反应详情

The above ester (7.5 g; 18.3 mmol), dissolved in freshly distilled THF (75 ml), is added dropwise to a solution of 0.8 g of lithium aluminium hydride (21 mmol) in freshly distilled THF (45 ml) in the cold and with stirring. Stirring is continued at room temperature for 12 hours, and the lithium aluminium hydride is then decomposed by adding saturated sodium sulphate solution dropwise. The resulting complex is filtered off, and the THF is dried over magnesium sulphate, giving an oil which is reduced in ethyl acetate to give 1-(triphenylmethyl)-4-(3-hydroxypropyl)-1H-imidazole in the form of a white powder (5.8 g; 87%); m.p.: 130° C.

1. stirringStirring
2. filtrationThe resulting complex is filtered off
3. dry with materialthe THF is dried over magnesium sulphate
4. customgiving an oil which