Process for the preparation of oxime methacrylates

摘要

The prepn. of methacryloyl esters of ketoximes of formula (I) comprises: (i) reacting a ketoxime of formula (II) with methacrylic anhydride (III): R1R2C=N-O-C(=O)-C(CH3)=CH2 (I) R1R2C=N-OH (II) R1, R2 = 1-4C alkyl; or R1, R2 = 5-12-membered alicyclic ring. Also claimed are: (a) acetone-oxime methacrylate (IA); (b) cyclohexanone-oxime methacrylate (IB); and (c) use of the methacryloyl ester of ketoxime as a monomer in polymerisation.