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化学学报
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化学学报 ›› 1989, Vol. 47 ›› Issue (5): 469-475. 上一篇    下一篇

研究论文

特烯合成中金属子的模板效应

何明威;夏炽中;李海英;李瑞雪;刘耀华;潘继刚;连亚锋   

  1. 山西大学分子科学研究所
  • 发布日期:1989-05-15

The template effect of metal ion on the synthesis of 2,2,7,7,12,12,17,17-octamethyl-21,22,23,24-tetraoxaquaterene

HE MINGWEI;XIA CHIZHONG;LI HAIYING;LI RUIXUE;LIU YAOHUA;PAN JIGANG;LIAN YAFENG   

  • Published:1989-05-15

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本文报道了以乙醇为溶剂, 呋喃与丙酮在浓盐酸催化下缩合生成2,2,7,7,12,12,17,17-八甲基-21,22,23,24-四氧 特烯, 采用固定反应时间, 比较产率的方法, 研究Sn^2^+, Sb^3^+, Al^3^+, Zn^2^+等金属离子对合成 特烯的模板效应的影响.

关键词: 缩合反应, 锌, 铝, 锑, 锡, 环戊二烯 P, 呋喃 P, 大环化合物, 丙酮, 呋喃

The template effect of metal ions such as Sn2+, Sb3+, Al3+, Zn2+, etc., on the synthesis of the title compound (I) from furan and Me2CO was studied. The effective ionic radii (r), the ratio of the ionic electronegativity (x'), and the ionic charge (z) of the metal ion are useful parameters in the choice of a template agent to give the optimum yield of I. Decreasing the ionic potential z/r of the counteranion affects the template effect of metal ion, increasing the product yield.

Key words: CONDENSATION REACTION, ZINC, ALUMINIUM, STIBIUM, TIN, CYCLOPENTADIENE P, FURAN P, MACROCYCLIC COMPOUNDS, ACETONE, FURAN

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