Shell Oil Comapny

Richard D Skiles

Kurt H Pilgram

A process for the preparation of 2,3-dihydro-1,3,2-benzodiazaphosphole-2-oxides which comprises reacting 2-nitrodiphenylamine with a trialkyl phosphite at elevated temperature.

Preparation of 2,3-dihydro-1,3,2-benzodiazaphosphole-2-oxides

Miticidal 1-(2-alkyl-4-(or 5)-bromo (or (chloro)-2,3-dihydrobenzofuran-7-yl)-4-alkoxy-4-alkylsemicarbazides.

Miticidal

Certain miticidal 2-(2-alkyl-2,3-dihydro-benzofuran-7-yl)-hydrazinecarboxylic acid esters.

Miticidal 2-(2-methyl-2,3-dihydro-benzofuran-7-yl)hydrazinecarboxylic

Miticidal 2-(2-alkyl-4-(or 5)-bromo (or chloro)-2,3-dihydrobenzofuran-7-yl)-N-alkoxy-N-alkyldiazenecarboxamides.

Certain miticidal (2-alkyl-3,4-dihydro-2H-1-benzopyran-8-yl)diazenecarboxylic acid esters.

Miticidal (2-alkyl-3,4-dihydro-2H-1-benzopyran-8-yl)-diazenecarboxylic

Certain aphicidal 3-(2-alkyl-2,3-dihydrobenzofuran-7-yl)-5-(R,R.sup.1 -amino)-1,3,4-oxadiazol-2(3H)-ones.

Aphicidal 3-(2-alkyl-2,3-dihydrobenzofuran-7-yl)-5-(R,R.sup.1

Certain miticidal (2-substituted-2,3-dihydro-benzofuran-7-yl)diazenecarboxylic acid esters.

(2-Substituted-2,3-dihydrobenzo-furan-7-yl)diazenecarboxylic acid esters

Esters of 2-(2-chlorocarbonyl)-2-(2,3-dihydro-2-alkylbenzofuran-7-yl)hydrazinecarbox ylic acid, useful as pesticides and/or as percursors to pesticides.

Esters of

Certain 4-(benzotriazol-1-yl)phenoxy)alkanoic acids, esters and salts, useful as herbicides.

Herbicidal 4-(benzotriazol-1-yl)phenoxy)alkanoic acids, esters and salts

Pesticidal 3-(2,3-dihydro-2-alkylbenzofuran-7-yl)-5-(R-oxy)-1,3,4-oxadiazol-2(3H)-one s.

Pesticidal

Certain N-(para-(6-chloro-3-pyridazinyloxy)phenyl)trifluoromethanesulfonamides and their use as herbicides.

Certain herbicidal

Spiro-.DELTA..sup.3 -1,2,3-thiadiazolines of the formula: ##STR1## wherein R.sub.F represents a perfluoroalkyl group having from 1 to 6 carbon atoms, each X and each Y is independently selected from the class consisting of hydrogen, halogens, lower alkyl, and halogen-substituted lower alkyl, Z is fluorine, chlorine, or bromine, p is an integer from 2 to 6, and n is either 1 or 2; and a method for the preparation of such compounds comprising the reaction of certain acylated perfluorinated aliphatic aldehyde hydrazones with a thionyl halide.

Spiro-.DELTA..sup.3 -1,2,3-thiadiazolines and a method for the

Compounds of the formula ##STR1## wherein Y is C.sub.1-3 alkyl; R.sup.1 is an optionally substituted hydrocarbyl group and R.sup.2 is alkyl or halogen, are useful as herbicides.

Cycloalkanecarboxanilide derivative herbicides

Certain cycloalkanecarboxanilide derivatives are useful as herbicides.

Compounds of the formula ##STR1## wherein X is halogen or (halo)alkyl; Y and Y.sub.1 are hydrogen, halogen or (halo)alkyl; Z is hydrogen, halogen, (halo)alkyl, (halo)alkoxy, (halo)alkylthio, (halo)alkylsulfinyl, (halo)alkylsulfonyl or amino; with the proviso that at least one of Y, Y.sub.1, and Z is other than hydrogen; and R.sup.1 is alkyl or an optionally substituted cyclopropyl group, are useful as herbicides.

Growing community of inventors

Modesto, CA, United States of America

Richard D Skiles