Method for producing 1,3-dioxolan-4,6-dione compound

Details Method for producing 1,3-dioxolan-4,6-dione compound Method for producing 1,3-dioxolan-4,6-dione compound

2005-05-31

2008-10-28

Dentz, Bernard (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S265000

Reexamination Certificate

active

07442809

ABSTRACT:
A method for producing a 1,3-dioxan-4,6-dione compound from a ketone compound and a malonic acid, the method comprising: precipitating a 1,3-dioxan-4,6-dione compound as a crystal from a mixed solvent comprising a first organic solvent having a dielectric constant of 10 or more and a water, so as to form a precipitated 1,3-dioxan-4,6-dione compound; and isolating the precipitated 1,3-dioxan-4,6-dione compound by a solid-liquid separation.

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