Process for preparing Derivatives of cianofosfonato or aminometilfosfonato selected from Esters between Cyanide and PYROPHOSPHATE and POLYPHOSPHATE

摘要

The process involves contacting a PYROPHOSPHATE Ester selected from POLYPHOSPHATE of formula (i) and formula (ii) wherein R, R1, R2,R3r4 can be identical or different and are defined as a grupoarilalquilo or an aryl Group, a linear or branched alkyl group with between 1 and 20 carbon Atoms.And more preferably between 1 and 10 carbon ATOMS, and N is an integer from 1 to 10,A reaction Mixture with cyanide to produce elderivado decianofosfonato that subsequently can be Hydrogenated to produce a Derivative of aminometilfosfonato.Both the derivative decianofosfonato as aminometilfosfonato are precursors for the production of N - fosfonometilglicina.