化学学报 ›› 1994, Vol. 52 ›› Issue (11): 1082-1087. 上一篇    下一篇

研究论文

杂元素冠醚研究 Ⅶ.多硒杂冠醚及其钯配合物的合成

李卫平;刘秀芳;徐汉生   

  1. 武汉大学化学系
  • 发布日期:1994-11-15

Studies on heteromacrocyclic polyether. Ⅶ. Synthesis of polyselenacrown ethers and their palladium complex

LI WEIPING;LIU XIUFANG;XU HANSHENG   

  • Published:1994-11-15

在碱性条件下,1,2-二硒杂环戊烷被硼氢化钠还原成双硒负离子,然后和二醇的二对甲苯磺酸酯或二氯化物缩合成环,得到六个二硒杂冠醚(2a,3a,4a,5a,6a,7a)和七个四硒杂冠醚(2b,3b,4b,5b,6b,7b,8b).同时,通过5a,5b与二氯化钯反应,合成了两个钯配合物,并讨论了其配位特征

关键词: 红外分光光度法, 元素分析, 质谱法, 电感耦合等离子体光谱, 钯络合物, 硼氢化钠, 冠醚, 硒杂冠醚, 国家教委高等学校博士学科点专项科研基金, 二硒杂环戊烷

Reduction of 1,2-diselenacyclopentane (1) with NaBH4 under alkaline conditions followed by condensation with dichlorides or ditosylates gave six diselenacrown ethers I [Z = CH2CH2OCH2CH2, (CH2CH2O)2CH2CH2, (CH2CH2O)3CH2CH2, o-C6H4(OCH2CH2)2, o-C6H4(OCH2CH2)(OCH2CH2OCH2CH2), m-C6H4(OCH2CH2)2 2a-7a] and seven tetraselenacrown ethers II [same Z, p-C6H4(OCH2CH2)2 2b-8b]. At the same time, the Pd complexes of crown ethers 5a and 5b were prepared by reacting 5a and 5b with Pd dichloride. Their complexing characteristics are discussed

Key words: INFRARED SPECTROPHOTOMETRY, ELEMENTAL ANALYSIS, MASS SPECTROGRAPHY, ICP-ATOMIC EMISSION SPECTROMETRY, PALLADIUM COMPLEX, SODIUM BOROHYDRIDE, CROWN ETHER

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