反应详情

Sodium hydride (343 mg, 14 mmol) was added to a stirring solution of 1-methylthymine (2.00 g, 14 mmol) in dimethylsulfoxide (40 ml). After 15 minutes, 9-bromo-1-nonene (2.93 g, 14 mmol, available from Alfebro) was added and the resulting mixture stirred for 20 hours. The reaction was poured into water (40 ml) and extracted with three 50 ml aliquots of dichloromethane. The organic layers were combined, washed with water (40 ml) and saturated aqueous salt solution (20 ml). After drying the washed organic layers over sodium sulfate, the solvent was evaporated, leaving a colorless oil, 3-(8-nonenyl)-1-methylthymine, which solidified upon standing (2.76 g, 73% yield).

1. extractionextracted with three 50 ml aliquots of dichloromethane
2. washwashed with water (40 ml) and saturated aqueous salt solution (20 ml)
3. dry with materialAfter drying the washed organic layers over sodium sulfate
4. customthe solvent was evaporated