反应详情

A mixture of 4-chloromethyl-2-ethyl-1,3-oxazole (4.87 g), triphenylphosphine (7.89 g) and acetonitrile (100 mL) was heated under reflux for 15 hrs. The reaction mixture was concentrated, and the obtained crystals were washed with diethyl ether to give [(2-ethyl-1,3-oxazol-4-yl)methyl]triphenylphosphonium chloride as colorless crystals (10.02 g, yield 79%). Recrystallization thereof from acetonitrile-diethyl ether gave colorless prism crystals. melting point: 222-223° C.

1. temperaturewas heated
2. temperatureunder reflux for 15 hrs
3. concentrationThe reaction mixture was concentrated
4. washthe obtained crystals were washed with diethyl ether