Use of Alkyl Carboxylic Acid Amides as Penetration Enhancers

Abstract

Use of carboxamides of the formula (I) R 1 —CO—NR 2 R 3   (I), in which R 1 represents C 3 -C 19 -alkyl, R 2 represents C 1 -C 6 -alkyl and R 3 represents H or C 1 -C 6 -alkyl for promoting the penetration of agrochemical active substances into plants.

1 . A method for promoting the penetration of one or more agrochemical active substances into plants, wherein said agrochemical active substances are selected from the group consisting of prothioconazole, N-(3′,4′-dichloro-5-fluorobiphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide and mixtures of prothioconazole and one or more active substances selected from the group consisting of spiroxamine, tebuconazole, fluxastrobin and trifloxystrobin, comprising, applying to said plants one or more carboxamides of the formula (I)
   R 1 —CO—NR 2 R 3   (I)
 
 in which 
 R 1  represents an unbranched, saturated alkyl group having 5 to 11 carbon atoms, 
 R 2  represents C 1 -C 6 -alkyl, and 
 R 3  represents H or C 1 -C 6 -alkyl. 
 
     
     
         2 . A method according to  claim 1 , wherein
 R 2  and R 3  are methyl.   
     
     
         3 . A method according to  claim 1 , wherein said carboxamide is N,N-dimethyl n-octanamide or N,N-dimethyl n-decanamide. 
     
     
         4 . A method according to  claim 1 , wherein said one or more carboxamides is a mixture of 5% N,N-dimethyl hexanamide, 50% N,N-dimethyl octanamide, 40% N,N-dimethyl decanamide and 5% N,N-dimethyl dodecanamide, wherein the percentages are percent by weight. 
     
     
         5 . (canceled) 
     
     
         6 . A method according to  claim 1 , wherein said one or more carboxamides is applied as an aqueous spray mixture. 
     
     
         7 . A method according to  claim 1 , wherein said one or more agrochemical active substances comprises a systemic agrochemical substance. 
     
     
         8 . (canceled) 
     
     
         9 . A method according to  claim 1 , wherein said one or more agrochemical active substances is selected from the group consisting of prothioconazole and N-(3′4′-dichloro-5-fluorobiphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide. 
     
     
         10 . A method according to  claim 9 , wherein said agrochemical active substance is prothioconazole. 
     
     
         11 . A method of promoting the penetration of one or more agrochemical active substances into plants according to  claim 1 , wherein said one or more agrochemical active substances, which are selected from the group consisting of prothioconazole. N-(3′,4′-dichloro-5-fluorobiphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide and mixtures of prothioconazole and one or more active substances selected from the group consisting of spiroxamine, tebuconazole, fluoxastrobin and trifloxystrobin, is applied to the plants simultaneously or sequentially with said one or more carboxamides of the formula (I),
   R 1 —CO—NR 2 R 3   (I)
 
 wherein 
 R 1  represents an unbranched, saturated alkyl group having 5 to 11 carbon atoms, 
 R 2  represents C 1 -C 6 -alkyl, and 
 R 3  represents H or C 1 -C 6 -alkyl. 
 
     
     
         12 . A plant protection composition comprising,
 a) 1 to 80% of one or more carboxamides of the formula (I),
   R 1 —CO—NR 2 R 3   (I)
 
   wherein
 R 1  represents an unbranched, saturated alkyl group having 5 to 11 carbon atoms, 
 R 2  represents C 1 -C 6 -alkyl, and 
 R 3  represents H or C 1 -C 6 -alkyl, 
   b) 1 to 90% of one or more agrochemical active substances, which are selected from the group consisting of prothioconazole, N-(3′,4′-dichloro-5-fluorobiphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide and mixtures of prothioconazole and one or more active substances selected from the group consisting of spiroxamine, tebuconazole, fluoxastrobin and trifloxystrobin, and   c) 0 to 98% of additives wherein the percentages are percent by weight.   
     
