Preparation of formylcyclopropane

Details Preparation of formylcyclopropane Preparation of formylcyclopropane

1990-06-04

1991-10-01

Reamer, James H.

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

Organic compounds

Oxygen containing

568488, C07C 4561

Patent

active

050535501

ABSTRACT:
Formylcyclopropane (I) ##STR1## is prepared by cyclization of 4-chlorobutanal by means of an aqueous mineral base by a method in which the reaction is carried out at 50.degree.-150.degree. C. in a liquid two-phase system consisting of an aqueous phase and a water-immiscible organic phase, and the formylcyclopropane is removed continuously from the reaction mixture.

REFERENCES:
patent: 3404166 (1968-10-01), Achard et al.
patent: 3996259 (1976-12-01), Lee et al.
patent: 4720593 (1988-01-01), Andrade et al.
Rec.Trav.Chem. 91, 221-228 (1972).
J.Org.Chem. USSR 23, 112-115 (1987).
J.Org.Chem. 52, 2559-2562 (1987).
J.Org.Chem. 50, 1332 (1985).
Bull.Soc.Chim. France, 3273 (1965).
Rozantzev:Synthesis 191 (1971).

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