4-Methylbenzyl chloride → HCID 53256309, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of tert-butyl (3R)-3-pyrrolidinylcarbamate (4.0 g) and 1-(chloromethyl)-4-methylbenzene (3.17 g) in DMF(40 mL) was added N-ethyl-N-isopropyl-2-propanamine (5.55 g) at ambient temperature and the resulting mixture was heated at 70° C. for four hours. The mixture was allowed to cool to ambient temperature and extracted with ethyl acetate (100 mL). The organic phase was washed with water (50 mL) and brine (50 mL). The organic layer was dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was purified by a flash chromatography eluting with gradient solvent system (ethyl acetate-hexane from 1:4 v/v to 1:1 v/v) to give tert-butyl [(3R)-1-(4-methylbenzyl)-3-pyrrolidinyl]carbamate (4.69 g) as a pale yellow syrup.

Provenance & Evidence