Chiral Resolution of Racemic 2‐Pyrone Diels‐Alder Cycloadduct by Diastereomeric Salt Formation

摘要

An efficient protocol was developed that allows resolution of racemic bicyclolactone carboxylic acid obtained from the Diels‐Alder cycloaddition of 3,5‐dibromo‐2‐pyrone by formation of diastereomeric salts with quinidine and cinchonidine.