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Preparation and reactions of 2-isothiocyanato-3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophene

P. Pazdera, M. Řezka, and E. Nováček

Department of Organic Chemistry, Faculty of Natural Sciences, J. E. Purkyně University, CS-61137 Brno

 

Abstract: 2-Isottoocyanato-3-cyano-4,5,6,7-tetrahydrobenzo[6]thiophene was prepared by the reaction of 2-amino-3-cyano-4,5,6,7-tetrahydrobenzo[6]thiophene with thiophosgene in the presence of calcium carbonate in dichloromethane at room temperature. The product reacted with secondary amines in the mixture of dichloromethane and petroleum ether at room temperature giving five 3,3-disubstituted l-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thien-2-yl)thioureas.

Full paper in Portable Document Format: 441a63.pdf

 

Chemical Papers 44 (1) 63–69 (1990)

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