The Chalcogen, X, Is In A -c(=x)- Group Patents (Class 558/178)
  • Patent number: 4950657
    Abstract: O,S-Dialkyl ((piperazinyl)carbonyl)phosphoramidothioates are prepared by the reaction of O,S-dialkyl phosphoroisocyanatidothioates with substituted piperazines and found to be effective plant systemic and contact insecticides. ((4-(1,1-Dimethylethyl)-1-piperazinyl)carbonyl)phosphoramidothioate, for example, is prepared from O,S-dimethyl phosphoroisocyanatidothioate and 4-(1,1-dimethylethyl)piperazine and found to control aster leafhoppers when applied to rice plants.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: August 21, 1990
    Assignee: The Dow Chemical Company
    Inventors: Walter Reifschneider, Barat Bisabri-Ershadi, James E. Dripps, J. Brian Barron
  • Patent number: 4918064
    Abstract: A class of phenyl glycine compounds is described for treatment to reduce neurotoxic injury associated with anoxia or ischemia which typically follows stroke, cardiac arrest or perinatal asphyxia. The treatment includes administration of a phenyl glycine compound alone or in a composition in an amount effective as an antagonist to inhibit excitotoxic actions at major neuronal excitatory amino acid receptor sites.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: April 17, 1990
    Assignee: G. D. Searle & Co.
    Inventors: Alex A. Cordi, Michael L. Vazquez
  • Patent number: 4885284
    Abstract: A compound of the formula: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 which may be the same or different, is hydrogen or C.sub.1 -C.sub.4 alkyl; one of X.sup.1 and X.sup.2 is nitro, fluroine, chlorine, difluoromethyoxy or trifluoromethyl and the other is hydrogen, or both of X.sup.1 and X.sup.2 are chlorine; and Y is ##STR2## wherein A is C.sub. -C.sub.6 alkylene, each of Ar.sup.1 and Ar.sup.2 which may be the same or different, is phenyl which may be substituted by chlorine, fluorine or C.sub.1 -C.sub.3 alkoxy, and m is an integer of from 0 to 4, or Y is ##STR3## wherein A, Ar.sup.1 and Ar.sup.2 are as defined above when that both X.sup.1 and X.sup.2 are chlorine; or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: December 5, 1989
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Kiyotomo Seto, Sakuya Tanaka, Ryozo Sakoda
  • Patent number: 4879400
    Abstract: A process for producing an .alpha.-(benzylidene)acetonylphosphonate of the formula: ##STR1## wherein Ar is phenyl substituted by at least one substituent selected from the group consisting of fluorine, chlorine, bromine, nitro, chloromethyl, dichloromethyl, trichloromethyl, trifluoromethyl, --CO.sub.2 R.sup.7 wherein R.sup.7 is C.sub.1 -C.sub.5 alkyl, --CONR.sup.7 R.sup.8 wherein R.sup.7 is as defined above and R.sup.8 is C.sub.1 -C.sub.5 alkyl, --C(O)R.sup.7 wherein R.sup.7 is as defined above, --OC(O)R.sup.7 wherein R.sup.7 is as defined above, --OSO.sub.3 R.sup.7 wherein R.sup.7 is as defined above, --OCF.sub.3, --S(.dbd.O).sub.2 R.sup.7 wherein R.sup.7 is as defined above, --CN and --SO.sub.3 R.sup.7 wherein R.sup.7 is as defined above, and each of R.sup.1 and R.sup.2 which may be the same or different is a saturated or unsaturated C.sub.1 -C.sub.12 aliphatic group, or R.sup.1 and R.sup.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: November 7, 1989
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Kiyotomo Seto, Hiroo Matsumoto, Ryozo Sakoda
  • Patent number: 4851161
    Abstract: .beta.-substituted polyfluoropropionate salts, derivatives and copolymers and processes for the preparation thereof.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: July 25, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Carl G. Krespan
  • Patent number: 4772406
