1929-77-7Relevant academic research and scientific papers
Facile synthesis of S-alkyl thiocarbamates through reaction of carbamoyl lithium with elemental sulfur
Mizuno, Takumi,Nishiguchi, Ikuzo,Okushi, Tsuneo,Hirashima, Tsuneaki
, p. 6867 - 6868 (1991)
Efficient synthesis of S-alkyl thiocarbamates was developed. The key step of this synthetic method is a conversion of carbamoyl lithium, generated from lithium dialkylamide and carbon monoxide, to lithium thiocarbamate by addition of elemental sulfur.
Soluble polymer based matrix for chemically active water insoluble components
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, (2008/06/13)
This invention relates to a water soluble matrix composition comprising an anionic surfactant, a C6 to C18 alkyl pyrrolidone, urea and a water insoluble copolymer of vinyl pyrrolidone with not more than 50 wt. % of a comonomer selected from the group of an α-olefin, vinyl acetate, an acrylic or methacrylic acid ester and methacrylamide as a free flowing particulate solid which matrix is suitably mixed with a water insoluble, chemically active component, such as an agrochemical, to provide a clear sprayable film forming emulsion, such as a non-leachable film on a plant or other substrate surface. The invention also relates to the method of preparing the matrix and to the incorporation of an agrochemical concentrate and plant spray composition.
REACTIONS OF UNSTABLE DIALKYLCARBAMOYL LITHIUMS WITH SULFUR COMPOUNDS
Mizuno, Takumi,Nishiguchi, Ikuzo,Hirashima, Tsuneaki
, p. 2403 - 2412 (2007/10/02)
Unstable dialkylcarbamoyl lithiums, generated from the reaction of lithium dialkylamides with carbon monoxide, were successfully trapped by sulfur compounds (elemental sulfur, disulfides, carbon disulfide, and carbonyl sulfide) at low temperature, through their potent affinity with a sulfur atom.These efficient reactions were also applied to development of a facile synthetic method for thiocarbamates, useful herbicides, and thiooxamates.
Substituted pyridinesulfonamide compounds or their salts, process for preparing the same, and herbicides containing the same
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, (2008/06/13)
A substituted pyridinesulfonamide compound or its salt represented by the following general formula (I): wherein R1 is an unsubstituted or substituted alkyl group; R2 is an unsubstituted or substituted alkyl group, or an unsubstituted or substituted alkoxy group; and X and Y are each independently a member selected from the group consisting of alkyl groups and alkoxy groups, is disclosed. This compound is useful as the effective ingredient of a herbicide showing a wide weed-control spectrum even if used in a small amount.
Benzhydryl compounds as herbicide antidotes
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, (2008/06/13)
Acids, esters, amides and salts of benzhydryl compounds are antidotes for thiocarbamate and acetamide herbicides. These antidote compounds are especially effective to safen acetamide herbicides used to control grassy weeds and broadleaf weeds in rice, sorghum, corn and wheat.
Oxime ethers as herbicidal safeners
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, (2008/06/13)
The invention relates to novel oxime ethers of the formula I STR1 wherein R1 is hydrogen, halogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, lower alkylthio, lower haloalkylthio, lower alkylsulfinyl, lower alkylsulfonyl, lower haloalkylsulfinyl, lower haloalkylsulfonyl or nitro, each of R2 and R3 is hydrogen, halogen, lower alkyl, lower alkoxy or lower haloalkoxy, and Q is an unsubstituted or substituted lower alkyl, lower alkenyl, lower alkynyl or cycloalkyl group, a lower alkanoyl radical, an aliphatic, cycloaliphatic, aromatic or heterocyclic acyl radical which may be substituted or unsubstituted, a carbonyl or thiocarbonyl radical, an aryl or aralkyl radical, an acylimidomethyl radical, a phthalimidomethyl radical or a heterocyclic radical. These compounds are able to act as antidotes or safeners for protecting cultivated plants from the phytotoxic action of aggressive herbicides. Preferred crops are sorghum, cereals, maize and rice, and herbicides are chiefly chloroacetanilides and thiocarbamates.
Herbicide composition
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, (2008/06/13)
A herbicide composition, particularly effective for the post-emer-gence deweeding of sugarbeet, forage beet and vegetable beet, is obtained by mixing with inert substances and adjuvants the compound of formula: with one or more compounds of formula: where R1 and R2 can be alkyls with 2-4 carbon atoms, or R1 and R2 may form a nitrogenous heterocyclic ring with 5 or 6 carbon atoms; and A can be alkyl with 2-4 carbon atoms, or benzyl eventually replaced by halogens on the ring, or even 1,1-dimethylbenzyl eventually replaced by halogen; possibly also adding one or more compounds of formula: where R4 and R5 are alkyls with 1-4 carbon atoms; B can be -CH2-O-, -CH2--CH2-O-, R3 is alkyl with 1-4 carbon atoms; and X can be chlorine or bromine.
