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Organo phosphorus compounds of expected biological activity part 2 preparation of thio urea derivatives and n aryl phosphoro thio mono amidates



Organo phosphorus compounds of expected biological activity part 2 preparation of thio urea derivatives and n aryl phosphoro thio mono amidates



Zeitschrift fuer Naturforschung Teil B Anorganische Chemie Organische Chemie 34(2): 297-299



The examples of cyclodiphosphazanes so far studied do not contain any nuclei of biological interest. Ethyl p-aminobenzoate, 2-aminopyridine residues were introduced into the phosphazane molecule. Phosphorus pentachloride was treated with ethyl p-aminobenzoate, p-anisidine, 2-aminopyridine and 5-aminoquinoline to give 1,3-di-p-ethoxycarbonylphenyl-, 1,3-di-p-methoxyphenyl-, 1,3-di-2-pyridyl- and 1,3-di-5-quinolinyl-2,2,2,4,4,4-hexachlorocyclo-diphosphazane, respectively. The compounds were treated with potassium thiocyanate in acetone. The oily products formed were then treated with p-anisidine, ethyl-p-aminobenzoate and 2-aminopyridine whereupon solid products [potential chemotherapeutics] were obtained.

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