Purified chlorinated alkenes are produced by a process in which a mixture of i) a first chlorinated alkene that has at least one beta-chlorine substituent and no alpha-chlorine substituents and ii) a second chlorinated alkene that has at least one alpha-chlorine substituent is contacted with chlorine in an amount sufficient to further chlorinate the second chlorinated alkene, but which is insufficient to cause conversion of more than 20% of the first chlorinated alkene. The resultant reaction product may be easily enriched to provide a chlorinated alkene product wherein a) the weight percentage of chlorinated alkenes having at least one beta-chlorine substituent and no alpha-chlorine substituents, based on the total weight of the chlorinated alkenes present in the enriched chlorinated alkene product compared to b) the weight percentage of chlorinated alkenes having at least one beta-chlorine substituent and no alpha-chlorine substituents, based on the total weight of the chlorinated alkenes present in the mixture prior to chlorination is increased by at least 0.25 wt. %.
经过一种方法制备纯化的
氯化烯烃,其中混合物包括i)至少有一个β-
氯代取代基且没有α-
氯代取代基的第一
氯化烯烃和ii)至少有一个α-
氯代取代基的第二
氯化烯烃,该混合物与
氯气接触,
氯气的量足以进一步
氯代第二
氯化烯烃,但不足以使第一
氯化烯烃的转化率超过20%。所得的反应产物可以轻松富集,以提供
氯化烯烃产品,其中a)基于富集的
氯化烯烃产品中存在的
氯化烯烃的总重量,至少有一个β-
氯代取代基且没有α-
氯代取代基的
氯化烯烃的重量百分比,与b)基于
氯化前混合物中存在的
氯化烯烃的总重量,至少有一个β-
氯代取代基且没有α-
氯代取代基的
氯化烯烃的重量百分比相比,增加了至少0.25重量%。