A PROCESS FOR THE PREPARATION OF CHIRAL 2,3-SUBSTITUTED PROPYLOXY SUBSTITUTED-2,2-DIALKYL-3,4-DIARYLCHROMANS AND THEIR SALTS

摘要

A process for the preparation of Chiral 2, 3 substituted Propyloxy substituted 2,2, dialkyl-3,4-diarylchromans and their salts comprises. ating a mixture of 2,2-dialkyl-3,4-diarylchromans with chiral compounds and then treating. the chiral compounds with an alkyl or cycloalkyl amine in a protic solvent at a period of 15 min to 10 hr.