Bis-epoxy-dialkoxy-alkanes

Details Bis-epoxy-dialkoxy-alkanes Bis-epoxy-dialkoxy-alkanes

1979-07-05

1981-02-10

Milestone, Norma S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603478, C07D30322

Patent

active

042501016

ABSTRACT:
Bis-epoxy-dialkoxy-alkanes are valuable intermediates for the preparation of the sought-after aromatic 2,5-dimethyl-4-hydroxy-2,3-dihydrofuran-3-one. The novel bis-epoxy-dialkoxy-alkanes are obtained by reacting the corresponding .alpha.,.alpha.'-dihalo-1,2-diketones with an alkali metal hydroxide or an alkali metal alkoxide and an alkanol at from -20.degree. to +100.degree. C. To prepare the 2,5-dialkyl-4-hydroxy-2,3-dihydro-furan-3-ones, which are valuable aromatics, the novel bis-epoxy-dialkoxy-alkanes are heated with strong mineral acids or strong organic acids at from 60.degree. to 120.degree. C.

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