Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1990-08-24
1993-03-02
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562402, 562460, C07B 5700
Patent
active
051911124
ABSTRACT:
Optical resolution of (.+-.)-2-(3-benzoyl)-phenylpropionic acid is attained effeciently in high yield by the use of a specific optically active amine which is represented by the general formula [I]: ##STR1## wherein R.sup.1 either stands for a hydrogen atom, a chlorine atom, a bromine atom, a methyl group, or an isopropyl group or participates, as a divalent group, in forming a benzene ring in combination with two carbon atoms adjoining each other in a benzene ring to which the substituent, R.sup.1, is bonded, R.sup.2 stands for a lower alkyl group, a hydroxymethyl group, an .alpha.-hydroxybenzyl group, or a ##STR2## group (R.sup.3 standing for a hydrogen atom, a chlorine atom, a bromine atom, or a methyl group), n for 0 or 1, and * for the center of optical activity.
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Arai Kazutaka
Nohira Hiroyuki
Clarke Vera C.
Dees Jos,e G.
Nissan Chemical Industries Ltd.
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