1,6-Dibromohexane → Methyl 6-bromohexyloxy-2-methylpropionate

Participants

Reaction Steps

To 120 ml of dry N,N-dimethylformamide, 4.0 g of 60% sodium hydride was added. To the mixture was added dropwise 11.81 g of methyl 2-hydroxyisobutyrate with stirring under ice-cooling, and stirred for 10 minutes. Then, 122 g of 1,6-dibromohexane was added and stirred for 15 hours at room temperature. The reaction solution was poured into ice-cold water, extracted with ethyl acetate, washed with brine, dried over anhydrous magnesium sulfate and concentrated. The residue was purified by silica gel column chromatography (Wakogel® C-200, n-hexane:ethyl acetate=20:1) to provide 6.25 g of the objective compound as yellowish oil.

Provenance & Evidence