| 摘要 |
<p>Certain acyclic and heterocyclic oxime phosphate compounds have been found to exhibit insecticidal, miticidal and nematocidal activity; which compounds have the general formula:
<CHEM>
wherein:
X is oxygen or sulfur;
R3 and R4 are individually alkyl; provided that the total number of aliphatic carbon atoms in each of R3 and R4 does not exceed six;
R is either:
<CHEM>
wherein:
R1 is alkyl, cycloalkyl or phenyl, all of which may be unsubstituted or substituted with one or more alkyl, halogen, alkoxy, or alkylthio substituents; provided that the total number of aliphatic carbon atoms in any alkyl, alkoxy or alkylthio substituent may not exceed eight; provided also that the total number of aliphatic carbon atoms in R1 may not exceed sixteen; and provided further that when R1 is cycloalkyl, the total number of aliphatic carbon atoms in said cycloalkyl ring structure may be no less than three and may not exceed six; and
R2 is alkyl, provided that the total number of aliphatic carbon atoms in R2 does not exceed eight; or
<CHEM>
wherein:
A is a three or four-membered divalent aliphatic chain, which may be optionally substituted by one or more alkyl or acyl groups each containing no more than six carbon atoms, and which may include in said chain one or more divalent:
sulfur, sulfinyl, sulfonyl, oxygen, carbonyl, thiono or dicyanomethylidene moieties; or
amino moieties, which may be optionally substituted </p> |
