Study of the Chemoselectivity in the Aminolysis Reaction of Methyl Acrylate Catalysed by Lipase B fromCandida antarctica
作者:Oliver Torre、Vicente Gotor-Fernández、Ignacio Alfonso、Luis Fernando García-Alles、Vicente Gotor
DOI:10.1002/adsc.200505025
日期:2005.6
The aminolysisreaction of methylacrylate (MA) with N,N-dimethyl-1,3-propanediamine (DMAPA) in organic solvents has been optimised using lipaseB from Candida antarctica (CAL-B) as biocatalyst. A kinetic study about the influence of the reactant concentrations, organic solvent, temperature and enzyme form has been developed focused on minimising the formation of the Michael addition products. The
New catalyst compositions for the production of polyurethanes
申请人:AIR PRODUCTS AND CHEMICALS, INC.
公开号:EP1038894A2
公开(公告)日:2000-09-27
A composition having the formula:
wherein R is a linear alkyl, branched alkyl, cycloalkyl, polycyclic alkyl, alkylaminoalkyl, or alkyloxyalkyl group having 1 to 20 carbon atoms and at least one primary, secondary, or tertiary amino functional group. The composition is effective as a catalyst in the production of polyurethanes.
一种组合物,其式如下
其中 R 是具有 1 至 20 个碳原子的直链烷基、支链烷基、环烷基、多环烷基、烷基氨基烷基或 烷氧基烷基,以及至少一个伯、仲或叔氨基官能团。该组合物可作为生产聚氨酯的催化剂。
Process for the synthesis of polyurethane using reactive amine catalysts