2-(2,2-Dihalovinyl-3,3-dimethylcyclopropyl)ethanal

Details 2-(2,2-Dihalovinyl-3,3-dimethylcyclopropyl)ethanal 2-(2,2-Dihalovinyl-3,3-dimethylcyclopropyl)ethanal

1979-07-09

1980-09-16

Helfin, Bernard

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

Organic compounds

Oxygen containing

568591, 562506, 560231, 560193, C07C 4721

Patent

active

042229642

ABSTRACT:
2-(2,2-Dihalovinyl-3,3-dimethylcyclopropyl)ethanal is a new chemical compound and useful intermediate in the preparation of certain pyrethroid esters. It is prepared by hydrolysis of 2-[2-(2,2-dihalovinyl)-3,3-dimethylcyclopropyl]ethylidene diacetate, preferably in the presence of an acid.

REFERENCES:
patent: 2676988 (1954-04-01), Robeson et al.
patent: 2676992 (1954-04-01), Humphlett
patent: 4049706 (1977-09-01), Dalton
patent: 4085148 (1978-04-01), Cleare
Methoden der Organischem Chemie, (Houber-Weyl), vol VII, Part 1, (1954), pp. 423-428 & 442-445.

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