Sodium hydride → (s)-2-(Indan-2-yloxymethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Sodium hydride (60%) (0.6 g, 14.4 mmol) is added to a flame dried flask charged with indan-2-ol (0.965 g, 7.2 mmol) and N,N′-dimethylformamide (DMF) (20 mL), cooled to 0° C. under N2 and stirred for 30 minutes. A solution of (S)-2-Methanesulfonyloxymethyl-pyrrolidine-1-carboxylic acid tert-butyl ester (P) (1 g, 3.6 mmol) in DMF (5 mL) is added dropwise to the reaction mixture in such a manner as to maintain 0° C. The reaction is stirred at 60° C. for one hour, cooled to 0° C., quenched with brine, diluted with EtOAc, washed repeatedly with brine (6×), dried and concentrated in vacuo. The residue is purified by chromatography on SiO2 (5% EtOAc/Hexanes) to give 0.20 g of indanyl ether (Q) as a clear colorless oil: LCMS (ES) 340.17 (MNa+).

Herkunft & Nachweise