Synthesis and some reactions of the N-tosyl derivative of indoles and 2,3-dihydrocarbazol-4(1H)-one.

The preparation and some reactions of the N-tosyl derivative of 3-(2?- nitropropenyl)indole (1), indole-3-carbaldehyde (2), indole-3- glyoxylamide (3), and 2,3-di-hydrocarbazol-4(1H)-one (7) are described. The N-tosylnitropropenyl derivative (1) was converted into α-methyl-1- tosyltryptamine, and the reaction of 2,3-dihydro-9-tosyl-carbazol-4(1H)-one (7) with ethoxyethynylmagnesium bromide and in the Mannich and Cope-Knoevenagel reactions are described.