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。