公开(公告)号：AU7760675A

公开(公告)日：1976-07-29

申请号：AU7760675

申请日：1975-01-24

Applicant: BASF AG

Inventor： HOFFMANN WERNER ,  HIMMELE WALTER ,  PAUST JOACHIM ,  FRANUBERG KARL VON ,  SIEGEL HARDO ,  PFOHL SIGBERG

IPC: B01D9/02 ,  C07B31/00 ,  C07B57/00 ,  C07C51/00 ,  C07C59/105 ,  C07C67/00 ,  C07C209/00 ,  C07C209/26 ,  C07C211/19 ,  C07D307/33 ,  C07C87/06 ,  C07D5/06

Abstract: A process for resolving racemic alpha -hydroxy- beta , beta -dimethyl- gamma -butyrolactone, referred to as D,L-pantolactone, into its optical antipodes, based on the separation of diastereomeric salts of D,L-pantoic acid ( alpha , gamma -dihydroxy- beta , beta -dimethylbutyric acid), produced from D,L-pantolactone, by means of (-)-3-aminomethylpinane, (+)-3-aminomethylpinane or one of their acid addition salts, as a new resolving agent.