2,4,6-Tribromophenol → 2,4,6-Tribromophenoxyethanol

関与物質

反応手順

Monomers of type (e) are prepared by the reaction of 2,4,6--tribromophenol with an alphaolefin oxide such as ethylene oxide and propylene oxide, in the presence of 1 to 3 percent tetramethylammonium chloride at 80° to 100°C. for 3 to 6 hours to form 2,4,6-tribromophenoxyethanol. The reaction mixture is washed thoroughly with water after dissolving in solvent, dried with a drying agent, and stripped of solvent under reduced pressure at 40° to 60°C. The product is then analyzed for hydroxyl number. The yield of this intermediate is generally 40 to 60%. The intermediate is then reacted with maleic anhydride at 80° to 100°C. for 3 to 5 hours to form mono-2,4,6-tribromophenoxyethyl maleate.

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