    Abstract: Hydrocarbon compositions, including oligomers and polymers, for use in improving the thermo-oxidative stability and the dispersancy and viscosity index improvement (for high molecular weight) properties of fuels and lubricating oils are disclosed. These compositions are adducts of sulfur mono- and diimides having one of the following formulae: ##STR1## wherein r is a hydrocarbyl containing at least 18 carbon atoms, in which X.dbd. can be O.dbd., S.dbd., Y'--N.dbd., i is 0 or 1, --Y and Y'-- can be ##STR2## wherein R' is hydrocarbyl or hydrocarbyloxy, R" is hydrocarbyl, R'" and R"" are hydrocarbyloxy, and each of R', R", R'", and R"" is from 1 to 20 carbon atoms.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: September 20, 1988
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Stanley J. Brois
  • Patent number: 4686210
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is C.sub.1 -C.sub.6 alkyl; R.sub.3 is hydrogen or methyl; and R.sub.4 is C.sub.1 -C.sub.4 alkyl; R.sub.3 and R.sub.5 taken together form a trimethylene chain, are insecticides.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: August 11, 1987
    Assignee: Stauffer Chemical Company
    Inventor: Charles G. Chavdarian
  • Patent number: 4683224
    Abstract: Compounds of the formula ##STR1## wherein the symbols have assigned meanings, and their use as insecticides, miticides and/or nematicides.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: July 28, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mohamed A. H. Fahmy
  • Patent number: 4636495
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is C.sub.1 -C.sub.6 alkyl; and R.sub.3 is phenyl or substituted phenyl, are insecticides.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: January 13, 1987
    Assignee: Stauffer Chemical Company
    Inventors: Charles G. Chavdarian, Alexandra B. Shortt
  • Patent number: 4633013
    Abstract: Disclosed is a process for the preparation of .alpha.-haloacetoacetic esters by the reaction of an alkali metal alkoxide with a 5-halo-4H-1,3-dioxin-4-one compound, the desired product being obtained as an alkali metal salt which may be converted to the corresponding free ester by treating with acid.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: December 30, 1986
    Assignee: Eastman Kodak Company
    Inventor: Robert J. Clemens
  • Patent number: 4627870
    Abstract: Diphenyl ether derivatives of the formula ##STR1## and tautomers thereof wherein X is selected from the group consisting of chlorine, bromine, iodine, fluorine, methyl, cyano or hydrogen; Y is CF.sub.n H.sub.3-n or chlorine, wherein n is an integer from 0 to 3; R is selected from the group consisting of nitro, hydrogen or halogen; R" is hydrogen, alkyl, phenyl, or substituted alkyl wherein the alkyl group has from 1 to 10 carbon atoms; R"' is the same or different and is selected from C.sub.1 -C.sub.10 alkyl, phenyl or hydrogen; and agriculturally acceptable salts thereof. The compounds are effective as herbicides.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: December 9, 1986
    Assignee: Stauffer Chemical Company
    Inventor: Sreeramulu Nagubandi
  • Patent number: 4618710
    Abstract: An optically active alpha-amino acid derivative having the formula: ##STR1## wherein: X is OH, Cl, Br, I, or OCOR.sub.3 ;Y is a radical selected to stabilize the alpha carbon atom of the alpha-amino acid derivative sufficiently to prevent significant change in symmetry thereof during replacement of X with an alkyl, aryl, alkenyl, alkynyl, alkaryl, aralkyl, alkenaryl or alkynaryl radical, or such radical having one or more chemical constituents thereon; andR.sub.1 and R.sub.2 are different from one another and are each hydrogen or an alkyl, aryl, alkenyl, alkynyl, alkaryl, aralkyl, alkenaryl, or alkynaryl radical, or such radical having one or more non-protic chemical constituents thereon is conventionally synthesized from the corresponding alpha-amino acid. The ##STR2## portion of the above derivative is converted to a ketone functionality without racemization.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: October 21, 1986
    Assignee: The Regents of the University of Calif.
    Inventors: Henry Rapoport, Thomas F. Buckley, III