IL40968A - Herbicidal compositions containing 1,2-dialkyl-3,5-diaryl pyrazolium salts,some novel pyrazolium salts and process for preparing the same - Google Patents

Herbicidal compositions containing 1,2-dialkyl-3,5-diaryl pyrazolium salts,some novel pyrazolium salts and process for preparing the same

Info

Publication number
IL40968A
IL40968A IL40968A IL4096872A IL40968A IL 40968 A IL40968 A IL 40968A IL 40968 A IL40968 A IL 40968A IL 4096872 A IL4096872 A IL 4096872A IL 40968 A IL40968 A IL 40968A
Authority
IL
Israel
Prior art keywords
compound
dimethyl
hydrogen
methyl
nonionic
Prior art date
Application number
IL40968A
Other versions
IL40968A0 (en
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of IL40968A0 publication Critical patent/IL40968A0/en
Publication of IL40968A publication Critical patent/IL40968A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D231/00Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/12Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/45Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
    • C07C45/455Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation with carboxylic acids or their derivatives
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/76Ketones containing a keto group bound to a six-membered aromatic ring
    • C07C49/80Ketones containing a keto group bound to a six-membered aromatic ring containing halogen
    • C07C49/813Ketones containing a keto group bound to a six-membered aromatic ring containing halogen polycyclic

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Furnace Details (AREA)
  • Plural Heterocyclic Compounds (AREA)

Claims (9)

