Preparation of dihydro-4,4-dimethylfuran-2,3-dione

Details Preparation of dihydro-4,4-dimethylfuran-2,3-dione Preparation of dihydro-4,4-dimethylfuran-2,3-dione

1983-11-16

1985-03-05

Milestone, Norma S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30760

Patent

active

045032386

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.

REFERENCES:
patent: 4225506 (1980-09-01), Schmid
C.A. 92, No. 5,-2/4/80, p. 765, No. 41738q.
Houben-Weyl, "Methoden der Organischen Chemie", vol. IV/1a, (1981), p. 512.

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