fun: The synthetic potential of the highly regio‐ and stereoselective title reaction, which relies on two oxidativecleavage steps promoted by RuCl3 in combination with NaIO4 (see example; Bz=benzoyl), was demonstrated with the synthesis of biologically active cis‐(2R,3S)‐3‐hydroxypipecolic acid from D‐glucose.
Regioselective oxidative cleavage of benzylidene acetals: synthesis of highly functionalized chiral intermediates
作者:Pon Minor Senthilkumar、Appu Aravind、Sundarababu Baskaran
DOI:10.1016/j.tetlet.2006.12.078
日期:2007.2
A mild and efficient method for the regioselectiveoxidativecleavage of benzylidene acetals with KBrO3/Na2S2O4 under bi-phasic conditions (EtOAc/H2O), leading to highly functionalized chiral intermediates, is reported.
报道了在两相条件下(EtOAc / H 2 O)用KBrO 3 / Na 2 S 2 O 4进行亚苄基乙缩醛的区域选择性氧化裂解的温和有效方法,导致高度官能化的手性中间体。