Heterocyclic ring-closure reactions. 6. Preparation and further cyclization reactions of 5-imino-1,3-diphenyl-4-thioxo-2-imidazolidinone and 5-imino-1,3-diphenyl-2,4-imidazolidinedithione
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作者:El-Sharief, A. M. Sh.、Ketcham, Roger、Schaumann, Ernst
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KETCHAM R.; SCHAUMANN E., J. ORG. CHEM., 1980, 45, NO 19, 3748-3750
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Heterocyclic ring-closure reactions. 6. Preparation and further cyclization reactions of 5-imino-1,3-diphenyl-4-thioxo-2-imidazolidinone and 5-imino-1,3-diphenyl-2,4-imidazolidinedithione