Process for the preparation of cyclopropylacetylene derivatives

Details Process for the preparation of cyclopropylacetylene derivatives Process for the preparation of cyclopropylacetylene derivatives

1997-12-12

1999-09-21

Raymond, Richard L.

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

Organic compounds

Carboxylic acid esters

562506, 570186, C07C 51377, C07C 67317

Patent

active

059556277

ABSTRACT:
According to the present invention, a process for the preparation of a cyclopropylacetylene derivative represented by the following formula (III): ##STR1## is provided, which comprises reacting a cyclopropylacrylic acid derivative represented by the following formula (I): ##STR2## with a halogenating agent to obtain a halogenocyclopropylpropionic acid derivative represented by the following formula (II): ##STR3## and reacting the halogenocyclopropylpropionic acid derivative with a base.

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