1. A method for the control of undesirable plant species comprising applying to the foliage of said undesirable plants a herbicldally effective amount of a compound having the formula: wherein R-^ and each represent lower alkyl groups having 1 to ¾ carbon atoms; Y, Y', Z and Z' each independ- represent ently jteprasnt a member selected from the group consist- r- \ „ trifl'uoromethyl ing of hydrogen, halogen, nitro, alkyl C^-C^, haloalkyl ■C^-Cj and alkoxy C-^-C^; X represents an anion with a charge of from 1 to 3; and m is an integer selected from 1, 2 and 3.
2. A method according to Claim 1 wherein the compound has the structure wherein Y, Y', Z and Z' are hydrogen; R^ and R£ are methyl; m is 1 and X is selected from the group consisting of chloride, bromide, iodide, acetate, hydroxide, hydrogen sulfate, methyl sulfate, p_-toluene sulfonate, perchlorate and alkyl sulfonate C-^-C^ . w ., 3· A method according to Claim 1 wherein the compound is 1 , 2-dimethy 1-3 , 5-diphenylpyrazolium p_-tolu-enesulfonate . ✓ . A method according to Claim 1 wherein the compound is 1 , 2-dimethyl-3 , 5-diphenylpyrazolium methyl sulfate. 5. A method according to Claim 1 wherein the compound is 1 , 2-dimethyl-3- (m-chlorophenyl )-5-phenyl-pyrazolium methyl sulfate. - 6. A method according to Claim 1 wherein the compound is 1 , 2-dimethyl-3- (m-methylphenyl )-5-phenyl-pyrazolium methyl sulfate. 7. A method according to Claim 1 wherein the compound is l,2-dimethyl-3-(o-methylphenyl)-5-phenyl-pyrazolium methyl sulfate. 8. A method according to Claim 1 wherein the compound is 1 , 2-dimethyl-3-(p_-chlorophenyl )-5-phenyl-pyrazolium methyl sulfate. 9. A method according to Claim 1 where the undesirable plant species is wild oats and the compound has the structure wherein is methyl; is alkyl C^-C^; Y, Y', Z and Z' each independently represent a member selected from the group consisting of hydrogen, halogen, methyl and methoxy; provided that only one of the phenyl rings is substituted para to the pyrazolium ring with a substituent other than hydrogen. 10. A method according to Claim 9 wherein the compound is applied at a rate of from 0.5 to 3.0 pounds per acre. 11. A method according to Claim 9 for selectively controlling wild oats in the presence of a cereal grain crop selected from the group consisting of wheat, barley and rye by application of the compound to the wild oat infested crop. 12. A method according to Claim 11 wherein application is made by spraying an aqueous solution of ) said compound and a surfactant selected from the group consisting of nonionic; anionic and nonionic-anionic surfactants. 1
3. A method according to Claim 12 wherein the surfactant is nonionic and has a hydrophilic-lipo-philic balance of from 11 to l6. 1
4. A method according to Claim 11 wherein the compound is 1 , 2-dimethyl-3 , 5-diphenylpyrazolium methyl sulfate. 15· A method according to Claim 12 wherein the compound is 1 , 2-dimethyl-3 , 5-diphenylpyrazolium methyl sul ate. 16. A method for the preparation of a water--miscible herblcldal concentrate comprising dissolving 5$ to 70% of the compound of Claim 1 in 85% to 30$ of a water-miscible polar solvent. 17. A method according to Claim l6 further comprising the addition of a nonionic, anionic or nonionic-anionic surfactant. 18. A method according to Claim 17 wherein the compound is 1 , 2-dimethyl-3 , 5-diphenylpyrazolium methyl sulfate; the solvent is water; and the surfactant is nonionic. 19. A method according to Claim 18 wherein the nonionic surfactant has a hydrophilic-lipophilic balance of from 11 to l6. 20. A water-miscible herblcldal concentrate comprising l<¾, to 70% of a compound of Claim 1 dissolved in 85/» to 30% of water or a water-miscible polar solvent. 21. A herblcldal concentrate according to Claim 20 further comprising a nonionic, anionic or nonionic-anionic surfactant. Claim 21 wherein the compound is l,2-dimethyl-3,5--diphenylpyrazolium methyl sulfate; the solvent is water and the surfactant is a nonionic surfactant. 23. A herbicidal composition according to Claim 22 wherein the nonionic surfactant has a hydro-philic-lipophllic balance of from 11 to l6. 2k. A compound having the formula: wherein and each represent lower alkyl groups having 1 to k carbon atoms; X represents an anion with a charge of from 1 to 3; Y, Y', Z and Z' each independently represent a member selected from the group consisting of triflyoromethyl hydrogen; halogen; nitro; alkyl, C^-C^; haloalkyl , C^-C^ ; alkoxy, C-^-C^ ; and m is an integer selected from 1, 2 and 3; provided that X~m is not I-1, CIO^-1 or CI-1 when Y, Z, Y' and Z' are hydrogen and and R2 are methyl. 2
5. A compound according to Claim 2 wherein Y, Y', Z and Z' are hydrogen; R^ and are methyl; m is 1 and X is selected from the group consisting of methyl sulfate and p-toluene sulfonate. 2
6. A compound according to Claim 2k wherein R-^ is methyl; P is alkyl, C1-CZ) ; Y , Y ' , Z and Z' each independently represent a member selected from the group consisting of hydrogen, halogen, methyl and methoxy; provided that only one of the phenyl rings is substituted para to the pyrazolium ring with a substituent other than hydrogen. 40968/3 2
7. The compound according to Claim 24: 1;2-dimethyl- 3,5-diphenylpyrazolium methyl sulfate. 2
8. The compound according to claim 24: 1 ,2-dimethyl- 3,5-diph^nylpyrazolium p_-toluenesulfonate. 2
9. . The compound according to claim 24: 1 ,2-dimethyl-3- (m-methylphenyl) -5-phenylpyrazolium.methyl sulfate. 30. A method for the preparation of a compound according to claim 24 characterized by the steps of: reacting a ketone of the . formula wherein Y, Y', Z and Z' 'are asi defined in claim 24 with a compound of the formula RNHNH- wherein R is hydrogen or lower alkyl, to form the corresponding 3,5-diphenylpyrazole; and (b) where R is lower alkyl, reacting said pyrazole with an equimolar amount of an alkylating agent fo form the corresponding pyrazolium salt of claim 24; and (c) where R is hydrogen, simultaneously or . consecutively reacting said pyrazole with two molar equivalents of one or two alkylating agents to form the corresponding pyrazolium salt of claim 24. 31. A method according to claim 30, wherein the alkylating agent is dimethyl sulfate and Y, Y1, Z and Z' are hydrogen and R is methyl. 32. A method for the preparation of a compound according to claim 24 comprising the anion exchange of a pyrazolium salt of the formula: 40968/2 wherein R^,- R2, Y, Υ' , Ζ and Ζ' are as defined. in claim 24, W is an anion and m1 is an integer selected from 1, 2 and 3. 33. A method according to claim 1 for the control of undesirable plant species, substantially as hereinbefore described. 34. Herbicidal compositions according to claim 21, substantially as hereinbefore described. 35. Compounds according to claim 24 substantially as hereinbefore described. 36. Water-miscible herbicidal concentrates, according to claim 20, substantially as hereinbefore described. S.HOROWITZ S C0< AGENTS FOR APPLICANTS
IL40968A 1971-12-17 1972-11-30 Herbicidal compositions containing 1,2-dialkyl-3,5-diaryl pyrazolium salts,some novel pyrazolium salts and process for preparing the same IL40968A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20944871A 1971-12-17 1971-12-17
US27142472A 1972-07-13 1972-07-13

