Preparation of chlorophenols

Details Preparation of chlorophenols Preparation of chlorophenols

1981-03-17

1982-09-28

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 3927

Patent

active

043519695

ABSTRACT:
Chlorophenols are prepared by thermally dehydrochlorinating a corresponding chlorocyclohexanone in the presence of a catalyst having the formula: ##STR1## wherein A is phosphorus or arsenic, R.sub.1 and R.sub.2, which are identical or different, are each hydrogen, an alkyl radical having from 1 to 12 carbon atoms, a phenyl radical or a radical --NR.sub.4 R.sub.5, in which R.sub.4 and R.sub.5, which are identical or different, are each H or an alkyl radical having from about 1 to 5 carbon atoms, R.sub.3 is an alkyl radical having from 1 to 12 carbon atoms, a phenyl radical or a radical --NR.sub.4 R.sub.5, in which R.sub.4 and R.sub.5 are as defined above, and n is equal to 0 or 1.

REFERENCES:
patent: 3532740 (1970-10-01), Hargls
patent: 3660505 (1972-05-01), Starnes
"Acta Chemica Scandinavia", vol. 4, pp. 200-204 (1950), Hassel et al.
"J. Amer. Chem. Soc.", vol. 75, pp. 2633-2635 (1953), Berlinger et al.
"Chem. Abstract", vol. 89, p. 127,172z (1978), Pudivol et al.

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