Substituted 1,3-dioxepins

Details Substituted 1,3-dioxepins Substituted 1,3-dioxepins

1973-01-22

1976-06-29

Milestone, Norma S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

71 88, C07D32106

Patent

active

039667685

ABSTRACT:
The present invention is directed to new substituted 1,3-dioxepin compounds corresponding to the formula: ##SPC1##
Wherein R is a lower alkyl group of from 1 to about 8, both inclusive, carbon atoms or an aryl group of from 6 to about 8 carbon atoms inclusive. R' is hydrogen or an alkyl group of from 1 to about 8, both inclusive, carbon atoms, and n is an integer of from 0 to about 8. The present invention is further directed to a novel process for the preparation of such substituted 1,3-dioxepin compounds wherein n is 0 by reacting, at room temperatures, a corresponding trialkyl orthoalkanoate with cis-2-butene-1,4-diol in the presence of a non-oxidizing acid catalyst. The compounds of the present invention are suitable for use as herbicides.

REFERENCES:
patent: 3658846 (1972-04-01), Chamberlin et al.

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