Patent GB-761858-A (GB)
Title: Compositions for use as plant response agents
IPC: C07D493/08
Filed: 1953-03-25
Abstract: Plant response agents comprise a salt of a strong mineral acid with ammonia, an alkyl amine, an alkanol amine or an alkyl-alkanol amine, or a mixture of such salts, and at least one water-soluble compound the anion portion of which is of exo-cis configuration and conforms to the structure: <FORM:0761858/I/1> in which R, and R2 taken individually represent hydrogen, alkyl, alkanol or cycloalkyl radicals and taken collectively represent a polymethylene or an oxapolymethylene radical.  Specified salts of strong mineral acids are the sulphates, chlorides, nitrates, phosphates of (a) ammonia, (b) mono-, di-, and tri-alkyl ammonium having 1 to 4 carbon atoms in each alkyl group, (c) mono-, di-, and tri-alkanolammonium having 2 to 3 carbon atoms in each alkanol radical and (d) mixed alkylalkanol ammonium which is N-substituted by 2 to 3 radicals of the type and carbon content indicated.  The salts may be acid salts or normal salts in which the cations are the same or different.  The proportion of said salt (intensifier) to active ingredient is from 1 : 10 to 20 : 1, and particularly from 1 : 2 to 5 : 1, but it may be 100 : 1. Where the intensifier is a plant fertilizer e.g. ammonium sulphate, the proportion of intensifier to active ingredient may be up to 1,000 : 1.  The compositions may be in the form of dusts or sprays. Dusts with finely divided solids e.g. clays such as Fuller's earth, pyrophyllite, talc, bentonite, kieselguhr and diatomaceous earth; sulphur, volcanic ash, calcium carbonate, lime, lignin, wood flour, powdered wheat, soyabean, potato and cottonseed. p  Sprays may be in the form of a solution, suspension, dispersion or emulsion in aqueous or non-aqueous media.  Dispersions or emulsions may be prepared with e.g. fatty alcohol sulphates, aliphatic or aromatic sulphonates, alkyl polyglycol ethers or analogous thioethers.  Solutions may contain wetting agents and humectants such as glycerine, diethylene glycol, ethylene glycol, polyethylene glycol, and water-soluble sugars, gums and starch. Fungicides, insecticides, bactericides and other plant response agents may be present.  Salts of 3, 6-endoxohexahydophthalamic acid are (a) mono-, di- or tri-alkylammonium salts of 1 to 12C atoms in each alkyl radical, the totality of C atoms preferably being not more than 12, (b) mono-, di- or tri-alkanolammonium preferably having 2 to 3 carbon atoms in each alkanol radical, (c) mixed alkylalkanol ammonium salts of 1 to 4 C alkyl and 2 to 3 carbon alkanol and (d) mono- and di-cycloalkyl ammonium of 3 to 6 carbon atoms in each cycloalkyl radical, the totality of carbon atoms being not more than 12.  Many specific examples are given of salts applicable to both the active ingredient and to the intensifier.  Specification 760,686 is referred to.ALSO:Herbicides, defoliants and like plant response agents comprise a salt of a strong mineral acid with ammonia, an alkyl amine, an alkanol amine or an alkylalkanol amine, or a mixture of such salts, and at least one water-soluble compound the anion portion of which is of exo-cis configuration and conforms to the structure <FORM:0761858/VI/1> in which R1 and R2 taken individually represent hydrogen, alkyl, alkanol or cycloalkyl radicals and taken collectively represent a polyethylene or a oxapolymethylene radical. Specified salts of strong mineral acids are the sulphates, chlorides, nitrates, phosphates of (a) ammonia (b) mono-, di, and tri-alkyl ammonium having 1 to 4 carbon-atoms in each alkyl group (c) mono-, di-, and tri-alkanolammonium having 2 to 3 carbon atoms in each alkanol radical and (d) mixed alkylalkanol ammonium which is N-substituted by 2 to 3 radicals of the type and carbon content indicated.  The salts may be acid salts or normal salts in which the cations are the same or different.  The proportion of said salt (intensifier) to active ingredient is from 1:10 to 20:1 and particularly from 1:2 to 5:1, but it may be 100:1.  Where the intensifier is a plant fertilizer, e.g. ammonium sulphate, the proportion of intensifier to active ingredient may be up to 1.000:1. The compositions may be in the form of dusts or sprays.  Dusts with finely divided solids, e.g. clays such as fullers earth, pyrophyllite, talc, bentonite, kieselguhr and diatomaceous earth; sulphur, volcanic ash, calcium carbonate, lime, lignin, wood flour, powdered wheat, soyabean, potato and cottonseed.  Sprays may be in the form of a solution, suspension, dispersion or emulsion in aqueous or non-aqueous media.  Dispersions or emulsions may be prepared with e.g. fatty alcohol sulphates, aliphatic or aromatic sulphonates, alkyl polyglycol ethers or analogous thioethers.  Solutions may contain wetting agents and humectants such as glycerine, diethylene glycol, ethylene glycol, polyethylene glycol, and water-soluble sugar, gums and starch.  Fungicides, insecticides, bactericides and other plant response agents may be present. Salts of 3, 6-endoxohexahydophthalamic acid are (a) monodi- or tri-alkylammonium salts of 1 to 12 C atoms in each alkyl radical, the totality of C atoms preferably being not more than 12 (b) mono-, di- or tri-alkanol-ammonium preferably having 2 to 3 carbon atoms in each alkanol radical (c) mixed alkylalkanol ammonium salts of 1 to 4 C alkyl and 2 to 3 carbon alkanol and (d) mono- and di-cycloalkyl ammonium of 3 to 6 carbon atoms in each cycloalkyl radical, the totality of carbon atoms being not more than 12.  Many specific examples are given of salts applicable to both the active ingredient and to the intensifier.  Specification 760,686 is referred to.