S. Kamila, E. Biehl
Dec 1, 2004
Citations
0
Influential Citations
13
Citations
Journal
Heterocycles
Abstract
Benzothiopyrano[2,3-b]indoles were prepared by the cyclization of 1,3-dihydroindole-2-thiones with various dienophiles. The 1,3-dihydroindole-2-thiones were readily synthesized by the reaction of oxindole with P 2 S 5 followed by a piperidine-mediated condensation of the resulting thioindole with a suitable aromatic aldehyde.