Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1994-02-03
1995-11-21
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D21361
Patent
active
054688647
ABSTRACT:
The present invention relates to a process for preparing 2,6-dichloropyridine which comprises reacting an organic solvent-free, catalyst-free reaction mixture comprising 2-chloropyridine and chlorine in the presence of a hydrogen chloride scavenger and ultraviolet light, and optionally in the presence of added moisture, at a temperature of between about 90.degree. C. and about 185.degree. C. Also claimed is a method for preventing calcium chloride plugging of the chlorine feed stream and for preventing calcium chloride build-up in the above reaction mixture which comprises adding moisture in the form of water or steam, or a combination thereof, to the reaction mixture prior to, or during, the reaction of said process.
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Chemical Abstracts 113:6172, 1990.
Chemical Abstracts 113:6173, 1990.
WPIDS 89-132582, 1989 of JP 01 075469 published Mar. 22, 1989.
Dumas Richard H.
Gavin David F.
Hani Rahim
Harrison Charles H.
Kennedy Michael A.
Carlson Dale L.
Ivy C. Warren
M. Mach D. Margaret
Olin Corporation
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