Preparation of cyclic ethers

Details Preparation of cyclic ethers Preparation of cyclic ethers

1981-02-02

1982-06-22

Love, Ethel G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549369, 549377, 549356, 549508, C07D31910, C07D30700, C07D30777, C07D30900

Patent

active

043361951

ABSTRACT:
Cyclic ethers such as tetrahydrofuran, dioxane, and tetrahydropyran are produced by reacting dimethyl carbonate with an appropriate primary dihalide in the presence of a quaternary ammonium or phosphonium salt.

REFERENCES:
patent: 2035386 (1936-03-01), Salzberg
patent: 2603650 (1952-07-01), Schmerling
patent: 3931238 (1976-01-01), Starks
patent: 4002646 (1977-01-01), Robinson
patent: 4254039 (1981-03-01), Murib et al.
patent: 4261906 (1981-04-01), Renga et al.
patent: 4271080 (1981-06-01), Murib
Chem. Abstracts 65:5434f.
Chem. Abstracts 86:139904s.
Chem. Abstracts 50:8647e.
Grobelny et al. Tetrahedron Letters, No. 28, pp. 26, 39-42 (1979).
Chem. Berichte, 72B, pp. 2057-2062 (1939).

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