Direct Catalytic Asymmetric Synthesis of Highly Functionalized 2-Methylchroman-2,4-diols via Barbas-List Aldol Reaction
作者:Dhevalapally B. Ramachary、Rajasekar Sakthidevi
DOI:10.1002/chem.200900066
日期:2009.4.27
A practical and sustainable chemical process for the synthesis of highly substituted aldol↔lactol products was achieved for the first time through the asymmetric Barbas–List aldol (BLA) reaction of 2‐hydroxybenzaldehydes with acetone in the presence of a catalytic amount of trans‐4‐OH‐L‐proline (see scheme).