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以叔丁醇为原料,首先与盐酸反应生成氯代叔丁烷,然后与乙烯反应得到氯代新己烷,最后经消除生成新己烯。本试验中氯代叔丁烷的合成由回流反应改为常温反应,收率达到90%以上。氯代叔丁烷与乙烯的加成反应中用自制的硅铝复合催化剂替代无水三氯化铝,催化剂用量减少50%,收率达到88%以上。新己烯合成中用氢氧化钠替代氢氧化钾,收率达到85%以上。改进后的工艺条件较温和,原料易得,具有一定的工业化应用价值。
Tert-Butanol as raw material, the first reaction with hydrochloric acid generated tert-butyl chloride, and then reacted with ethylene chloride new hexane, the final elimination of the formation of new hexene. In this experiment, the synthesis of chlorinated tert-butane was changed from reflux to normal temperature, and the yield was over 90%. Chloro-tert-butane and ethylene addition reaction with self-made silicon aluminum composite catalyst instead of anhydrous aluminum chloride, the catalyst dosage reduced by 50%, the yield reached more than 88%. The new hexene synthesis with sodium hydroxide instead of potassium hydroxide, the yield of more than 85%. The improved process conditions are more gentle, raw materials are readily available, and have certain industrial application value.