An improved method of oxazolidinone hydrolysis in the asymmetric synthesis of α-alkylprolines
摘要:
An improvement in Seebach's method for the synthesis of alpha-alkylprolines is reported wherein the hydrolysis of the chiral oxazolidinone 2 is performed on a suspension of silica gel in MeOH/H2O. Following hydrolysis, the pure alpha-alkylproline can he obtained by filtration thereby avoiding a tedious ion exchange purification.
Alkylation of amino acids without loss of the optical activity: preparation of .alpha.-substituted proline derivatives. A case of self-reproduction of chirality
作者:Dieter Seebach、Michael Boes、Reto Naef、W. Bernd Schweizer
DOI:10.1021/ja00354a034
日期:1983.8
Preparation d'un enolate par condensation de proline avec le pivalaldehyde suivie de deprotonation. Etude des reactions de cet enolate avec divers electrophiles. Condensation du pivalaldehyde avec d'autres aminoacides
制备 d'un enolate par 缩合脱脯氨酸 avec le 新戊醛 suvie de 质子化。Etude des反应 de cet enolate avec divers 亲电试剂。新戊醛缩合氨基酸
An improved method of oxazolidinone hydrolysis in the asymmetric synthesis of α-alkylprolines
作者:Michael J. Genin、Paul W. Baures、Rodney L. Johnson
DOI:10.1016/s0040-4039(00)73294-1
日期:1994.7
An improvement in Seebach's method for the synthesis of alpha-alkylprolines is reported wherein the hydrolysis of the chiral oxazolidinone 2 is performed on a suspension of silica gel in MeOH/H2O. Following hydrolysis, the pure alpha-alkylproline can he obtained by filtration thereby avoiding a tedious ion exchange purification.