Synthesis of cyclic ketene acetals

Details Synthesis of cyclic ketene acetals Synthesis of cyclic ketene acetals

1991-02-14

1992-09-01

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549376, 549430, C07D32106, C07D32302, C07D32304

Patent

active

051440466

ABSTRACT:
An improved process for the preparation of cyclic ketene acetals such as 2-methylene-1,3-dioxepane is provided. This process entails reacting at an elevated temperature a halogenated cyclic ketene acetal such as 2-chloromethyl-1,3-dioxepane with a hydroxide compound such as potassium hydroxide in a non-reactive alcohol such as 2-butanol.

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Fukuda et al, Tetrahedron Letters, vol. 27, No. 14, 1587-1590 (1986).

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