GB947167A - Improvements in or relating to nuclear-chlorinated aromatic compounds - Google Patents

Improvements in or relating to nuclear-chlorinated aromatic compounds

Info

Publication number
GB947167A
GB947167A GB1477060A GB1477060A GB947167A GB 947167 A GB947167 A GB 947167A GB 1477060 A GB1477060 A GB 1477060A GB 1477060 A GB1477060 A GB 1477060A GB 947167 A GB947167 A GB 947167A
Authority
GB
United Kingdom
Prior art keywords
active substance
marlstone
kieselguhr
benzonitrile
chloro
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1477060A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB947167A publication Critical patent/GB947167A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/34—Nitriles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton

Abstract

Di - and tri - chloro - benzonitriles are produced by passing a gas mixture consisting of one or more di- and/or trichlorotoluenes, ammonia, oxygen, and nitrogen (or other diluent) over a vanadium oxide catalyst maintained at a temperature between 300 DEG and 450 DEG C. If a mixture of isomeric di- and trichlorotoluenes (obtained by the catalytic chlorination of toluene or o-chlorotoluene) is treated with ammonia in the manner described above, a product is obtained from which 2,6-dichloro-benzonitrile and 2,3,6 - trichloro -benzonitrile may be separated by distillation, or crystallisation from a hydrocarbon or an aliphatic alcohol. The vanadium oxide, which may be mixed with oxides of chromium, molybdenum or thorium, is preferably employed on activated aluminium oxide, as carrier. The chloro-benzonitriles have use in compositions for the control of plant growth. Specification 862,863 is referred to.ALSO:A composition for influencing the growth of plants consists of 2,3,6-tri-chloro-benzonitrile and an inert solid or liquid carrier. A dust preparation, for controlling premature sprouting of potatoes, consists of 4% of the active substance mixed with 16% of kieselguhr and 80% of magnesium marlstone. A specific example of a liquid preparation comprises 25% of the active substance dissolved in 61% of xylene and 6% of methyl ethyl ketone with the addition of 8% of an emulsifying agent. Wettable powders may be made up using wetting agents, such as fatty alcohol sulphates or alkyl-aryl sulphonates, and dispersion agents such as lignin sulphonate. Specified forms are wettable powders, miscible oils, solutions and dusts. Specification 862,863 is referred to.ALSO:Premature sprouting of seed potatoes is retarded by applying to the seed potatoes a composition which contains 2,3,6-trichlorobenzonitrile as active substance together with an inert solid or liquid carrier material, e.g. talc, kieselguhr or magnesium marlstone, or a mixture of them or xylene. A suitable dust composition contains 4% by weight of active substance, mixed with 16% of kieselguhr and 80% of magnesium marlstone. Specification 862,863 is referred to.
GB1477060A 1959-04-28 1960-04-27 Improvements in or relating to nuclear-chlorinated aromatic compounds Expired GB947167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL238685 1959-04-28

Publications (1)

Publication Number Publication Date
GB947167A true GB947167A (en) 1964-01-22

Family

ID=19751692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1477060A Expired GB947167A (en) 1959-04-28 1960-04-27 Improvements in or relating to nuclear-chlorinated aromatic compounds

Country Status (3)

Country Link
CH (1) CH440249A (en)
DE (1) DE1116209B (en)
GB (1) GB947167A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158928A1 (en) * 1984-04-06 1985-10-23 SKW Trostberg Aktiengesellschaft Process for preparing pure 2,6-dichlorobenzonitrile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL129620C (en) * 1963-04-01
EP0273317B1 (en) * 1986-12-19 1992-04-15 Nitto Chemical Industry Co., Ltd. Process for producing 2,6-dichlorobenzonitrile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158928A1 (en) * 1984-04-06 1985-10-23 SKW Trostberg Aktiengesellschaft Process for preparing pure 2,6-dichlorobenzonitrile
US4582647A (en) * 1984-04-06 1986-04-15 Skw Trostberg Aktiengesellschaft Process for the preparation of pure 2,6-dichlorobenzonitrile

Also Published As

Publication number Publication date
DE1116209B (en) 1961-11-02
CH440249A (en) 1967-07-31

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