METHOD OF PRODUCTION FOR 2-HALOGENATED BENZOIC ACIDS

PROBLEM TO BE SOLVED: To provide a method of production for 2-halogenated benzoic acids. SOLUTION: 2-Halogenated benzoic acids of formula (I) are produced by reacting benzoic acids of formula (II) with a halogenating agent in the presence of a Pd catalyst. (A is -OH, -OM (M is an alkali metal), -N(R...

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Bibliographische Detailangaben
Hauptverfasser:	HINO TOMOKAZU, KODAMA HIROYOSHI, NISHIDA TATSUKI, TSUBATA KENJI, SHIYOUHEI TAKESHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of production for 2-halogenated benzoic acids. SOLUTION: 2-Halogenated benzoic acids of formula (I) are produced by reacting benzoic acids of formula (II) with a halogenating agent in the presence of a Pd catalyst. (A is -OH, -OM (M is an alkali metal), -N(R )R (R and R are each H, a 1-6C alkyl group, a (substituted) phenyl group or the like), R is H, a 1-6C alkyl group, a 1-6C alkylcarbonyl group, a carboxy group, a 1-12C alkoxycarbonyl group, a (substituted) phenylcarbonyl group or the like, n is 0-4, X is Cl, Br, I, and (R)n optionally forms a 3-4C alkylene or a 3-4C alkenylene condensed ring by substituting adjacent C on the benzene ring).