Process for enantioselective synthesis of single enantiomers of modafinil by asymmetric oxidation
申请人:Rebiere Francois
公开号:US20050222257A1
公开(公告)日:2005-10-06
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.
[EN] PROCESS FOR ENANTIOSELECTIVE SYNTHESIS OF SINGLE ENANTIOMERS OF MODAFINIL BY ASYMMETRIC OXIDATION<br/>[FR] PROCEDE DE SYNTHESE ENANTIO-SELECTIVE D'ENANTIOMERES UNIQUES DE MODAFINIL PAR OXYDATION ASYMETRIQUE
申请人:CEPHALON FRANCE
公开号:WO2005028428A1
公开(公告)日:2005-03-31
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, R1, R1a, R2 and R2a are as defined in claim 1.
PROCESS FOR ENANTIOSELECTIVE SYNTHESIS OF SINGLE ENANTIOMERS OF MODAFINIL BY ASYMMETRIC OXIDATION
申请人:Rebiere Francois
公开号:US20080214868A1
公开(公告)日:2008-09-04
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.
本发明涉及一种制备式(I)的磺醚化合物的方法,可以制备单一对映体或对映体富集的形式,包括以下步骤:
a) 将式(II)的前手性硫醚与金属手性配合物、碱和氧化剂在有机溶剂中接触;
可选地,
b) 分离所得的式(I)的磺醚化合物。
其中n、Y、R1、R1a、R2和R2a如定义。
Process for Enantioselective Synthesis of Single Enantiomers of Modafinil by Asymmetric Oxidation
申请人:Rebiere Francois
公开号:US20080171896A1
公开(公告)日:2008-07-17
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 herein.