Enantiodifferentiating transformation of prochiral 1,3,5-pentanetriols controlled by intramolecular van der Waals attractions
摘要:
Acetalization of prochiral 1,3,5-pentanetriol derivatives (5) with l-menthone proceeded enantioselectively (3.0-4.6:1) to give chiral spiroacetals (6) which can be utilized as versatile chiral building blocks.