研究了碳酸氢钠活化H<,2>O<,2>(BAP)体系对苯乙烯和不饱和脂肪酸甲酯的环氧化.分别考察了碳酸氢钠、表面活性剂、加料方式、反应时间、H<,2>O<,2>用量和反应温度对BAP体系H<,2>O<,2>分解和烯烃环氧化的影响.在n(苯乙烯):n(H<,2>O<,2>):n(NaHCO<,3>)=1:10:0.25,阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)质量分数1%,水浴冷却控制体系温度35℃以下,搅拌下缓慢滴加30%H<,2>O<,2>,反应6 h,环氧苯乙烷产率可达85%,选择性96%,仅有少量副产物苯甲醛生成.CTAB可携带活性氧物种HCO<,4><'->极大促进苯乙烯环氧化反应转化率.但活性氧物种HCO<,4><'->的亲电能力不足以环氧化不饱和脂肪酸甲酯分子中直链的缺电子C=C烯键.
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