Abstract:
The disclosed compounds include derivatives of 1,2-diphosphacyclopentene-(5)-one-(4) having the formula:
WHEREIN R1 represents an aliphatic, cycloaliphatic, heterocyclic or aromatic radical linked to the nucleus via an oxygen atoms, R2 and R3 each represent aliphatic, cycloaliphatic, heterocyclic or aromatic radicals, which may be linked to the nucleus via a bridge atom A selected from the group of oxygen, sulfur, nitrogen, and phosphorus, n is an integer having a value of 0 or 1 if the bridge atom is oxygen, and if the bridge atom is sulfur, nitrogen or phosphorus n has a value of 0, 1 or 2, and R4, R5 and R6 each stand for a carboxylic acid ester group.
Abstract:
WHEREIN R1 represents an aliphatic, cycloaliphatic, heterocyclic or aromatic radical linked to the nucleus via an oxygen atom, R2 and R3 each represent aliphatic, cycloaliphatic, heterocyclic or aromatic radicals, which may be linked to the nucleus via a bridge atom A selected from the group of oxygen, sulfur, nitrogen, and phosphorus, n is an integer having a value of 0 or 1 if the bridge atom is oxygen and if the bridge atom is sulfur, nitrogen or phosphorus n has a value of 0, 1 or 2, and R4, R5 and R6 each stand for a carboxylic acid ester group.
Novel organic phosphorus compounds containing at least one phosphorus atom, which may be present in the trivalent state, at least two carboxylic acid ester groups and a phosphorus to carbon double linkage prepared by reacting a malonic acid diester with a compound of trivalent phosphorus having directly linked to the phosphorus atom at least two halogen atoms capable of reacting with activated hydrogen atoms. (The reaction malonic acid diethyl ester with phenyl phosphine dichloride and the resulting reaction product are not within the scope of the instant invention). The novel organic phosphorus compounds of the invention are useful as pest controlling agents, as catalyst components and for forming complexes with transition metals and their compounds. The disclosed compounds include derivatives of 1,2diphosphacyclopentene-(5)-one-(4) having the formula: