Benzyl Bromide → HCID 57941320, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of (4S,7R)-1-phenyl-7,8,8-trimethyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one (Intermediate 8; 1.00 g, 3.7 mmol) and benzyl bromide (0.9 mL, 7.6 mmol) in N,N-dimethylformamide (30 mL) was heated at 100° C. overnight. The reaction mixture was diluted with water and extracted twice with ethyl acetate. The organic extracts were combined, washed with water and brine, dried (magnesium sulfate), filtered, evaporated, and purified using an Analogix Intelliflash 280 system (Analogix, Inc., Burlington, Wis.) with an Isco 80 g column, eluting with 5-75% ethyl acetate/hexanes to give (4S,7R)-2-benzyl-7,8,8-trimethyl-1-phenyl-1,2,4,5,6,7-hexahydro-4,7-methano-indazol-3-one (1.01 g, 76%) as a brown oil. ES(+)-MS (M+H) 359.

Provenance & Evidence