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The conversion of 2-cyano cyanothioformanilides into 3-aminoindole-2- carbonitriles using triphenylphosphine
(2010)
2-Cyano cyanothioformanilide 3a reacts with triphenylphosphine in the presence of water to give 2-(cyanomethyleneamino)benzonitrile 4a, 2-(cyanomethylamino)benzonitrile 5, 3-aminoindole-2-carbonitrile 2a and (2-cyanoindo ...