Process for the preparation of 3,4-dihalo-1,2-epoxybutanes from

Details Process for the preparation of 3,4-dihalo-1,2-epoxybutanes from Process for the preparation of 3,4-dihalo-1,2-epoxybutanes from

1993-04-05

1993-11-23

Evans, Joseph E.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549563, C07D30100, C07D30308

Patent

active

052645959

ABSTRACT:
Disclosed is a process for the preparation of 3,4-dichloro and 3,4-dibromo-1,2-epoxybutane by the reaction of 3,4-epoxy-1-butene with chlorine or bromine in the presence of a catalytic amount of a tertiary amine or a hydrohalide of a primary, secondary or tertiary amine. The reaction preferably is carried out by the addition of 3,4-epoxy-1-butene and chlorine or bromine to an organic, halogenation solvent containing chlorine or bromine and tertiary amine or amine hydrohalide catalyst.

REFERENCES:
patent: 4116984 (1978-09-01), Prinzbach et al.
patent: 5103028 (1992-04-01), Falling et al.
Shellhamer et al., J. Heterocyclic Chem., 20, pp. 229-232 (1983).
Chemical Abstracts 82:86251k [Movsumzade et al., Dokl. Akad. Nauk. Az. SSR, 30, 14 (1974)].

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