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Recherches sur la formation et la transformation des esters LXXVI [1] Sur la réaction de l'isocyanate d' o ‐méthoxycarbonyl‐phényle avec quelques acides amino (ou hydrazino) alcoyl‐orthophosphoriques et ‐sulfuriques
Author(s) -
Cherbuliez Emile,
Espejo O.,
Jindra H.,
Rabinowitz J.
Publication year - 1967
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19670500735
Subject(s) - chemistry , isocyanate , sulfuric acid , phosphoric acid , hydrochloric acid , medicinal chemistry , organic chemistry , polyurethane
Abstract o ‐Methoxycarbonyl‐phenyl isocyanate reacts with mono‐aminoalkyl orthophosphoric and sulfuric acids to yield the corresponding 1,2,3,4‐tetrahydroquinazoline‐2,4‐dione‐3‐ethyl phosphoric (or sulfuric) monoesters which are isolated as sodium salts. 1,2,3,4‐Tetrahydroquinazoline‐2,4‐dione‐3‐ethyl phosphoric acid has been isolated by adding hydrochloric acid to an aquous solution of its sodium salt.