Patent ID: 6417392
Filing Date: 2002-07-09
Classification: B01D,C07C,Y02P

Abstract:
A method for producing an alkylamino(meth)acrylate represented by the formula (3): the symbols are the same as below, which comprises the steps of(i) carrying out, in the presence of a catalyst, the reaction of transesterification of an alkyl(meth)acrylate represented by the formula (1): â€ƒwherein R1 is a hydrogen atom or methyl group, R2 an alkyl group having 1 to 4 carbon atoms, with an alkylamino alcohol represented by the formula (2): wherein R3 is a hydrogen atom or alkyl group having 1 to 8 carbon atoms, R4 an alkyl group having 1 to 8 carbon atoms, and R5 an alkylene group having 1 to 4 carbon atoms, (ii) causing an alkyl alcohol by-produced during the transesterification to be distilled in the form of an azeotropic mixture with the alkyl(meth)acrylate, and (iii)purifying the resultant azeotropic mixture with a weekly acidic ion-exchange resin thereby recovering the alkyl alcohol.