Process for the preparation of chlorination derivatives of pyrid

Details Process for the preparation of chlorination derivatives of pyrid Process for the preparation of chlorination derivatives of pyrid

1993-02-03

1997-12-09

Haley, Jacqueline

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21361

Patent

active

056962690

ABSTRACT:
The invention concerns a process for the preparation of chlorinated derivatives of pyridine compounds by a chlorination reaction of the corresponding pyridine compounds with molecular chlorine, carried out in the gaseous phase by means of bis(trichloromethyl)sulfone as a free radical initiator.
The obtained chlorinated derivatives of pyridine compounds, such as 2,6-dichloropyridine, can be used as chemical intermediates.

REFERENCES:
patent: 4804763 (1989-02-01), Franklin
Klingsberg, Erwin; Pyridine and Its Derivatives, part one, Interscience, New York, 1960, pp. 2-3.
Dorrepaal, W; "Halogenation of Aromatics . . . " Chemical Abstracts 75(13): 87828 w, Sep. 1971.

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