The invention relates to a method for preparing a sulphoxide compound of formula (I) either as a single enantiomer or in an enantiomerically enriched form, comprising the steps of:
a) contacting a pro-chiral sulphide of formula (II) with a metal chiral complex, a base and an oxidizing agent in an organic solvent; and optionally
b) isolating the obtained sulphoxide of formula (I).
wherein n, Y, R
1
, R
1a
, R
2
and R
2a
are as defined in claim
1.
本发明涉及一种制备
硫氧化物化合物的方法,其
化学式为(I),可以是单一对映体或对映富集形式,包括以下步骤:a)在有机溶剂中,将具有前手性的
硫醚化合物(II)与
金属手性配合物、碱和氧化剂接触;并且可选地,b)分离获得的
硫氧化物(I)。其中,n、Y、R1、R1a、R2和R2a如权利要求1所定义。