New Spiro, Isolated and Fused Heterocycles Based on 1<i>H</i>-indole-2-One
作者:T. I. El-Emary、R. A. Ahmed、E. A. Bakhite
DOI:10.1002/jccs.200100134
日期:2001.10
The reaction of 3-benzoylcyanomethylidine-1(H)-indole-2-one (1) with a variety of active methylene compounds, thioglycolic acid, glycine, hydrazine hydrate and phenyl hydrazine led to the formation of compounds 4a-d-10. 3-Thiosemicarbazide-1(H)-indole-2-one 2 on reaction with α-halocarbonyl compounds gave compounds 11a-c, 12a-c. The latter compounds on heating with phosphoryl chloride, cyclization