Cyclopropylamine → HCID 13579376, compound

Participants

Reaction Steps

In this example, a mixture containing 5.0 g (0.0157 g mole) of 2-phenyl-3-oxo-4-(3-trifluoromethylphenyl)-5-amino-2,3-dihydrofuran and 8.96 g of cyclopropylamine in 50 ml of ethanol containing 5% water was refluxed for six days. At the end of this time, a sample of the reaction mixture was checked by thin layer chromatography and then an additional 8.96 g of cyclopropylamine was added. The mixture was refluxed for an additional 24 hours and then allowed to stand at room temperature over night. The mixture was then concentrated by evaporation under vacuum, affording a crude product oil. The crude product was chromatographed over silica gel eluting with 80:20 (V/V) petroleum ether and ethyl acetate. The product fractions were combined and evaporated in vacuo affording 2.07 g of the title compound Elemental Analysis Carbon calc.: 66.8%, found 67.4%; hydrogen calc.: 4.5%, found 4.7%; nitrogen calc.: 3.9%, found 4.6%; melting point 160°-164° C.

Provenance & Evidence