Preparation of 2-substituted-1,3-dioxacycloalkanes from diols an

Details Preparation of 2-substituted-1,3-dioxacycloalkanes from diols an Preparation of 2-substituted-1,3-dioxacycloalkanes from diols an

1986-10-20

1988-08-02

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549430, 549434, 549436, 549437, 549448, C07D31720, C07D31748

Patent

active

047614919

ABSTRACT:
2-Substituted-1,3-dioxacycloalkanes (also known as acetonides) (such as ##STR1## (4-hydroxy-2,2-dimethyl-1,3-benzodioxole)) are prepared by reacting a diol (such as 1,2,3-trihydroxybenzene) and a diunsaturated ether (such as diisopropenyl ether). The reaction is exothermic and produces a ketone as the only by-product. The invention has utility in hydroxyl moiety "protection" and in pesticide synthesis.

REFERENCES:
patent: 3969416 (1976-07-01), Shaw
patent: 4118400 (1978-10-01), Michaely
patent: 4155915 (1979-05-01), Arndt et al.
patent: 4252738 (1981-02-01), Hartmann et al.
patent: 4450276 (1984-05-01), Gehlhaus et al.
patent: 4540800 (1985-09-01), Inaba et al.

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