Publications (2)

Publication Number Publication Date
IL40968A0 IL40968A0 (en) 1973-01-30
IL40968A true IL40968A (en) 1976-02-29

Family

ID=26904186

Family Applications (1)

Application Number Title Priority Date Filing Date
IL40968A IL40968A (en) 1971-12-17 1972-11-30 Herbicidal compositions containing 1,2-dialkyl-3,5-diaryl pyrazolium salts,some novel pyrazolium salts and process for preparing the same

Country Status (26)

Country Link
JP (1) JPS587627B2 (en)
AR (1) AR213380A1 (en)
AT (1) AT322270B (en)
BE (1) BE792801A (en)
BG (1) BG20760A3 (en)
CA (1) CA1020165A (en)
CH (1) CH578323A5 (en)
CS (1) CS196245B2 (en)
CY (1) CY942A (en)
DD (1) DD105383A5 (en)
DK (1) DK132203C (en)
ES (1) ES409722A1 (en)
FI (1) FI55752C (en)
FR (1) FR2163473B1 (en)
GB (1) GB1407278A (en)
HK (1) HK8678A (en)
IE (1) IE37196B1 (en)
IL (1) IL40968A (en)
IT (1) IT974004B (en)
MY (1) MY7800191A (en)
NL (1) NL175018C (en)
NO (1) NO136388C (en)
RO (1) RO66012A (en)
SE (1) SE400453B (en)
TR (1) TR17283A (en)
YU (2) YU39457B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2404795C2 (en) * 1974-02-01 1983-03-24 Basf Ag, 6700 Ludwigshafen 1,2-Dimethyl-3,5-diphenylpyrazolium salts and their use as herbicides
US3910949A (en) * 1974-12-09 1975-10-07 American Cyanamid Co Manufacture of 1,2-dimethyl-3,5-diphenylpyrazolium methylsulfate in a single reaction zone
FR2418625A2 (en) * 1978-03-03 1979-09-28 British Petroleum Co Compsns. contg. difenzoquat and petroleum fraction - selective herbicide for wheat, barley and winter barley

Also Published As

Publication number Publication date
AT322270B (en) 1975-05-12
NO136388C (en) 1977-08-31
IE37196L (en) 1973-06-17
NL175018B (en) 1984-04-16
TR17283A (en) 1975-03-24
CY942A (en) 1978-06-23
SE400453B (en) 1978-04-03
BE792801A (en) 1973-06-15
ES409722A1 (en) 1976-04-01
BG20760A3 (en) 1975-12-20
FI55752B (en) 1979-06-29
FR2163473B1 (en) 1977-01-14
IT974004B (en) 1974-06-20
CS196245B2 (en) 1980-03-31
MY7800191A (en) 1978-12-31
DK132203B (en) 1975-11-10
DK132203C (en) 1976-04-12
YU39457B (en) 1984-12-31
NL7217015A (en) 1973-06-19
GB1407278A (en) 1975-09-24
CA1020165A (en) 1977-11-01
RO66012A (en) 1981-08-30
DD105383A5 (en) 1974-04-20
IE37196B1 (en) 1977-05-25
CH578323A5 (en) 1976-08-13
NO136388B (en) 1977-05-23
JPS4872329A (en) 1973-09-29
FI55752C (en) 1979-10-10
JPS587627B2 (en) 1983-02-10
FR2163473A1 (en) 1973-07-27
AR213380A1 (en) 1979-01-31
NL175018C (en) 1984-09-17
YU315172A (en) 1982-02-28
IL40968A0 (en) 1973-01-30
HK8678A (en) 1978-02-24

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