Monoamidophosphate

Diethyl monoamidophosphate can be produced by the ammonolysis of diethyl monochlorophosphate or preferably by the reaction of diethyl phosphite with carbon tetrachloride and ammonia, as described by Atherton, Openshaw, and Todd1 and further elaborated by Steinberg.2 [Pg.77]

The filtrate is heated in a flask, under atmospheric pressure, to distill out the benzene and chloroform. Vacuum is then applied, and the flask is heated to 80 to 90° to drive off the last traces of the solvents. [Pg.77]

The residue is nearly colorless and solidifies to a crystalline mass on cooling. The yield is approximately 90%. Anal Calcd. for (C2H60)2P0NH2 P, 20.2 N, 9.1. Found P, 20.7, 21.7 N, 8.8, 8.7. [Pg.78]

Diethyl monoamidophosphate forms colorless, needlelike crystals, which melt at 46 to 47°. It is very soluble in water, alcohol, acetone, ether, carbon tetrachloride, and a number of other organic solvents but insoluble in hexane. It is very hygroscopic and liquefies when exposed to moist air. [Pg.78]

Disodium monoamidophosphate is formed when mono-amidophosphoric acid diphenyl ester reacts with stoichiometric amounts of sodium hydroxide.1 [Pg.100]

1 The method seldom gives a product of 100% purity because of the ease with which the amide group is converted to ammonia by hydrolysis. The checker reports the normal limits of amide nitrogen as a ratio relative to phosphorus to be 0.98 to 1.00. [Pg.100]

When anhydrous disodium monoamidophosphate is heated to 210° under vacuum, anhydrous tetrasodium imi-dodiphosphate is formed.1... [Pg.101]

To get a good yield, the disodium monoamidophosphate has to be absolutely free from water. The freshly prepared, crystal, water-containing salt is kept at room temperature in a desiccator over sodium hydroxide or calcium chloride... [Pg.101]

Tetrasodium imidodiphosphate occurs as colorless crystals, easily soluble in water. It is isomorphous with Na4P2-O7TOH2O. The water solution has a pH of 11 (0.1 M). At the boiling point a cleavage into monoamidophosphate and monohydrogen phosphate occurs ... [Pg.103]

When hydrogen chloride is passed into a suspension of phosphoryl triamide in ether at —15° imidodiphos-phoric acid tetramide, (NH2)2P(0)—NH—P(0)(NH2)2, is formed at +30° diimidotriphosphoric pentamide is formed. Both these compounds are formed simultaneously when phosphoryl triamide in toluene is heated to 120°. After some weeks in humid air phosphoryl triamide forms ammonium hydrogen monoamidophosphate. For storage the compound must be sealed off in a glass tube. With... [Pg.110]

P03NH2(C2H6)2 Diethyl mono-amidophosphate, 4 77 PO3NH2NH4H Ammonium hydrogen monoamidophosphate,... [Pg.328]

P03NH2Na2 Disodium monoamidophosphate, 6 100, 101 (POaNa)i Sodium polymetaphosphate, 3 104... [Pg.328]

Disodlum monoamidophosphate is formed on saponification of the diphenyl ester of monoamidophosphoric acid (see p. 579) with the stoichiometric quantity of NaOH (Klement and Biberacher) ... [Pg.581]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...