Mono (thio) substituted dienes 1a-1b gave compounds 3a-c and 5d-g with piperazine and piperidine derivatives in dichloromethane. Compounds 8, 9, and 10 were obtained from the reactions of perchlorobutadiene (6) with 1, 4-butanedithiol (7) in ethanol in the presence of sodium hydroxide. Compounds 12a-b, 13a-b were obtained from the reactions of perchlorobutadiene (6) with allylmercaptan (CH 2= CH--CH 2--SH) and mercaptoethanol ( ...