Abstract: Anew synthetic method of 2,15 hexadecanedione from imidazalium salt and di Grignard reagent is reported. Imidazalium salt was used as tetrahydrofolate coenzyme model at formic acid oxidation level and di Grignard reagent as a nucleophile to which one carbon unit was transferred, the biomimetic synthesis of 2,15 hexadecanedione, a precursor of 3 methylcyclopentadecanone(muscon), was successfully accomplished by using the addition hydrolysis reaction of imidazolium salt with di Grignard reagent.

Key words: Muscone, 2,15 Hexadecanedione, Imidazolium salt