Procedure for the photochlorination of alkyl-aromatic compounds

An alkyl-aromatic compound is selectively photochlorinated in the side chain in a cyclic reaction system wherein said compound is continuously circulated between a container (1) and photochlorination reactor (2). The compound is partially chlorinated after each passage through the photochlorination...

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Bibliographische Detailangaben
Hauptverfasser:	RIBALDO, CARLO, MESSORI, VITTORIO, CONTARDI, GIUSEPPE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	An alkyl-aromatic compound is selectively photochlorinated in the side chain in a cyclic reaction system wherein said compound is continuously circulated between a container (1) and photochlorination reactor (2). The compound is partially chlorinated after each passage through the photochlorination reactor (2), the number of passages depending on the degree of chlorination required. The procedure is particularly useful for the preparation of benzyl chloride, benzal chloride and benzotrichloride, and the corresponding halogen-substituted derivatives of the nucleus.