Preparation and spectral properties of novel N,S-substituted trichloronitrodienes

The s-substituted nitrodienes were obtained by the reactions of polyhalo-3-nitrobutadiene 1 with some s-nucleophiles [4-(tert-butylbenzyl)thiol,4-chlorophenylthiol,ethylthiol,and cyclopentylthiol] in directly at room temperature. n,s-substituted trichloronitrodienes were synthesized from the reactions of the s-substituted nitrodienes with some piperazines in dichloromethane at room temperature. their structures were characterized by microanalysis,fourier transform infrared spectroscopy (ft-ir),1h nuclear magnetic resonance (1h nmr),13c nuclear magnetic resonance (13c-nmr) and mass spectrometry (ms). the high temperature nmr technique was used for determination of methylene protons of piperazine ring in the new compound [4-(1-(2-furoyl)piperazin-1-yl]-4-(4-tertbutylbenzyl-sulfanyl)-polyhalo-3-nitro-1,3-butadiene at 45�c and 100�c in dmso. � 2016,chemical society of pakistan. all rights reserved.