Br Br OAc OAc OH OH (111)(IV)(VI The unsaturated glycol was found to undergo dehydration very easily upon warming with halogen acids, and a liquid having the composition C~ HEO and boiling at 116.5-117.5'was produced in yields up to (35%. The same product was also obtained by warming the glycol with zinc chloride, or by subjecting its diacetate (IV) to the action of alcoholic hydrogen chloride. The liquid product, C6Hs0, ...
