Method of purifying epoxy compound

Details Method of purifying epoxy compound Method of purifying epoxy compound

2007-08-14

2008-12-02

Andres, Janet L (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S519000, C549S560000

Reexamination Certificate

active

07459573

ABSTRACT:
An epoxy compound of the formula (1):wherein, R represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, and Ar represents an optionally substituted aromatic group, can be purified by dissolving a crude product containing the epoxy compound (1), an aprotic polar solvent and an alkali metal salt in a two-phase solvent composed of water and an organic solvent, which is capable of phase-separating from water, obtaining the organic layer by phase separation, washing with water and then subjecting to isolation of the epoxy compound (1) without decomposition.

REFERENCES:
patent: 5405861 (1995-04-01), Itoh et al.
patent: 6884892 (2005-04-01), Wang et al.

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