HCID 86677003, compound → HCID 78058497, compound

Participants

Reaction Steps

Grubbs' Catalyst, 2nd generation (benzylidene [1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene] dichloro (tricyclohexylphosphine) ruthenium) (560 mg, 0.066 mmol, 2 mol %), was added to a solution of 2,6-dimethyl-nonadeca-2,18-dien-8-one (1 g, 3.3 mmol, prepared as above in EXAMPLE IV) in dichloromethane at room temperature. The reaction mixture was stirred at reflux for 12 hours. The reaction mixtures was subsequently concentrated and then chromatographed on silica with ethyl acetate in hexanes (2%) as the eluent providing 3-methyl-cyclohexadec-6-enone as a colorless oil (0.4 g). This oil was then filtered through a slurry of silica gel/activated charcoal.

Provenance & Evidence