Synthesis of 5-Amino-4-cyanopyrazole from 1,1-Dicyanoalkenes and Elemental Dinitrogen using a Tungsten Complex

Article abstract of DOI:10.1039/c39830001158

Electrochemical reduction of the dinitrogen-derived dicyanovinyl hydrazido(2-) complex + - in tetrahydrofuran yields 5-amino-4-cyanopyrazole in up to 50percent yield; when carried out under N2, the metal-containing product of reduction is + -, but under CO the dicarbonyl complex W(dppe)2(CO)2 is formed.

Full text of DOI:10.1039/c39830001158

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