Synthesis of alpha--amino-alpha, alpha'- dihaloketones and process for the preparation of beta--amino acid derivatives by the use of the same
申请人:Kaneka Corporation
公开号:US20030158436A1
公开(公告)日:2003-08-21
The present invention provides a commercially profitable process for producing a &bgr;-amino acid ester derivative
which comprises reacting an &agr;-amino acid ester derivative with a base and a dihalomethane,
reacting the same with a lithium amide and an alkyllithium in succession,
and treating the reaction product with an acid in an alcohol.
Synthesis of &agr;-amino-&agr;′, &agr;′-dihaloketones and process for the preparation of &bgr;-amino acid derivatives by the use of the same
申请人:Kaneka Corporation
公开号:US06573399B1
公开(公告)日:2003-06-03
The present invention provides a commercially profitable process for producing a &bgr;-amino acid ester derivative
which comprises reacting an &agr;-amino acid ester derivative with a base and a dihalomethane,
reacting the same with a lithium amide and an alkyllithium in succession,
and treating the reaction product with an acid in an alcohol.