Hydrochloric Acid → HCID 19079054, compound

Participants

Reaction Steps

Dissolved 1,1-dimethylethyl 1-[2-[10,11-dihydro-5-(2-propenyl)-5H-dibenzo[a,d]cyclohepten-5-yl]ethyl]-2-pyrrolidinecarboxylate (2.40 g, 5.56 mmol) in 30 mL of dry THF. Added 25 mL of 4.0M HCl in dioxane, and refluxed for 16 hours on steam bath. Cooled to room temperature, and evaporated. Purified crude product by flash chromatography on silica gel eluting with 5% MeOH--CH2Cl2. Combined appropriate fractions and evaporated to give 0.80 g (40% yield) of 1-[2-[10,11-dihydro-5-(2-propenyl)-5H-dibenzo[a,d]cyclohepten-5-yl]ethyl]-2-pyrrolidinecarboxylic acid. Dissolved free base in dichloromethane, and added 3.4M HCl in ether to pH=2. Evaporated, and added ether to precipitate hydrochloride salt.

Provenance & Evidence