ORGANIC PHOSPHORUS COMPOUNDS 881 SULFONIC- AND SULFINIC ACID ANALOGUES OF GLYPHOSATE
- 1 January 1990
- journal article
- research article
- Published by Taylor & Francis in Phosphorus, Sulfur, and Silicon and the Related Elements
- Vol. 47 (1-2) , 43-46
- https://doi.org/10.1080/10426509008046844
Abstract
Under alkaline conditions aminomethylphosphonic acid reacts with hydroxymethylsulfonic-and hydroxymethylsulfinic acid to give N-phosphonylmethyl-amino-methylsulfonic-, 1, Na2O3PCH2NHCH2SO3Na, and N-phosphonylmethyl-aminomethylsulfinic acid trisodium salt, 2, Na2O3PCH2NHCH2SO2Na, respectively. Glyphosate also interacts with the sulfur compounds and yields N-hydroxysulfonylmethyl- and N-hydroxysulfinylmethyl-glyphosate, 3,Na203PCH2N(CH2SO3Na)CH2C02Na and 4, Na2O3PCH2N(CH2SO2Na)CH2CO2Na, respectively. Whereas 1 and 2 are biologically not active, 3 and 4 show herbicidal activity in post-application which is by a factor of 2 weaker than that of glyphosate.Keywords
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