Triethylamine → Methyl 1-benzyloxycarbonyl-1,2,5,6-tetrahydropyridine-3-carboxylate

Beteiligte Stoffe

Reaktionsschritte

A solution of 1,2,5,6-tetrahydro-3-pyridinecarboxylic acid, hydrochloride salt (1.8 g, 10 mmol) in methylene chloride (60 ml) was cooled to 0° C. Benzyl chloroformate (2.74 ml, 19.2 mmol) was added, followed by addition of triethylamine (7.2 ml, 51.2 mmol), and stirring at room temperature for 12 hours. The reaction mixture was washed with brine and dried over magnesium sulfate. Evaporation in vacuo afforded a yellow oil. This was purified by chromatography on silica gel (eluant: 20%, then 30% ethyl acetate/hexane) to give the product as a slightly yellow oil (2.14 g, 7.7 mmol, 77% yield).

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