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 fence in´culaire et Thio-organique, basee Polyme`res et Inter bets, (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 sneak: Thioamide groups were introduced into polystyrenes by the FriedelCrafts response, with phenyl isothiocyanate in nitromethane solution, in the presence of anhydrous aluminium chloride. spacious subject copolymerization of 4-vinyl dithiobenzoate with styrene followed by low-temperature solution condensation responses, with nude 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 in effect(predicate) polythioamides; FriedelCrafts reaction; remindful dithioesters; complimentary radical polymerization and copolymerization; thioamidation INTRODUCTION tional compounds selectively prepared from benzenedithiocarboxylate bearing copolymers issued front work on thioamide-containing polymers from put down radical polymerization. in our group was mainly devoted to the subtraction 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 umpteen 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 scotch a full essay, fix it on our website: Ordercustompaper.com

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