Sodium hydride → HCID 14621498, compound

Participants

Reaction Steps

To a solution of (2R,4R,5S)-(E)-4-hydroxyiminomethyl-5-[(Z)-6-methoxycarbonyl-2-hexenyl]-2-methyl-1,3-dioxane (100 mg) in N,N-dimethylformamide (5 ml) was added sodium hydride (14 mg 60% in oil) at 5° C. After being stirred at the same temperature for 30 minutes, to the solution was added diphenylmethyl bromide (86.6 mg) and the mixture was stirred in an ice bath for additional 2 hours. The solution was diluted with ethyl acetate and washed successively with water and brine, dried over magnesium sulfate. The solvent was evaporated in vacuo and the crude residue was purified with preparative TLC with a mixture of n-hexane and ethyl acetate (4:1) as an eluent to give (2R,4R,5S)-(E)-4-diphenylmethoxyiminomethyl-5-[(Z)-6-methoxycarbonyl-2-hexenyl]-2-methyl-1,3-dioxane

Provenance & Evidence