Process for preparing hindered amine light stabilizers

Details Process for preparing hindered amine light stabilizers Process for preparing hindered amine light stabilizers

C - Chemistry, Metallurgy

07

D

C07D 211/46 (2006.01)

Patent

CA 2064135

PROCESS FOR PREPARING HINDERED AMINE LIGHT STABILIZERS ABSTRACT OF THE DISCLOSURE Disclosed is a process for the preparation of hindered amine light stabilizers by reacting (a) an alkyl substituted- 4-hydroxypiperidine with (b) a dicarboxylic acid ester, in the presence of a catalyst system comprising a basic inorganic compound and a polar aprotic organic compound.

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