ChemInform Abstract: Reaction of Amidine Phenylogous with p‐Benzoquinones.

Abstract

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Investigation of interaction of benzoquinones and naphthoquinones with substituted hydrazides

“…Amides and thioamides were added to 3 to produce two related heterocyclic diones series in excellent yields [10–14]. The reaction of 2 and 3 with N 1 , N 2 ‐diarylamidines to give benzimidazole and indole derivatives has been reported [15, 16]. Heterocyclization of substituted thiosemicarbazides and dithiobiureas during the reaction with benzoquinones and naphthoquinones, different successful approach for the synthesis of oxathiadiazole [17], thiadiazine [17, 18], imidazoxadiazole [19], imidazothiadiazole [20], and indazole [21] derivatives.…”