O-BENZOYLBENZOIC ACID LONG-CHAIN ALKYL ESTER AND PRODUCTION THEREOF

NEW MATERIAL:The o-benzoylbenzoic acid long-chain alkyl ester of formula I (n is 8-14). EXAMPLE:Octyl o-benzoylbenzoate. USE:Useful as a photo-polymerization initiator. Since the compound is liquid at room temperature, various problems of solid photo-polymerization initiator can be avoided by using...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI MAKIO, NAWA HIROMI, MIYAGAWA TSUTOMU
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	NEW MATERIAL:The o-benzoylbenzoic acid long-chain alkyl ester of formula I (n is 8-14). EXAMPLE:Octyl o-benzoylbenzoate. USE:Useful as a photo-polymerization initiator. Since the compound is liquid at room temperature, various problems of solid photo-polymerization initiator can be avoided by using the compound as a polymerization initiator and, furthermore, the compound has high photo-polymerization activating effect. PREPARATION:The compound of formula I can be produced e.g. by reacting an o-benzoylbenzoic acid halide of formula II (X is halogen) with a long-chain alcohol of formula III in the presence of a solvent (e.g. hexane) at about 40-80 deg.C for 0.5-3hr. The starting compound of formula II is produced by converting o-benzoylbenzoic acid into acid halide by conventional method. As an alternative method, the compound of formula I can be synthesized by the isomerization reaction of a compound of formula IV.