Tbiophosphoryl-3(5)-Amino-4-Cyano(Ethoxycarbon Yl)Pyrazoles: Synthesis,Structure and Phosphorotropic Equilibrium |
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| Authors: | L. V. Razvodovskaya E. B. Putsykina M. V. Erikova N. A. Ki-seleva A. F. Vasilyev A. F. Grapov |
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| Affiliation: | All-Union Scientific Research Institute of Plant Protecting Chemicals , Ugreshskaya 31, Moscow , 109088 , USSR |
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| Abstract: | Abstract Methods of the synthesis of thiophosphorylated 3(5)-amino-4-cyano(ethoxycarbonyl)pyrazoles have been developed as a continuation of the work on phosphorylated aminoheterocy-cles. Two substitution products at the intracyclic N atom of the heterocycles, 3-amino-1-thiophosphorylpyrazoles (I) and 5-a1nino-l-thiophosphorylpyrazoles (II), are formed in the interaction of phosphoro- or phosphonothiochloridates with heterocycles; the yields of the products II are insignificant. |
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