Preparation of 2-halofluorobenzene

Details Preparation of 2-halofluorobenzene Preparation of 2-halofluorobenzene

1989-04-04

1990-04-17

Evans, J. E.

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

Organic compounds

Halogen containing

C07C 1724, C07C 2124

Patent

active

049182510

ABSTRACT:
A process for producing 2-halofluorobenzene from 2,4-dihalofluorobenzenes comprises treating an aqueous slurry of 2,4-dihalofluorobenzene with hydrogen at an elevated temperature in the presence of a transition metal supported on a carbon catalyst. The process produces a mixture including fluorobenzene and 2-halofluorobenzene. The 2-halofluorobenzene can be separated from the mixture by conventional means such as distillation. Optionally, the fluorobenzene also can be recovered.

REFERENCES:
patent: 2861984 (1958-11-01), Gordon et al.
patent: 3424804 (1969-01-01), Tilney-Bassett
Pummer et al., Journal of Research of the National Bureau of Standards vol. 62, No. 3, Mar. 1959, Research Paper 2939, pp. 113-117.
Florin et al., Journal of Research of the National Bureau of Standards, vol. 62, No. 3, Mar. 1959, Research Paper 2940, pp. 119-122.
Introduction to Organic Chemistry, (2nd Ed. 1989), pp. 794-795, by Streitweiser and Heathcock.
The Merck Index, 10th Ed. 1983, Windholz, Editor.

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