Diisopropylethylamine → HCID 57831211, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 23 grams (0.091 mole) of 5-[4-(bromomethyl)phenyl]-2-methyl-1,2,3,4-tetrazole, 14 grams (0.091 mole) of 4-piperidone monohydrate hydrochloride, and 47 mL (3 equivalents) of N,N-diisopropylethylamine in 200 mL of dimethylsulfoxide (DMSO) was stirred for about 3 days. The reaction was quenched by pouring the reaction mixture onto 400 mL of dilute, cold sodium hydroxide. The resultant solution was extracted one time with 300 mL of ethyl acetate. An emulsion formed, which was broken up by warming it to about 35° C. The organic layer was separated and concentrated under reduced pressure to a residue. The residue was purified with column chromatography on silica gel using 40:1 methylene chloride:methanol as an eluant. The appropriate fractions were combined and concentrated under reduced pressure, yielding 9.12 grams of the subject compound. The NMR spectrum was consistent with the proposed structure.

Provenance & Evidence