Process for the preparation of 2-cyano-3, 3-diarylacrylates

Details Process for the preparation of 2-cyano-3, 3-diarylacrylates Process for the preparation of 2-cyano-3, 3-diarylacrylates

C - Chemistry, Metallurgy

07

C

260/477.3

C07C 253/00 (2006.01) C07C 255/41 (2006.01)

Patent

CA 2013059

Process for the preparation of 2-cyano-3.3-diarylacrylates Abstract of the disclosure: The preparation of 2-cyano-3,3-diarylacrylates I Image (I), (in which Ar1 and Ar2 are aromatic radicals and R is an aliphatic radical having from 3 to 30 carbon atoms) by reacting a 2-cyano-3,3-diarylacrylate II Image (II), (in which R1 is methyl or ethyl) with an alcohol III R-OH (III) in the presence of a basic catalyst with removal of the alcohol R1-OH formed. The esters of formula I are valuable UV absorbing agents for, say, plastics materials.

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