2009
DOI: 10.1524/ncrs.2009.0094
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Crystal structure of 1,3-dicyclohexyl-1-(tetrahydrothiophene- 2-carbonyl)urea, C18H26N2O2S

Abstract: Source of material 1,3-Dicyclohexyl-1-(tetrahydrothiophene-2-carbonyl)urea was prepared by reacting of thiophene-2-carboxylic acid (0.01 mol) and dicyclohexylcarbodiimide (0.01 mol) in dichloromethane over 24 hours (353 Kt or eflux), followed by aqueous work-up and extraction. The product was crystallized by dissolving the crude material in hot ethanol solution, and slow cooling to the room temperature. Experimental details DiscussionIn recent years, more and more attention has been focused on synthesis and p… Show more

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