Process for cyclizing upsilon-chlorocarboxylic acids

Details Process for cyclizing upsilon-chlorocarboxylic acids Process for cyclizing upsilon-chlorocarboxylic acids

1984-06-28

1985-05-28

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

C07C 6974

Patent

active

045202095

ABSTRACT:
.gamma.-chlorocarboxylic acid methyl or ethyl esters are cyclized to the corresponding cyclopropane carboxylic acid esters by employing the sodium or potassium alcoholate of methanol or ethanol in the presence of the same alcohol at a temperature above the boiling point of the alcohol employed.

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patent: 3652652 (1972-03-01), Julia
patent: 3711549 (1973-01-01), Phillips
Bunce, Organic Preparation and Procedures, Int., 6, pp. 193-196 (1974).
Roberts, "An Introduction to Modern Experimental Organic Chemistry," pp. 14-15, 20 & 21, (1969).
Allinger, "Organic Chemistry," pp. 288-294, (1972).

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