Patents Represented by Attorney Marian T. Thomson
  • Patent number: 5410074
    Abstract: A compound of formula (I) ##STR1## where R.sup.1, R.sup.2, and R.sup.3 are alkyl or aralkyl or any two of R.sup.1, R.sup.2, and R.sup.3 together form a cycloalkyl ring and Y is S or S(O) is prepared by reacting N-phosphonomethylglycine with a compound of formula (II) ##STR2## where m is 0 or 1 in the presence of a base. A preferred compound of formula (I) is trimethylsulphonium N-phosphonomethylglycine and a preferred compound of formula (II) is trimethylsulphonium hydrogen sulphate.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: April 25, 1995
    Assignee: Imperial Chemical Industries PLC
    Inventors: Raymond V. H. Jones, Elizabeth S. C. Simpson
  • Patent number: 5395817
    Abstract: Substituted N-arylindoles, a process for producing them and their use as herbicides. In particular, substituted N-arylindoles of the formula ##STR1## are disclosed in which: R is hydrogen; halogen; nitro; cyano; alkyl; alkoxy; alkenyloxy; alkynyloxy; alkoxyalkyl; carbonylalkoxy; alkyloxyalkoxy; cyanoalkoxy; benzyloxy; alkoxycarbonylalkoxy; alkylcarbonylalkoxy; haloalkyl; hydroxyalkyl; formyl; azido; carboxy or a salt thereof; amino; substituted amino; carboxyamido; substituted carboxyamido; sulfonamido wherein the N is substituted with hydrogen and/or alkyl; or YR.sup.4 wherein Y is O or S(O).sub.m and R.sup.4 is hydrogen, alkyl, haloalkyl, cyanoalkyl, alkoxycarbonylalkyl, hydroxycarbonylalkyl or aminocarbonylalkyl; R.sup.1 is hydrogen, alkyl, halogen, cyano, haloalkyl, alkoxy, or carboxy or a salt thereof; X is hydrogen, halogen, cyano, nitro, alkylthio, alkylsulfinyl, alkylsulfonyl, haloalkyl or alkoxy; R.sup.3 is hydrogen, haloalkyl, haloalkoxy, cyano, halogen, or SO.sub.y R.sup.5 wherein R.sup.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: March 7, 1995
    Assignee: Imperial Chemical Industries PLC
    Inventors: Ference M. Pallos, Christoper J. Mathews
  • Patent number: 5393732
    Abstract: A herbicidal compound of formula (I) ##STR1## or a salt, tautomer or cyclic derivative thereof; where R.sup.1 and R.sup.2 are hydrogen and A is an optionally substituted saturated or unsaturated chain or ring of three carbon atoms.Methods for preparing these compounds, intermediates used in the preparation and herbicidal compositions containing them are also described and claimed.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: February 28, 1995
    Assignee: Zeneca Limited
    Inventors: John M. Cox, Peter Bellini, Roger Barrett, Russell M. Ellis, Timothy R. Hawkes
  • Patent number: 5369086
    Abstract: Substituted N-benzotriazoles of the general formula ##STR1## exhibit herbicidal activity. Herbicidal compositions and related methods of using the substituted N-benzotriazoles are also disclosed.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: November 29, 1994
    Assignee: Zeneca Limited
    Inventors: Donald R. James, Raymond A. Felix
  • Patent number: 5342837
    Abstract: Fungicidal compounds having the formula (I): ##STR1## and stereoisomers thereof, wherein A is hydrogen, halo, hydroxy, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 haloalkyl, C.sub.1-4 haloalkoxy, C.sub.1-4 alkylcarbonyl, C.sub.1-4 alkoxycarbonyl, phenoxy, nitro or cyano; R.sup.1 and R.sup.2, which may be the same or different, are hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted heterocyclylalkyl, optionally substituted cycloalkylalkyl, optionally substituted aralkyl, optionally substituted aryloxyalkyl, optionally substituted heterocyclyloxyalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted aryl, optionally substituted heterocyclyl, optionally substituted aryloxy, optionally substituted heterocyclyloxy, nitro halo cyano, --NR.sup.3 R.sup.4, --CO.sub.2 R.sup.3, --CONR.sup.3 R.sup.4, --COR.sup.3, --S(O).sub.n R.sup.3 wherein is 0, 1 or 2, (CH.sub.2).sub.m PO(OR.sup.3).sub.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: August 30, 1994
    Assignee: Imperial Chemical Industries PLC
    Inventors: John M. Clough, Christopher R. A. Godfrey, Paul J. de Fraine, Ian R. Matthews
  • Patent number: 5314865
    Abstract: Compounds having the formula ##STR1## wherein R is C.sub.1 -C.sub.6 lower alkoxy; C.sub.1 -C.sub.6 lower alkylthio; 3- to 6-membered heterocycle or substituted heterocycle; phenyl or substituted phenyl; R.sub.1 is hydrogen or C.sub.1 -C.sub.3 lower alkyl; R.sub.2 is selected from the group consisting of hydrogen, C.sub.1 -C.sub.3 lower alkyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.1 -C.sub.3 lower alkylalkoxy or combinations thereof; R.sub.3 and R.sub.4 are independently selected from the group consisting of hydrogen; C.sub.1 -C.sub.6 lower alkyl; C.sub.2 -C.sub.6 lower alkenyl; C.sub.2 -C.sub.6 lower alkenyl; 3- to 6-membered heterocycle or substituted heterocycle; alkyl heterocycle or substituted alkyl heterocycle; phenyl or substituted phenyl; and where R.sub.3 or R.sub.4 is a basic heterocycle, herbicidally acceptable organic or inorganic salts thereof are herbicidally active.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: May 24, 1994
    Assignee: ICI Americas Inc.
    Inventors: Francis H. Walker, Don R. Baker