Abstract:
A process for the preparation of N-phosphonomethyt- glycine characterised in that it comprises: (a) reacting 1,3,5-tricyanomethylhexahydro-1,3,5-triazine with an acyl chloride corresponding to the following general formula: wherein X represents chlorine, bromine or iodine; and R represents an aliphatic or aromatic group; to form the N-cyanomethyl-N-chloromethyl amide of the acyl chloride corresponding to the following general formula: wherein X and R are as defined above; (b) reacting the amide formed in (a) with a phosphite corresponding to the following general formuia: wherein R 1 and R 2 represent both aromatic groups or both aliphatic groups; and R 3 represents an aliphatic group or an alkali metal; to form a phosphonate corresponding to the following general formula wherein R' and R 2 are as defined above; and (c) hydrolyzing the phosphonate formed in (b) to yield N-phosphonomethylglycine is disclosed. Thus, an improved production for a valuable herbicide is provided.
Abstract:
Biocidal compounds of the general structural formula wherein n is 0, 1, or 2 and R is alkyl, alkylcarbalkoxy, cyclohexyl, halophenyl, benzyl, N,N-di-lower alkyl carbamoyl, hexamethyleneimino carbonyl, pyrimidyl, lower alkyl substituted imidazole, benzothiazole and 0,0-di-lower a alkyl thiophosphoryl; with the proviso that when n is 0, R is other than alkyl or cyclohexyl.
Abstract:
An iminooxazolidine having the formula wherein X and Y are the same or different and are selected from the group consisting of hydrogen, cyano, acyl, alkyl, alkylthio, haloalkyl, haloalkylthio, alkylsulfenyl, alkoxy, carboalkoxy and haloalkoxy wherein the alkyl groups have from 1 to 5 carbon atoms; n is the integer 1 or 2; provided that when Y is hydrogen, at least one X is other than hydrogen; and R hydrogen or is a lower alkyl group having from 1 to 3 carbon atoms, preferably an ethyl group, and herbicidally effective salts thereof.
Abstract:
3-Methyl-2-p-chlorophenyl butyrylnitrile is useful as an intermediate for preparing the (±)-cyano(3-phenoxyphenyl)methyl ester of (±)-3-methyl-2-(4-chlorophenyl) butanoic acid which is useful as an insecticide and acaricide.