反应详情

The Second Generation Grubbs' catalyst (91.9 mg, 0.108 mmol) was added to a solution of (3S,4R)-3,4-diallyl-5-oxo-1-[(1R)-1-phenylethyl]pyrrolidine-3-carboxylic acid tert-butyl ester (2.00 g, 5.41 mmol) in dichloromethane (54.1 mL) in a nitrogen atmosphere, and the mixture was stirred at room temperature for one hour. The reaction solution was concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=100:0→90:10→80:20→75:25→66:34→50:50) to give 1.61 g of the title compound.

1. concentrationThe reaction solution was concentrated under reduced pressure
2. customThe resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=100:0→90:10→80:20→75:25→66:34→50:50)