1315483-13-6Relevant articles and documents
2,3-Epoxyperfl uoro-2-methylpentane in reactions with urea and thiourea
Filyakova,Saloutina,Zapevalov,Slepukhin,Kodess,Saloutin
experimental part, p. 650 - 658 (2011/08/10)
2,3-Epoxyperfl uoro-2-methylpentane reacts with thiourea in protic (methanol, 2-propanol) and aprotic (dioxane) solvents, and also with urea in acetonitrile affording unexpected products: 1-(2,2,3,3,3-pentafl uoropropionyl)- 2-(2,2,2-trifl uoro-1-trifl uoro-methylethyl)isothiourea, and 1-(2,2,3,3,3-pentafl uoropropionyl)-3-(2,2,2-trifl uoro-1- trifl uoro-methylethyl)urea respectively that result from the rearrangement of the intermediately formed ketone in the process of the intramolecular "haloform" cleavage. At the same time in dioxane the 2,3-epoxyperfl uoro- 2-methylpentane reacts with urea with the formation of a heterocyclic compound, 2-amino-4-pentafl uoroethyl- 5,5-bis(trifl uoromethyl)-4,5- dihydrooxazol-4-ol. From 1-(2,2,3,3,3-pentafl uoropropionyl)-2-(2,2,2-trifl uoro-1- trifl uoromethylethyl)isothiourea and Cu(OAc)2 a stable fl uorine-containing chelate complex was obtained. Pleiades Publishing, Ltd., 2011.