FIELD: organic chemistry. SUBSTANCE: product: 2-dioctylphosphinylbutylallophanate of the general formula (C18H17)2P(O)N[C(O)OC4H9][C(O)NH2], gross-formula is C22H45N2O4P. m. p. is 190-191 C. Reagent 1: Na. Reagent 2: NH2-C(O)-NH-C(O)OC4H9. Reagent 3: (C8H17)2P(O)Cl. Reaction condition: at 20-25 C. EFFECT: improved method of synthesis. 1 tbl
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