Some new s-, s,s- and n,s-substituted 2-nitrodienes and butadienyl-substituted piperazines

Abstract

Nitrodiene 1 reacted with 2a,b and gave the novel compounds 3a,b, 4a, b, and 5a. Monosubstituted diene compound 3a gave the compounds 9a with morpholine, 11a with piperidine, and 13a with homopiperazine. Compound 3a gives the thioether compound 15 by the reaction with the dithiol (HS-(CH2)(2)-O-(CH2)(2)-SH) in ethanol containing sodium hydroxide.