Synthesis Of Thioamide

Synthesis of Thioamide-Containing Polystyrenes by FriedelCrafts Reaction and by Thioamidation of (co)Polydithioesters GHEZALLA TABAK, THI-NHA`N PHAM, GUY LEVESQUE*, RACHID HARAOUBIA† Laboratoire de Chimie jetty´culaire et Thio-organique, conclavee Polyme`res et Inter constructions, (UMR CNRS 6507) , Universite´ de Caen, Institut des Sciences de la Matie`re et du Rayonnement (ISMRA) 6 boulevard du Mare´chal Juin, F-14050 Caen, France Received 4 February 1997; accepted 24 June 1997 remove: Thioamide groups were introduced into polystyrenes by the FriedelCrafts response, with phenyl isothiocyanate in nitromethane solution, in the presence of anhydrous aluminium chloride. long bow copolymerization of 4-vinyl dithiobenzoate with styrene followed by low-temperature solution condensation reactions, with stripped-down of amines in N,N-dimethylformamide, offered another man-made route to (co)polymers containing thioamine groups in the face chains without crosslinking. q 1998 John Wiley & Sons, Inc.

J Polym Sci A: Polym Chem 36: 117127, 1998 Keywords: side-chain operative polythioamides; FriedelCrafts reaction; reminiscent dithioesters; complimentary radical polymerization and copolymerization; thioamidation INTRODUCTION tional compounds selectively lively from benzenedithiocarboxylate bearing copolymers issued preceding work on thioamide-containing polymers from disengage radical polymerization. in our group was mainly devoted to the minus Leuckart12,13 was the first to use aluminium of main-chain polythioamides from diamines and chloride as the catalyst in the reaction of isocyabis( dithioesters).110 Levesque et al. have prepared nates with aromatic hydrocarbons. However, the umteen aliphatic polythioamides from bis(dithio- corresponding anilide was obtained in low yield. ester)s and diamines.16,9 and some aromatic and The use of phenyl isothiocyanate was described semi-aromatic polythioamides from tetrathioter- by Gatterman in 1892,14 and the employment of...If you want to weather sheet a full essay, come in it on our website: Ordercustompaper.com

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