Ethanol → 1-(1-Methyl-cyclopropanecarbonyl)-piperidine-4-carboxylic acid

Beteiligte Stoffe

Reaktionsschritte

To a stirred solution of 1-(1-Methyl-cyclopropanecarbonyl)-piperidine-4-carboxylic acid ethyl ester (26.09 g, 0.109 mol) in 500 mL of a mixture of THF, EtOH and H2O) (1/1/1) was added LiOH.H2O) (6.86 g, 0.163 mol). After one hour at RT, the solvent were evaporated and the residue taken up in CH2Cl2 and the organic phase was washed with aqueous HCl 1M. The organic phases were dried over Na2SO4 and evaporated under vacuo to gave 19.8 g (86%) of the title compound as a white solid. ES-MS m/e: 212.1 (M+H+).

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