Title: Process for catalytic esterification of maleopimaric acid
Application Number: 98113391 Application Date: 1998.10.27
Publication Number: 1232020 Publication Date: 1999.10.20
Approval Pub. Date: Granted Pub. Date: 2001.10.24
International Classifi-cation: C07C67/08,C07C69/74,C09F1/04
Applicant(s) Name: Guangzhou Inst. of Chemistry, Chinese Academy of S Address: 510650
Inventor(s) Name: Chang Dongliang, Ha Chengyong
Attorney & Agent: li jilan
Abstract:
     A process for catalytic esterification of rosin and its derivatives to widen the usage of rosin, especially to efficiently synthesize maleopimarate, features use of stannous oxalate as esterifying catalyst. Its advantages are high catalytic reaction speed and yield, no corrosion of equipment, high quality of product and low cost.
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