Asymmetric Synthesis of 2-Amino Alcohol Derivatives from (<i>S</i>)-α-Amino Aldehydes via Chiral Acetal Templates
作者:Shinzo Kano、Tsutomu Yokomatsu、Haruo Iwasawa、Shiroshi Shibuya
DOI:10.1246/cl.1987.1531
日期:1987.8.5
Titanium tetrachloride mediated addition of allyltrimethylsilane to chiral acetals derived from (S)-α-amino aldehydes and (+)-(2S,4S)-pentane-2,4-diol gave the anti-2-amino alcohol derivatives with considerably high diastereoselectivity. On the other hand, the same reaction by the use of acetals obtained from (−)-(2R,4R)-pentane-2,4-diol gave the products of opposite stereochemistry series as major
四氯化钛介导的烯丙基三甲基硅烷加成到衍生自 (S)-α-氨基醛和 (+)-(2S,4S)-pentane-2,4-diol 的手性缩醛中,得到了具有相当高非对映选择性的抗 2-氨基醇衍生物. 另一方面,通过使用从 (-)-(2R,4R)-戊烷-2,4-二醇获得的缩醛进行的相同反应得到作为主要产物的相反立体化学系列的产物。