Production of n-substituted (meth) acrylamides from (meth)...

Details Production of n-substituted (meth) acrylamides from (meth)... Production of n-substituted (meth) acrylamides from (meth)...

C - Chemistry, Metallurgy

07

D

260/554.1, 260/2

C07D 295/14 (2006.01) C07C 31/30 (2006.01)

Patent

CA 1221368

PRODUCTION OF N-SUBSTITUTED (METH)ACRYLAMIDES FROM (METH)ACRYLATES AND AMINES OVER A METAL ALKOXIDE CATALYST (D#80,209-F) ABSTRACT OF THE DISCLOSURE A one-step process for the preparation of N-sub- stituted (meth)acrylamides from the reaction of a (meth)acryl- ate ester and an amine over a catalytic amount of a metal alkoxide catalyst is described. These catalysts, such as stannous dimethoxide, lead dimethoxide, zinc dimethoxide, copper dimethoxide and bismuth tributoxide give high se- lectivity to the N-substituted (meth)acrylamides and little selectivity to the Michael adduct propionate ester, which would predominate in the absence of these catalysts. Also, these catalysts are less costly than organo metal catalysts commonly used.

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