GB589340A - Manufacture of condensation products, being more especially active vermin combating or insecticidal compounds, and formation of liquid and dry insecticides therewith - Google Patents

Manufacture of condensation products, being more especially active vermin combating or insecticidal compounds, and formation of liquid and dry insecticides therewith

Info

Publication number
GB589340A
GB589340A GB4077/44A GB407744A GB589340A GB 589340 A GB589340 A GB 589340A GB 4077/44 A GB4077/44 A GB 4077/44A GB 407744 A GB407744 A GB 407744A GB 589340 A GB589340 A GB 589340A
Authority
GB
United Kingdom
Prior art keywords
nitroethane
phenyl
tolyl
chlorophenyl
mixed
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
GB4077/44A
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.)
Novartis AG
Original Assignee
JR Geigy AG
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 JR Geigy AG filed Critical JR Geigy AG
Publication of GB589340A publication Critical patent/GB589340A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06Preparation of nitro compounds
    • C07C201/12Preparation of nitro compounds by reactions not involving the formation of nitro groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A condensation product having insecticidal properties is made by condensing a 1-phenyl or substituted phenyl - 2 - nitroethanol with an aromatic compound of the benzene series. The condensation is carried out in the presence of the usual condensation agents such as sulphuric acid, aluminium chloride and zinc chloride. The products are applied in the form of solutions or emulsions or mixed with inert diluents. In examples: (1) p-chlorobenzaldehyde and nitromethane are treated with sodium methylate in methyl alcohol to give p-chlorophenyl nitro ethanol which is then reacted with chlorobenzene in the presence of sulphuric acid to form 1 : 1-di-(p-chlorophenyl)-2-nitroethane. By starting with p-tolualdehyde, nitromethane and toluene there is obtained 1 : 1-di-(p-tolyl)-2-nitroethane, and using 3 : 4-dimethyl-benzaldehyde, nitromethene and o-xylene there is obtained 1 : 1-di-(31 : 41-dimethylphenyl)-2-nitroethane. (2) The 1-phenyl-2-nitroethanol obtained as in example (1) is condensed with chlorobenzene in the presence of sulphuric acid to give 1-phenyl-1-p-chlorophenyl-2-nitroethane. Other compounds mentioned which may be produced in an analogous manner are 1-p-tolyl-1-phenyl-2-nitroethane, 1-p-tolyl-1-p-chlorophenyl-2-nitroethane, 1-phenyl-1-(31 : 41-dimethylphenyl)2-nitroethane, 1-p-tolyl-1-(31 : 41-dimethylphenyl)-2-nitroethane, 1 : 1-diphenyl-2-nitroethane, 1 : 1-di-(p-bromophenyl)-2-nitroethane, and 1-(21 : 61-dichlorophenyl)-1-(411-chlorophenyl)2-nitroethane; (3) 1 : 1-di-(p-chlorophenyl)-2-nitroethane in chloroform is mixed with bole and evaporated; (4) 1 : 1-di-p-tolyl-2-nitroethane is mixed with magnesia usta and evaporated; (5) 1 : 1-diphenyl-2-nitroethane in ethyl acetate is mixed with bentonite, evaporated and powdered with gelatine and potassium chromate; (6) calcium carbonate and bentonite are saturated with an alcoholic solution of 1 : 1 - di - p - bromophenyl - 2 - nitroethane and the dried powder mixed with casein, sodium carbonate and a wetting agent such as dodecyl alcohol sulphonate; (7) a solution is prepared of 1 : 1 - di - p - tolyl - 2 - nitroethane methyl hexaline, toluene and soft soap; (8) methyl hexaline is added to a toluene solution of 1 - (21 : 61-dichlorophenyl) - 1 - (411-chlorophenyl) - 2-nitroethane and the product added to a quaternary wetting agent; (9) a toluene solution of 1 : 1-di-p-bromophenyl-2-nitroethane is added to methyl hexaline and the solution added to an aqueous solution of stearyl alcohol sulphonate to form an emulsion; (10) a toluene solution of 1 : 1-diphenyl-2-nitroethane and methyl hexaline is mixed with an aqueous solution of sodium alginate. If desired, glue, casein, or albuminous decomposition products may be used instead of sodium alginate.ALSO:Insecticides comprise a condensation product of a 1-phenyl or substituted phenyl-2-nitroethanol with an aromatic compound of the benzene series. Compounds mentioned are 1 : 1-di-(p-chlorophenyl)-2-nitroethane, 1 : 1-di-(p-tolyl)-2-nitroethane, 1 : 1-di-(31 : 41 dimethyl phenyl) - 2 - nitroethane, 1 - p - tolyl-1-phenyl-2-nitroethane, 1-p-tolyl-1-p-chlorophenyl-2-nitroethane, 1 - phenyl - 1 - (31-41-dimethylphenyl)-2-nitroethane, 1-p-tolyl-1-(31 : 41-dimethylphenyl)-2-nitroethane, 1 : 1-diphenyl-2-nitroethane, 1 : 1-di-(p-bromo-phenyl)-2-nitroethane, and 1-(21 : 61-dichlorophenyl)-1-(411-chlorophenyl)-2 - nitroethane. Additional ingredients of the insecticidal compositions which are mentioned include bole, bentonite, calcium carbonate, casein, glue, gelatine, albuminous decomposition products, methylhexaline, and wetting agents such as dodecyl alcohol sulphonate and stearyl alcohol sulphonate.
GB4077/44A 1943-03-05 1944-03-04 Manufacture of condensation products, being more especially active vermin combating or insecticidal compounds, and formation of liquid and dry insecticides therewith Expired GB589340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH589340X 1943-03-05

Publications (1)

Publication Number Publication Date
GB589340A true GB589340A (en) 1947-06-18

Family

ID=4522039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4077/44A Expired GB589340A (en) 1943-03-05 1944-03-04 Manufacture of condensation products, being more especially active vermin combating or insecticidal compounds, and formation of liquid and dry insecticides therewith

Country Status (3)

Country Link
CH (1) CH236227A (en)
GB (1) GB589340A (en)
NL (1) NL64866C (en)

Also Published As

Publication number Publication date
NL64866C (en)
CH236227A (en) 1945-01-31

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