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Chemical & Pharmaceutical Bulletin 2015-01-01
Uses of 1-(3-Cyano-4,5,6,7-tetrahydrobenzo[b]-thiophen-2-yl)-3-dodecanoylthiourea as a Building Block in the Synthesis of Fused Pyrimidine and Thiazine Systems.
The reaction of lauroyl isothiocyanate and 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile was used to synthesize the title compound 2. Compound 2 could serve as the main building block in the synthesis of many target heterocyclic systems. Various fused pyrimidines were synthesized in the reactions of compound 2 with sodium ethoxide, hydrazine hydrate, phenyl hydrazine, ethyl carbazate, thiourea, and/or 2-aminothiophenol. The structures of the synthesized compounds were confirmed by microanalytical and spectral data.