1-Aminocyclohexanecarboxylic acid → Methyl 1-aminocyclohexane-1-carboxylate hydrochloride

関与物質

反応手順

To a suspension of 2 g (14 mmol) of 1-aminocyclohexanecarboxylic acid in 20 mL of methanol is sparged hydrogen chloride for 2 minutes. 1.2 mL (16.8 mmol) of thionyl chloride are added to the solution obtained and the reaction medium is refluxed for 6 hours. After cooling, the mixture is concentrated under reduced pressure and the residue obtained is taken up in 5 mL of methanol. 50 mL of ether are added so as to precipitate 2.3 g of methyl 1-aminocyclohexanecarboxylate hydrochloride in the form of a white powder.

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