摘要:
This invention relates to aliphatic phosphorous containing compounds which are useful as herbicides. Additionally, they demonstrate tolerance towards desired, crops, e.g. wheat and rice.
摘要:
Some new phosphinic acid derivatives of aminothio methylcarbamates have been synthesized and tested as pesticides. The new compounds are active against insects, mites, and nematodes. The N-[(phosphinyl)amino]thio- and N-[(phosphinothioyl)amino]thio- methylcarbamates are readily prepared by the general procedure of reacting a phosphinic acid amide with sulfur dichloride so as to obtain the corresponding N-(chlorothio)phosphinic acid amide which reactant will react with a methylcarbamate so as to produce the corresponding object compounds, the N-[(phosphinothioyl)amino]thio- methylcarbamates of this invention. Various formulations for pesticidal use are described along with appropriate rates of application.
摘要:
Compounds and compositions of the formula: ##STR1## where R and R' are both alkyl, C.sub.1 -C.sub.3 ; orR is acyl, C.sub.2 -C.sub.6 and R' is alkyl, C.sub.1 -C.sub.6 or hydrogen; orR is carbalkoxyalkyl, C.sub.2 -C.sub.6 and R' is hydrogen;X is oxygen or sulfur; and;Y and Z are both alkyl, C.sub.1 -C.sub.6 ; are described herein.The compositions exhibit insecticidal and miticidal activity.
摘要:
This disclosure relates to derivatives of N-trifluoroacetyl-N-phosphonomethylglycinates wherein different moieties are attached to the phosphorus atom, to herbicidal compositions containing same and to the herbicidal use thereof.
摘要:
Preparation of a phosphorylated amidine of the formula ##STR1## wherein X is oxygen or sulfur and R, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are various organic radicals, which comprises reacting a phosphoric acid ester-amide of the formula ##STR2## with a carboxamide of the formula ##STR3## at a temperature between about 0.degree. and 50.degree. C., and then reacting the mixture with a base. Advantageously the reaction is effected at about 0.degree. to 15.degree. C. in the presence of an aliphatic or aromatic optionally chlorinated hydrocarbon or an alcohol as an inert solvent, and in the presence of a catalyst.