Patent search ap:("BASF AG") AND inv:"FRAUNBERG KARL V DR" Page 1

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发明专利
Resolution of dl-pantolactone with 3-aminomethylpinane - as the pantoate salt then sepn, decompsn and lactonisation 未知

公开(公告)号：DE2404305A1

公开(公告)日：1975-08-14

申请号：DE2404305

申请日：1974-01-30

Applicant: BASF AG

Inventor： PFOHL SIGBERG DR , PAUST JOACHIM DR , SIEGEL HARDO DR , HIMMELE WALTER DR , HOFFMANN WERNER DR , FRAUNBERG KARL V DR

IPC: C07D307/33 , C07D307/32

Abstract: Racemic pantolactone is resolved by sepn. of the salts of pentanoic acid with (-) or (+)-3-aminomethylpinane followed by reformation of the lactone. D(-) Pantolactone is converted into D(+) pantothenic acid D(+) panthenol and D(+) panthetine.

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