Novel phosphorus compounds for protecting cultivated plants from

Details Novel phosphorus compounds for protecting cultivated plants from Novel phosphorus compounds for protecting cultivated plants from

1984-11-08

1988-03-29

Hollrah, Glennon H.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 77, 71 87, 71 88, 71 90, 71 92, 71 93, 71 94, 71 98, 71100, 71103, 71105, 71107, 71108, 71115, 71118, 71120, 71121, 71124, 47 576, 558154, A01N 5704, C07C125065, C07F 902, C07F 928

Patent

active

047341190

ABSTRACT:
Novel acylated hydrazinomethylphosphonic acids, hydrazinomethylphosphonates, hydrazinomethylphosphinic acids, hydrazinomethylphosphinates or hydrazinomethylphosphine oxides of formula I below are able as "antidotes" or "safeners" to protect cultivated plants from the phytotoxic action of herbicides. Suitable crops are preferably maize, sorghum, cereals, rice and soybeans and the herbicides employed are in particular chloroacetanilides.
The acylated hydrazinomethylphosphonates, hydrazinomethylphosphinates or hydrazinomethylphosphine oxides have the formula I ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydroxy, alkyl, aryl, phenylalkyl, alkoxy, alkenyloxy, alkynyloxy, aryl or phenylalkoxy, the radicals of which may be substituted,

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