Oxime ethers, the preparation thereof, compositions containing them and use thereof
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, (2008/06/13)
The invention relates to oxime ethers of the formula I STR1 wherein n is 1 or 2, each of R1 and R2 is hydrogen or C1 -C4 alkyl each of R3 and R4 is hydrogen, halogen, C1 -C4 alkyl, C1 -C4 haloalkyl, C1 -C4 alkoxy, C1 -C4 haloalkoxy, C1 -C4 alkylthio, C1 -C4 haloalkylthio, C1 -C4 alkylsulfinyl, C1 -C4 alkylsulfonyl, C1 -C4 haloalkylsulfinyl, C1 -C4 haloalkylsulfonyl or nitro; each of R5 and R6 independently of the other is hydrogen, C1 -C4 alkyl, C1 -C4 haloalkyl, phenyl or phenyl which is substituted by halogen, C1 -C4 alkyl, C1 -C4 haloalkyl, C1 -C4 alkoxy, C1 -C4 haloalkoxy, C1 -C4 alkylthio, C1 -C4 alkylsulfinyl, C1 -C4 alkylsulfonyl, carboxyl, carbamoyl, C 1 -C4 alkylcarbamoyl, nitro or cyano, or R5 and R6 together are also a 2- to 6-membered alkylene or alkenylene chain which may be substituted by C1 -C4 alkyl radicals; X is hydrogen, cyano, nitro, chlorine, C1 -C4 alkyl, C1 -C4 haloalkyl, C3 -C6 cycloalkyl, carboxyl, carbamoyl, C1 -C4 alkylcarbonyl, C1 -C4 alkoxycarbonyl or C1 -C4 alkylcarbamoyl. The oxime ethers of the formula I are able to act as antidotes or safeners to protect cultivated plants from the phytotoxic effects of herbicides. Such cultivated plants are preferably sorghum, cereals, maize and rice.
Haloacylaminoalkylphosphonates
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, (2008/06/13)
When applied as safeners, the haloacylaminoalkylphosphinates, haloacylaminoalkylphosphinates and haloacylaminoalkylphosphine oxides of the formula I below are able to protect cultivated plants from the phytotoxic effects of herbicides. Suitable crops are preferably sorghum, cereals, rice, maize and soya beans and the herbicides employed are chloroacetanilides and thiocarbamates. The haloacylaminoalkylphosphonates, haloacylaminoalkylphosphinates and haloacylaminoalkylphosphine oxides have the formula I STR1 wherein R1 is C1 -C4 alkyl, C1 -C4 alkoxy, C2 -C4 alkenyloxy, C2 -C4 alkynyloxy, C1 -C4 haloalkyl, C2 -C8 alkoxyalkoxy or C1 -C4 cyanoalkoxy, R2 is hydrogen or a substituent as defined for R1, R3 and R4 are each independently hydrogen, C1 -C4 alkyl or one of R3 and R4 is also a radical STR2 or both taken together with the carbon atom to which they are attached are also a C3 -C11 cycloalkyl radical, R5 is hydrogen, C1 -C4 alkyl, C3 -C7 cycloalkyl, C2 -C4 alkenyl, C2 -C4 alkynyl, C2 -C8 alkoxyalkyl, C1 -C4 haloalkoxy or aralkyl, R6 is hydrogen or C1 -C4 alkyl, X1 and X2 are each independently halogen or one of X1 and X2 is also hydrogen, and n is 1, 2 or 3.
Novel oxime ethers, the preparation thereof, compositions containing them and the use thereof
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, (2008/06/13)
The invention relates to novel oxime ethers of the formula I STR1 wherein R1 is hydrogen, halogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, lower alkylthio, lower haloalkylthio, lower alkylsulfinyl, lower alkylsulfonyl, lower haloalkylsulfinyl, lower haloalkylsulfonyl or nitro, each of R2 and R3 is hydrogen, halogen, lower alkyl, lower alkoxy or lower haloalkoxy, and Q is an unsubstituted or substituted lower alkyl, lower alkenyl, lower alkynyl or cycloalkyl group, a lower alkanoyl radical, an aliphatic, cycloaliphatic, aromatic or heterocyclic acyl radical which may be substituted or unsubstituted, a carbonyl or thiocarbonyl radical, an aryl or aralkyl radical, an acylimidomethyl radical, a phthalimidomethyl radical or a heterocyclic radical. These compounds are able to act as antidotes or safeners for protecting cultivated plants from the phytotoxic action of aggressive herbicides. Preferred crops are sorghum, cereals, maize and rice, and herbicides are chiefly chloroacetanilides and thiocarbamates.
