Hydrochloric Acid → Ethyl 4,6,6-tribromo-3,3-dimethylhex-5-enoate

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Reaction Steps

Two milliliters of an ethanolc solution containing 92 mg (4 mmoles) of sodium was added dropwise to a cold solution of 1.95 g (4 mmoles) of ethyl 4,6,6,6-tetrabromo-3,3-dimethylhexanoate in 10 ml of absolute ethanol. The cooled mixture was stirred for 2 hours, then poured into chilled 1N hydrochloric acid. The acidic mixture was extracted with diethyl ether, and the extract was washed successively with saturated aqueous bicarbonate and sodium chloride. The washed extract was dried over magnesium sulfate and distilled to give 846 mg (52% yield) of ethyl 4,6,6-tribromo-3,3-dimethyl-5-hexenoate, b.p. 130°-133°/0.3 mm.

Provenance & Evidence