Hydrochloric Acid → 5,5-Bis(bromomethyl)-1,3-dioxane

참여 물질

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반응 단계

A suspension of 26.2 g of 2,2-bis(bromomethyl)-1,3-propanediol, 50 ml of concentrated hydrochloric acid and 50 ml of 38% formaldehyde was stirred in a 50° C. oil bath overnight, then cooled to room temperature and filtered. The filtrate was extracted with three 100 ml portions of ether. The ether extracts were combined, washed with water, dried and evaporated to an oil. A small amount of solid which formed was removed by filtration and washing with ether. The combined filtrate and wash was evaporated under reduced pressure, giving 26.9 g of 5,5-bis(bromomethyl)-1,3-dioxane as a clear oil.

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