Method for producing carboxylic anhydride and arylboronic acid compound
申请人:Ishihara Kazuaki
公开号:US08735582B2
公开(公告)日:2014-05-27
When phthalic acid is heated in heptane under azeotropic reflux conditions in the presence of a catalytic amount of an arylboronic acid compound (such as 2,6-(diisopropylaminomethyl)phenylboronic acid or 2,6-bis(diisopropylaminomethyl)phenylboronic acid), phthalic anhydride is obtained in high yield.