Abstract: A method for preparing N-phosphonomethylglycine comprising (a) O,O-dialkylaminomethylphosphonate with formaldehyde to produce a triazine; (b) reacting the triazine formed in step (a) with an acyl halide to form the O,O-dialkyl-N-phosphonomethyl-N-chloromethyl acetamide of the acyl halide; (c) reacting the amide formed in step (b) with metal cyanide to form O,O-dialkyl-N-cyanomethyl-N-acetamide; and (d) hydrolyzing the acetamide formed in step (c) to yield N-phosphonomethylglycine.
Abstract: A method of preparing N-phosphonomethylglycine comprising (a) reacting a triazine with an acyl halide to form the N-cyanomethyl-N-halomethyl amide of the acyl halide; reacting the said amide with a phosphite to form a phosphonate compound; and hydrolyzing said phosphonate to yield N-phosphonomethylglycine.
Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.4 alkyl, and R.sub.2 is C.sub.1 -C.sub.4 alkyl, which are useful for controlling tobacco budworm.
Abstract: Compounds having the structural formula ##STR1## wherein R is alkyl, cycloalkyl, haloalkyl, alkenyl, alkylthio, alkoxy, --NH-alkyl, ##STR2## phenyl or monohalophenyl; and X is hydrogen; alkyl; monohalo; dihalo or nitro and intermediate compounds having the structural formula ##STR3## wherein X' is defined as above excluding hydrogen, both of which compounds are useful as herbicides.
Abstract: A process for preparing N-phosphonomethylglycine which comprises:(1) reacting a primary amine with formaldehyde to produce N,N', N"-tris-substituted-hexahydro-s-triazine;(2) reacting the triazine with an haloacetyl halide, preferably chloroacetyl chloride, to form the N-(substituted)-N-halomethyl acetamide of the haloacetyl halide;(3) reacting the amide with O,O-di-(substituted)-aminomethylphosphonate to form O,O-di-(substituted)-1-phosphonomethyl-3-(substituted)-1,3-imidazol-4-one; and(4) hydrolyzing the 1,3-imadazol-4-one to yield N-phosphonomethylglycine.
Abstract: A method of preparing N-phosphonomethylglycine comprising (a) reacting a substituted triazine with an acyl halide to form the N-carboalkoxymethyl-N-halomethyl amide of the acyl halide; reacting the said amide with a phosphite to form a phosphonate compound; and hydrolyzing said phosphonate to yield N-phosphonomethylglycine.
Abstract: A method of separating magnesium from wet process superphosphoric acid by filtration characterized by no or minimizing agitation during the crystallization of the magnesium in order to form readily filterable agglomerates of MgH.sub.2 P.sub.2 O.sub.7.
Abstract: A method of increasing the yield of legumes (soybeans) utilizing a compound of the formula ##STR1## where R is chloromethyl or dichloromethyl; R.sup.1 is lower alkyl, vinyl or phenyl; R.sup.2 is hydrogen or lower alkyl and R.sup.3 is hydrogen or lower alkyl.
Abstract: N-tetrachloroethylthio benzoyl anilide compounds having the formula ##STR1## in which R is chlorine, hydrogen, or trifluoromethyl and X is hydrogen or fluorine, useful as acaricides and to control mosquitoes.
Abstract: Herbicidal active sulfoxide and sulfone compounds and their method of use as described herein. The compounds have the following generic formula: ##STR1## wherein n is 1 or 2; R is selected from the group consisting of lower alkyl and lower haloalkyl; R.sub.1 and R.sub.
Abstract: A process for manufacturing sulfoxide compounds is described herein. The process involves the reaction of certain thiocarbamic acid esters with an oxidizing agent at reduced temperatures.
Abstract: Herbicidal active sulfoxide and sulfone compounds and their method of use as described herein. The compounds have the following generic formula: ##STR1## wherein n is 1 or 2; R is selected from the group consisting of lower alkyl and lower haloalkyl; R.sub.1 and R.sub.
Abstract: A froth flotation method for the separation of trona from ground trona ore slurried in a saturated brine solution of sodium carbonate and sodium bicarbonate by using organic compounds of a specified type as flotation collectors.
Abstract: Certain 2-hydroxy-1-naphthaldehyde acylhydrazones which have the structural formula ##STR1## where R is phenyl, hydroxyphenyl, alkyl C.sub.1 -C.sub.4, benzyl or halophenyl and their uses as a fungicide.
Abstract: Compounds having the structural formula ##STR1## wherein R is alkyl, cycloalkyl, haloalkyl, alkenyl, alkylthio, alkoxy, --NH--alkyl, ##STR2## phenyl or monohalophenyl; and X is hydrogen; alkyl; monohalo; dihalo or nitro and intermediate compounds having the structural formula ##STR3## wherein X' is defined as above excluding hydrogen, both of which compounds are useful as herbicides.
Abstract: Certain 1-(3,5-dichlorobenzoyl)-3-phenylpyrazolines which have the structural formula ##STR1## where R is hydrogen, alkyl, alkoxy or halo and their uses as a mildewicide.
Abstract: 3-(N-Alkylcarbamyl)-5-(carboalkoxy)-1,3,4-oxadiazole-2-thione compound having the structural formula ##STR1## wherein R is alkyl having 1 to 4 carbon atoms and R.sup.1 is alkyl having 1 to 4 carbon atoms, and their use as anti-inflammatory agents.
Type:
Grant
Filed:
March 20, 1979
Date of Patent:
November 18, 1980
Assignee:
Stauffer Chemical Company
Inventors:
Jack R. DeBaun, Ferenc M. Pallos, Arnold D. Gutman
Abstract: Compounds of the formula ##STR1## wherein R is alkyl having 1-4 carbon atoms;R.sup.1 is alkyl having 1-4 carbon atoms, or alkoxy having 1-4 carbon atoms;R.sup.2 is hydrogen or alkyl having 1-4 carbon atoms;X is oxygen or sulfur;X.sup.1 is oxygen or sulfur and n is 0, 1 or 2 which are useful as insecticides and acaricides.