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公开(公告)号：EP1156993A1
公开(公告)日：2001-11-28
申请号：EP00907293.5
申请日：2000-02-15
摘要： This invention relates to the production of an hexabromocyclododecane product, which process comprises brominating cyclododecatriene in the presence of a 1,4-dioxane and water based solvent and from 0.5 to 30 wt% bromide ion in the liquid phase of the reaction mass. Optional post-reaction heat treatment in a finishing step increases process yields if needed. The hexabromocyclododecane product is unrecrystallized and contains no more than about 1.5 wt% tetrabromocyclododecene impurities.
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2.发明公开
公开(公告)号：EP1436243A1
公开(公告)日：2004-07-14
申请号：EP02780479.8
申请日：2002-10-18
发明人： KENDALL, John, K.
摘要： Hexabromocyclododecane with enhanced gamma isomer content is produced by brominating cyclododecatriene in a liquid medium comprised of (1) at least 50 wt% of at least one liquid inert organic solvent other than 1,4-dioxane having a solubility in water of at least 1 wt% at 25°C, and (2) water in an amount of up to 40 wt%, in the presence of (3) 0.5 to 30 wt% of bromide ion (Br-), each wt% being based on the total weight of the liquid portion of the liquid medium.
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公开(公告)号：EP1156993B1
公开(公告)日：2004-04-28
申请号：EP00907293.5
申请日：2000-02-15
摘要： This invention relates to the production of an hexabromocyclododecane product, which process comprises brominating cyclododecatriene in the presence of a 1,4-dioxane and water based solvent and from 0.5 to 30 wt% bromide ion in the liquid phase of the reaction mass. Optional post-reaction heat treatment in a finishing step increases process yields if needed. The hexabromocyclododecane product is unrecrystallized and contains no more than about 1.5 wt% tetrabromocyclododecene impurities.
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