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The preparation of the optical isomers of α‐(2 : 4‐dichlorophenoxy)propionic acid and their growth‐regulating activity
Author(s) -
Collins S. T.,
Smith F. E.
Publication year - 1952
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740030603
Subject(s) - brucine , chemistry , cinchonine , stereochemistry , chromatography , organic chemistry , biochemistry , catalysis , enantioselective synthesis , strychnine
α‐(2 : 4‐Dichlorophenoxy)propionic acid has been resolved into its optical isomers via the brucine and cinchonine salts, and the activity of the two forms, in three standard auxin tests, has been measured. It was found that the (+)‐form had twice the activity of the racemic acid whereas the (−)‐form was inactive.