Abstract: Pyrazole sulfonylureas are useful as pre- and post-emergence herbicides. Typical of this group is 3-[[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]aminosulfonylmethyl]-1,5-di methyl-1H-pyrazole-4-carboxylic acid, ethyl ester.
Abstract: In the preparation of a cinnamic acid by reacting the corresponding benzaldehyde with ketene in the presence of a catalyst, the improvement which comprises using as the catalyst an iron and/or zinc salt of a mono- or di-carboxylic acid with 2 to 20 carbon atoms containing free carboxylic acid and/or anhydride, and then splitting the reaction product in the temperature range from 100.degree. to 250.degree. C. with an acid or basic catalyst.
Type:
Grant
Filed:
October 4, 1985
Date of Patent:
September 2, 1986
Assignee:
Bayer Aktiengesellschaft
Inventors:
Alfons Dorlars, Heinz U. Blank, Herbert Nordt, deceased, Viktor Trescher
Abstract: Aromatic compounds which contain perfluorinated side-chains bonded via a heteroatom are prepared by treating aromatic compounds, which contain side-chains which are perhalogenated, but only partially fluorinated, and bonded via heteroatom, with a catalyst capable of transferring halogen atoms.
Abstract: Novel esters in all possible isomeric forms and mixtures thereof of the formula ##STR1## wherein R is selected from the group consisting of (a) optionally unsaturated alkyl of 1 to 18 carbon atoms and optionally unsaturated cycloalkyl or cycloalkylalkyl of 3 to 8 carbon atoms optionally substituted with at least one member of the group consisting of halogen, --OH, --SH, --OR', --SR', --NO.sub.2, ##STR2## --SO.sub.2 AlK.sub.2, --SO.sub.3 AlK.sub.3, aryl optionally substituted with at least one member of the group consisting of --OH, alkoxy of 1 to 8 carbon atoms, alkyl of 1 to 8 carbon atoms, halogen, --CF.sub.3, --OCF.sub.3, --SCF.sub.3 and ##STR3## R' is alkyl of 1 to 8 carbon atoms, R" and R'" are individually selected from the group consisting of hydrogen and alkyl of 1 to 8 carbon atoms, AlK.sub.1, AlK.sub.2 and AlK.sub.
Type:
Grant
Filed:
October 28, 1983
Date of Patent:
February 11, 1986
Assignee:
Roussel Uclaf
Inventors:
Jean Tessier, Andre Teche, Jean-Pierre Demoute
Abstract: In a process for producing an iodo-aromatic compound which comprises iodinating an aromatic compound having an electron-donating substituent bonded to the benzene ring with iodine in the presence of a solvent, the improvement wherein about 1/2 to about 10 moles, per mole of iodine added to the reaction system, of nitrogen dioxide (NO.sub.2) is added in the form of NO.sub.2 to the reaction system, and the reaction is carried out in the presence of nitrogen dioxide.
Abstract: Piperazine and homopiperazine compounds of the formula: ##STR1## in which: A is a hydrocarbon radical from C.sub.3 to C.sub.5, in a straight or branched chain, which may contain one or two double bonds, and optionally substituted by one or more OH;B is CH or a nitrogen atom;m is 2 or 3;X--Y-- represents --CH.dbd.CH--(CR'R").sub.n - in which n is zero or 1, and R' and R" are hydrogen or methyl;Z is oxygen or sulfur,R is hydrogen, alkyl from C.sub.1 to C.sub.5, cycloalkyl from C.sub.3 to C.sub.7, or phenyl optionally substituted by fluorine, chlorine or alkyl from C.sub.1 to C.sub.5, andT is hydrogen, fluorine, chlorine or alkyl from C.sub.1 to C.sub.5.These compounds and physiologically tolerable acid addition salts thereof may be used as medicines especially in the treatment of all kinds of tissular hypoxia.
Type:
Grant
Filed:
June 20, 1984
Date of Patent:
July 16, 1985
Assignee:
Adir
Inventors:
Gilbert Regnier, Michel Laubie, Jacques Duhault
Abstract: Fluorine substituted pyridine methyl esters having the formula ##STR1## wherein R represents ##STR2## in which X is chlorine or difluoromethoxy; Y is chlorine or tert-butyl; and Z is a halogen atom, are novel compounds which are useful as insecticides and acaricides.
Abstract: Benzyl esters of the formula ##STR1## in which n is 1,2,3,4, or 5,R.sup.2 is hydrogen, C.sub.1-4 -alkyl, cyano or ethynyl,R.sup.3 is radical of a carboxylic acid customary in pyrethroids or pyrethroid-like compounds, andat least one R.sup.1 is fluoroalkoxy or fluoroalkylmercapto, or two together are fluoromethylene- or fluoroethylene-dioxy, and the others, if present, are hydrogen or various radicals,which possess arthropodicidal properties. Various alcohols, amines, aldehydes, halides, and the like, corresponding to the alcohol moieties of the esters are also synthesized.
Type:
Grant
Filed:
July 30, 1981
Date of Patent:
March 20, 1984
Assignee:
Bayer Aktiengesellschaft
Inventors:
Reinhard Lantzsch, Albrecht Marhold, Wolfgang Behrenz, Ingeborg Hammann
Abstract: 3,5-Dihalogeno-1,2-methylenedioxybenzenes of the formula ##STR1## in which R is hydrogen, halogen, cyano or an optionally substituted alkyl, alkenyl, alkynyl, aralkyl or acyl radical, andX and Y each independently is halogen,which synergize with known arthropodicides.
Abstract: Novel 3-isoxazolidinone compounds and novel hydroxamic acid intermediates from which they are prepared exhibit herbicidal activity to grassy and broad-leaf plant species while leaving legumes, especially soybeans, unaffected. The preparation and herbicidal activity of the compounds is exemplified.
Abstract: Certain polybutylbenzylphenols and benzyl-3,4-methylenedioxybenzenes are useful for insect control especially as insect chemosterilants and oviposition inhibitors. The benzyl-3,4-methylenedioxybenzenes also find utility as growth inhibitors for mosquito larvae.
Type:
Grant
Filed:
March 29, 1979
Date of Patent:
November 2, 1982
Assignee:
The United States of America as represented by the Secretary of Agriculture
Abstract: Certain polybutylbenzylphenols and benzyl-3,4-methylenedioxybenzenes are useful for insect control especially as insect chemosterilants and oviposition inhibitors. The benzyl-3,4-methylenedioxybenzenes also find utility as growth inhibitors for mosquito larvae.
Type:
Grant
Filed:
November 5, 1981
Date of Patent:
August 3, 1982
Assignee:
The United States of America as represented by the Secretary of Agriculture
Abstract: Novel 1-(1,3-dioxolan-2-ylmethyl)-1H-imidazoles and 1H-1,2,4-triazoles wherein the 1,3-dioxolane ring is substituted in the 4- and in the 5-positions, said compounds having useful antimicrobial properties.
Type:
Grant
Filed:
November 3, 1980
Date of Patent:
May 11, 1982
Assignee:
Janssen Pharmaceutica, N.V.
Inventors:
Jan Heeres, Leo Backx, Willy Van Laerhoven, Elmar Sturm