无溶剂、无催化剂条件下5-[(3-吲哚基)-芳甲基]-2,2-二甲基-l,3-二氧六环-4,6-二酮的合成

在无溶剂和催化剂条件下，由芳香醛、吲哚、丙二酸亚异丙酯的三组分缩合反 应，制备了5．[(3-吲哚基)-芳甲基]-2，2-二甲基-1，3-二氧六环-4，6-二酮，产 率为70％～85％，产物结构经～1H NMR，IR确证．     

噻吩多烯基丙二酸二甲酯类化合物的气相研究

气相Hel紫外光电子能谱（UPS）能从孤立分子的分子轨道特性给出研究分子的电子结构、构型、构象以及成键特性等的大量信息．为此，我们开展了分子体系中带有数基为阻断基团的三岔共把系列化合物的＊PS研究【’－‘］其各自分子轨道的特性提供了它们遵守同东线性规律的实验和理论依据．本文报导唾吩多烯基雨二酸二甲酯类化合物（1）、（2）、（3）的UPS研究·结果表明，它们遵从同系线性规律；同时从分子轨道的原子特性论证了文献间推证的一C00CH3基团的结构效应．这些尚未见文献报导．1实验和计算文献则报导了这类化合物的合成·研究化…     

Convenient Solid-phase Synthesis of Benzothiazole Derivatives

Resin-bound cyclic malonic ester 1 reacted with aryl isothiocynate, then was treated with bromine, followed by cleavage from the resin under perchloric acid to give benzothiazoles 4.     

Ionic liquids as efficient phase-transfer catalysts for the solid base-promoted monoalkylation of diethyl malonate

Ionic liquids （ILs） based on 1,3-dialkylimidazolium and tetraalkylammonium cations were employed as a series of efficient, environmentally benign phase-transfer catalysts （PTCs） for the base-promoted monoalkylation of diethyl malonate. The influence of various heterogeneous bases on yields was studied. Good yields and high selectivity were obtained. Solvent-free, mild reaction condition, short reaction time, and easy purification were the merits of this method. The catalytic system （IL-hase） could also be recycled after the extraction of products with ether.     

基于杯[6]芳烃的选择性识别氟离子和丙二酸的荧光传感器

以杯[6]芳烃为平台, 通过在上沿用氨基吡啶桥连的方法固定构象, 并以氨基吡啶基团为识别位点和荧光基团, 合成了一类能识别F－和丙二酸的新型荧光化学传感器. 当氟离子与胺成氢键时, 由于光诱导电子转移效应(PET), 荧光强度淬灭; 但往这个配合物滴加丙二酸时, 荧光强度得到迅速恢复, 由此, 传感器体现了一个on/off的分子开关性质.     

Synthesis and Structural Invstigation of {CpEu[CH（COOC2H5）2][μ—CH（CO

The title complex {CpEu[CH(COOC2H5)2][μ-CH(COOC2H5)2]}2 crystallizes in the triclinic system, space group P with unit cell constants a=9.108(1), b=11.580(2), c=11.705(2) , α=70.42(1)°, β=73.83(1)°, γ=78.60(1)°, Dc=1.602 g/cm3, Mr=1070.76, V=1109.7(3)3, Z=1, μ(MoKα)=28.66 cm-1 and F(000)=536, T=296K, R=0.028, Rw=0.037. The geometry around the Eu ion can be described as a pentagonal bipyramid.     

DL-β-(4-噻唑基)-α-乙酰氨基丙酸含成方法的改进

报道了由（４－噻唑基）－甲基乙酰氨基雨二酸二乙酯通过碱性水解并脱羧来合成外消旋β－（４－噻唑基）－α－乙酰氨基丙酸的新路线，产率可达８０％，同时对前几步中间产物的合成进行了有效的改进。