Yeast-mediated synthesis of optically active diols with C2-symmetry and (R)-4-pentanolide
作者:Hajime Ikeda、Eriko Sato、Takeshi Sugai、Hiromichi Ohta
DOI:10.1016/0040-4020(96)00373-0
日期:1996.6
Pichia farinosa IAM 4682 was examined. The reduction of carbonyl groups proceeded highly selectively with an anti-Prelog fashion to give (R)-alcohols. (2R,5R)-2,5-Hexanediol (83% yd., >99% e.e., 95% d.e.), (2R,4R)-2,4-pentanediol (94% yd., >99% e.e., 98% d.e.), and (R)-4-pentanolide (67% yd., >99% e.e.) were highly efficiently obtained from the corresponding ketones. Effect of the structure of substrate
研究了用酵母Pichia farinosa IAM 4682还原某些二酮和酮酸的方法。羰基的还原以抗-Prelog的方式高度选择性地进行,得到(R)-醇。(2 R,5 R)-2,5-己二醇(83%yd。,> 99%ee,95%de),(2 R,4 R)-2,4-戊二醇(94%yd。,> 99 %ee,98%de)和(R)-4-戊醇(67%yd。,> 99%ee)是从相应的酮中高效获得的。讨论了底物结构对立体化学过程以及选择性的影响。