Water → tert-Butyl 3-aminopropanoate

関与物質

反応手順

To a mixture of N(benzyloxycarbonyl)-3(S)-hydroxymethyl-β-alanine tert-butyl ester (3.1 g) and triethylamine (1.35 ml) in dichloromethane (25 ml) was added a solution of methanesulfonyl chloride (1.35 ml) in dichloromethane (5 ml), under ice cooling. After stirring at room temperature for 1 hour. The mixture was poured into water and extracted with dichloromethane. The extract was washed with water, brine and dried over MgSO4, and evaporated in vacuo. The residue was purified by column chromatography on silica gel eluting with CHCl3 to give N-(benzyloxycarbonyl)-3(S)-methanesulfonyloxymethyl)-β-alanine tert-butyl ester (3.1 g) as an colorless oil.

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