Process for producing esters of 3,5-dibromo-4-hydroxybenzonitril

Details Process for producing esters of 3,5-dibromo-4-hydroxybenzonitril Process for producing esters of 3,5-dibromo-4-hydroxybenzonitril

1981-11-03

1982-09-14

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

71105, C07C12175

Patent

active

043494889

ABSTRACT:
2,6-dibromo-4-cyanophenyl octanoates and other esters of 3,5-dibromo-4-hydroxybenzonitrile may be produced by reacting 4-hydroxybenzonitrile with bromine in the presence of an inert solvent and catalytic amounts of a basic heterocyclic aromatic compound or its hydrohalide, followed by removal of unreacted bromine and addition of octanoyl chloride or other acyl halide to the reaction mixture and recovery of the desired ester together with recyclable pyridine hydrohalide catalyst and solvent.

REFERENCES:
patent: 3349111 (1967-10-01), Luckenbaugh
patent: 3397054 (1968-08-01), Hart et al.
patent: 3592626 (1971-07-01), Heywood et al.
patent: 3671556 (1972-06-01), Goldstick
Auwers and Reis (1896) reported In Cook, et al., "Biological Activity Of Various Halogenated Derivatives of Ioxynil," Northwest Weed Control Conf., vol. 19, pp. 321-323 (1965).
E. Muller, et al., Chem. Ber. 92 2278 (1959).
Carpenter et al., "Chemical and Biological Properties of Two New Herbicides-Ioxynil and Bromoxynil", Weed Res. (1964) 4 175-195.

Affiliated with

Also associated with

Rating

Process for producing esters of 3,5-dibromo-4-hydroxybenzonitril does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing esters of 3,5-dibromo-4-hydroxybenzonitril, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing esters of 3,5-dibromo-4-hydroxybenzonitril will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2154400