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有机化学 ›› 2007, Vol. 27 ›› Issue (10): 1258-1263. 上一篇    下一篇

研究论文

三苯基锡N-(5-氯亚水杨基)-α-氨基酸酯的合成及结构表征

田来进*,a，刘西成a，毛武涛a，孙玉希a，刘希杰b，周正宇a,c   

  1. (a曲阜师范大学化学系 曲阜273165)
    (b中国科学院化学研究所 北京100080)
    (c山东大学晶体材料国家重点实验室 济南 250100)
  • 收稿日期:2006-10-19 修回日期:2006-12-25 发布日期:2007-09-28
  • 通讯作者: 田来进

Synthesis and Structural Characterization of Triphenyltin N-(5-Chlorosalicylidene)-α-amino Carboxylates

TIAN Lai-Jin*,a,LIU Xi-Chenga,MAO Wu-Taoa
SUN Yu-Xia,LIU Xi-Jieb,ZHOU Zheng-Yua,c   

  1. (a Department of Chemistry, Qufu Normal University, Qufu 273165)
    (b Institute of Chemistry, Chinese Academy of Science, Beijing 100080)
    (c State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100)
  • Received:2006-10-19 Revised:2006-12-25 Published:2007-09-28
  • Contact: TIAN Lai-Jin

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利用三苯基氯化锡和现场生成的5-氯水杨醛缩-α-氨基酸钾反应合成了6种三苯基锡N-(5-氯亚水杨基)-α-氨基酸酯1～6, 通过元素分析、IR和NMR对其结构进行了表征. 利用X射线单晶衍射测定了三苯基锡N-(5-氯亚水杨基)缬氨酸酯(3)和三苯基锡N-(5-氯亚水杨基)异亮氨酸酯(5)的晶体结构. 结果表明锡原子是五配位的, 通过单齿羧基氧原子和相邻分子的酚氧原子对锡的配位形成了具有反式-O2SnC3三角双锥结构的一维链状聚合物.

关键词: 晶体结构, 三苯基锡(IV), 5-氯水杨醛, Schiff碱, α-氨基酸

Triphenyltin salts of N-(5-chlorosalicylidene)-α-amino acid 1～6 were synthesized by the reaction of triphenyltin chloride with in situ formed Schiff base, potassium salt of N-(5-chlorosalicylidene)- α-amino acid, and characterized by means of elemental analysis, IR and NMR spectra. The crystal structures of triphenyltin N-(5-chlorosalicylidene)valinate (3) and triphenyltin N-(5-chlorosalicylidene)-isoleucinate (5) were reported. The X-ray structures reveal that the tin atom is five-coordinated and adopts a polymeric trans-O2SnC3 trigonal bipyramidal configuration with the axial positions occupied by a carboxylate oxygen from the ligand and the phenolic oxygen of the ligand in an adjacent complex.

Key words: 5-chlorosalicylic aldehyde, α-amino acid, Schiff base, crystal structure, triphenyltin(IV)