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有机化学
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有机化学 ›› 1987, Vol. 7 ›› Issue (4): 268-272. 上一篇    下一篇

研究论文

高分子载体Lewis酸催化剂.聚苯乙烯-三溴化硼复合物I. 制备及其在有机合成中的应用

冉瑞成;裴伟伟;贾欣茹;吴相洪   

  1. 北京大学化学系
  • 发布日期:1987-08-25

A polymer-supported lewis acid catalyst, polystyrene-boron tribromide complex I. Preparation and application in organic synthesis

RAN RUICHENG;PEI WEIWEI;JIA XINRU;WU XIANGHONG   

  • Published:1987-08-25

用交联聚苯乙烯白球与三溴化硼反应制成了一种十分稳定的复合物,其中含溴1.99%,相当于每克复合物小球含7.91x10[-5]mol BBr3。它对缩醛、缩酮、酯化等有机合成反应有较好的催化效能,还可重复使用,是一种制备简单、使用方便的新型高分子载体Lewis酸多相催化剂。

关键词: 应用, 酯化, 硼化合物, 多相催化, 聚苯乙烯, 催化剂, 载体, 有机合成, 溴化物, 电子接受体

The beads of polystyrene-divinylbenzene (5%) copolymer are combined with BBr3 in chloroform to form a stable complex containing 1.99% of bromine which correspond to 7.91 ?10-5 mol BBr3/1 g complex beads. The complex beads can be used to catalyze various organic reactions such as acetalization, ketal formation, esterifications, etherification and the Friedel-Crafts alkylations; some of them are in high yields. The complex as a polymer-supported Lewis acid catalyst is easy to produce and convenient to use; also can be reused.

Key words: HETERGENOUS CATALYSIS, CATALYST, POLYSTYRENE, ESTERIFICATION, BORON COMPOUNDS, ORGANIC SYNTHESIS, ELECTRON ACCEPTOR, CARRIERS, BROMIDE, APPLICATION

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