     
         13 . A plant protection composition comprising
 a) 1 to 30% of one or more carboxamides of the formula (I),
   R 1 —CO—NR 2 R 3   (I)
 
   wherein   R 1  represents an unbranched, saturated alkyl group having 5 to 11 carbon atoms,   R 2  represents C 1 -C 6 -alkyl, and   R 3  represents H or C 1 -C 6 -alkyl,   b) 1 to 90% of one or more agrochemical active substances, which are selected from the group consisting of prothioconazole, N-(3′,4′-dichloro-5-fluorobiphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide and mixtures of prothioconazole and one or more active substances selected from the group consisting of spiroxamine, tebuconazole, fluoxastrobin and trifloxystrobin, and   c) 0 to 98% of additives and wherein the percentages are percent by weight.   
     
     
         14 . A plant protection composition according to  claim 12 , comprising, as agrochemical active substance, prothioconazole or N-(3′,4′-dichloro-5-fluorobiphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide. 
     
     
         15 . A plant protection composition according to  claim 13 , comprising, as agrochemical active substance, prothioconazole or N-(3′,4′-dichloro-5-fluorobiphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide. 
     
     
         16 . A method according to  claim 1 , wherein said one or more carboxamides of the formula (I) are formulated into a plant protection composition comprising,
 a) 1 to 90% of one or more agrochemical active substances, which are selected from the group consisting of prothioconazole, N-(3′,4′-dichloro-5-fluorobiphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide and mixtures of prothioconazole and one or more active substances selected from the group consisting of spiroxamine, tebuconazole, fluoxastrobin and trifloxystrobin,   b) 1 to 90% of one or more carboxamides of the formula (I), and   c) 0 to 98% of other additives   wherein the percentages are percent by weight.   
     
     
         17 . The method according to  claim 1  wherein said one or more agrochemical active substances is a mixture of prothioconazole and tebuconazole. 
     
     
         18 . The method according to  claim 17  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-octanamide or N,N-dimethyl n-decanamide. 
     
     
         19 . The method according to  claim 18  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-decanamide. 
     
     
         20 . The method according to  claim 1  wherein said one or more agrochemical active substances is a mixture of prothioconazole and spiroxamine. 
     
     
         21 . The method according to  claim 20  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-octanamide or N,N-dimethyl n-decanamide. 
     
     
         22 . The method according to  claim 21  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-decanamide. 
     
     
         23 . The plant protection composition according to  claim 12  wherein said one or more agrochemical active substances is a mixture of prothioconazole and tebuconazole. 
     
     
         24 . The plant protection composition according to  claim 23  wherein said one or more carboxamides of the formula (I) is N,N-dimethyl n-octanamide or N,N-dimethyl n-decanamide. 
     
     
         25 . The plant protection composition according to  claim 24  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-decanamide. 
     
     
         26 . The plant protection composition according to  claim 12  wherein said one or more agrochemical active substances is a mixture of prothioconazole and spiroxamine. 
     
     
         27 . The plant protection composition according to  claim 26  wherein said one or more carboxamides of the formula (I) is N,N-dimethyl n-octanamide or N,N-dimethyl n-decanamide. 
     
     
         28 . The plant protection composition according to  claim 27  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-decanamide. 
     
     
         29 . The method according to  claim 16  wherein said one or more agrochemical active substances comprises a mixture of prothioconazole and tebuconazole. 
     
     
         30 . The method according to  claim 29  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-octanamide or N,N-dimethyl n-decanamide. 
     
     
         31 . The method according to  claim 30  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-decanamide. 
     
     
         32 . The method according to  claim 16  wherein said one or more agrochemical active substances comprises a mixture of prothioconazole and spiroxamine. 
     
     
         33 . The method according to  claim 32  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-octanamide or N,N-dimethyl n-decanamide. 
     
     
         34 . The method according to  claim 33  wherein said one or more carboxamides of formula (I) is N,N-dimethyl n-decanamide.