公开(公告)号：DK158732B

公开(公告)日：1990-07-09

申请号：DK527283

申请日：1983-11-17

Applicant: BASF AG

Inventor： PAUST JOACHIM ,  LEININGER HARTMUT

IPC: C07D307/33 ,  C07D307/60

Abstract: Dihydro-4,4-dimethylfuran-2,3-dione is prepared by oxidation of racemic dihydro-3-hydroxy-4,4-dimethyl-2(3H)-furanone by a process in which the oxidation is carried out by gradually adding powdered calcium oxide to a solution of racemic dihydro-3-hydroxy-4,4-dimethyl-2(3H)-furanone and chlorine in the inert organic solvent.

公开(公告)号：DK527283D0

公开(公告)日：1983-11-17

申请号：DK527283

申请日：1983-11-17

Applicant: BASF AG

Inventor： PAUST JOACHIM ,  LEININGER HARTMUT

IPC: C07D307/33 ,  C07D307/60 ,  C07D307

Abstract: Dihydro-4,4-dimethylfuran-2,3-dione is prepared by oxidation of racemic dihydro-3-hydroxy-4,4-dimethyl-2(3H)-furanone by a process in which the oxidation is carried out by gradually adding powdered calcium oxide to a solution of racemic dihydro-3-hydroxy-4,4-dimethyl-2(3H)-furanone and chlorine in the inert organic solvent.