Process for the preparation of 2-chloroacrylonitrile

Details Process for the preparation of 2-chloroacrylonitrile Process for the preparation of 2-chloroacrylonitrile

1996-10-23

1997-10-21

Ramsuer, Robert W.

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

Organic compounds

Nitriles

348461, C07C25330

Patent

active

056798261

ABSTRACT:
2-Chloroacrylonitrile is prepared in a particularly advantageous and readily industrially practicable manner by chlorinating acrylonitrile and then thermally cleaving the 2,3-diehloropropionitrile formed, by chlorinating acrylonitrile in the presence of a catalyst system comprising dimethylformamide and pyridine and/or pyridine derivatives and subjecting the resulting crude 2,3-dichloropropionitrile to thermal cleavage in the presence of the same catalyst system without the addition of further catalysts.

REFERENCES:
patent: 2298739 (1942-10-01), Lichty
patent: 4418018 (1983-11-01), Kuroda et al.
A. Lorette, J. Org. Chem. vol. 26, pp. 2325 to 2327 (1961).
H. Brintzinger, et al., Angew. Chem. A., vol. 60, pp. 311 to 312 (1948).
Patent Abstracts of Japan, vol. 6, No. 261, Abstract of JP 57 154 156 (1982).

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