Hydrochloric Acid → HCID 68594942, compound

Participants

Reaction Steps

Suspend 3′-(2-trifluoromethylphenyl)-2,3,5,6-tetrahydro-[1,2′]bipyrazinyl-4-carboxylic acid t-butyl ester (408 mg, 1.00 mmol) in HCl in diethyl ether (1 M, 10 mL), stir for 2 hr. then concentrate in vacuo. Add more HCl in diethyl ether (1 M, 20 mL) and stir overnight at room temperature and concentrate. Add HCl in dioxane (4 M, 10 mL) and stir for 2 hr.s, then concentrate to give the title preparation as yellow solid (471 mg, 123%). MS (ES): m/z=309 [M+H]+.

Provenance & Evidence