国家自然科学基金(s20402009)

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Synthesis and Liquid Crystalline Properties of 3-Substituted Pentane-2,4-dione, Pyrazole and Isoxazole Derivatives
《Chinese Journal of Chemistry》2007年第1期129-131,共3页韩杰 郭辉 王晓光 庞美丽 孟继本 
Project supported by the National Natural Science Foundation of China （Nos. 20402009 and 20372039）.
The γ-substituted β-diketonate 2,4-dioxo-3-pentyl 4-[4-（n-octyloxy）cinnamoyl]oxybenzoate 1 and its pyrazole and isoxazole derivatives （2 and 3 respectively） have been synthesized and characterized by the spectro...
关键词：liquid crystal β-diketonate PYRAZOLE ISOXAZOLE 
Synthesis and Mesomorphic Properties of 2-（4-Alkoxybenzoyloxy or 4-Alkoxycinnamoyloxy）-5-oxo-2,5-dihydrofurans
《Chinese Journal of Chemistry》2005年第12期1683-1687,共5页郭辉 韩杰 王海英 孟继本 
Project supported by the National Natural Science Foundation of China （Nos. 20402009 and 20490210）.
Two series of p-alkoxybenzoates Ia-If and p-alkoxycinnamates IIa-IIf, each species beating one terminal furanone, have been synthesized and characterized by IR, ^13C NMR, ^1H NMR, MS spectra and elemental analysis. Th...
关键词：FURANONE BENZOATE CINNAMATE liquid crystal SYNTHESIS 
Synthesis and Photochromic Properties of the Derivatives of Spiropyrans Containing a Mesogenic Group
《Chinese Chemical Letters》2005年第10期1290-1292,共3页Hui GUO Yong Bin GAO Jie HAN Xu LI Ji Ben MENG 
The auth ors thank the National Natural Science Foundation of China for the financial support．(Grant Nos．20402009 and 20372039)．
Two series of novel spiropyran derivatives containing a mesogenic group have been prepared. Their photochromic behaviors were first investigated with the aid of absorption spectral measurements.
关键词：PHOTOCHROMIC SPIROPYRANS liquid crystal. 
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