反应详情

A dispersion of NaH (˜20 mg of a 60% oil dispersion) was added to a solution of 13b (799 mg, 2.37 mmol) in isopropyl alcohol (10 mL). The resulting mixture was immediately stoppered tightly and stirred at RT for 2 h. The reaction mixture was evaporated to dryness and chromatographed over silica gel using 3:1 heptane/EtOAc to give 0.75 g of 13d as a colorless viscous oil. The structure was confirmed by 1H NMR. (Propanoate esters 13e and 13f were similarly prepared using isobutanol and cyclopentanol, respectively (as mentioned above, 13e was also prepared by the previous method using isobutyl acrylate).)

1. customThe reaction mixture was evaporated to dryness
2. customchromatographed over silica gel using 3:1 heptane/EtOAc