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Chinese Chemical Letters 2012年第1期23卷 69-72页

作者： Shu hong Li Liang Chun Li cai hong xu Department of Chemistry School of ScienceBeijing Technology and Business UniversityBeijing 100048China Institute of Chemistry Chinese Academy of SciencesBeijing 100190China

The reduction of diphenylacetylene with lithium naphthalenide produced two kinds of intermediates,1 or 2,depending on the ratio of diphenylacetylene to lithium naphthalenide.A series of polyaryl substituted ethylene/diene derivatives were synthesized by reaction of electrophⅡes with the corresponding intermediates produced in *** new compounds were fully characterized,and their single crystal structures were determined.

关键词： Lithium naphthalenide Reduction Diphenylacetylene Diene derivatives

One pot synthesis of bis-silicon-bridged stilbene derivatives

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Chinese Chemical Letters 2007年第12期18卷 1436-1438页

作者： Chen Hui Li Hua Yu Qiu cai hong xu Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education Hangzhou Teachers College Hangzhou 310012 China Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

Bis-silicon-bridged stilbene derivatives were synthesized in a modified procedure that combined the preparation of bis[2- （silyl）phenyl]acetylene and its intramolecular reductive cyclization in one pot. The results indicated that the one pot approach produced target products in a comparable yield to that of the two-step method reported previously.

关键词： Bis-silicon-bridged stilbene Reductive cyclization One pot synthesis

Synthesis of new 1,3-bis(phenylethynyl)disilazanes

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Chinese Chemical Letters 2007年第11期18卷 1351-1352页

作者： Xiao Wen Hu Zhi Min Zheng cai hong xu Beijing National Laboratory for Molecular Science （BNLMS） Laboratory of Advanced Polymer Materials Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Graduate School of the Chinese Academy of Sciences Beijing 100049 China

Three new 1,3-bis（phenylethynyl）disilazanes were synthesized from the reaction of 1,3-dichlorodisilazanes with （phenylethynyl）lithium, and characterized by infrared （IR） spectra, nuclear magnetic resonance （NMR... 详细信息

关键词： Silazane 1,3-Dichlorodisilazane 1,3-Bis(phenylethynyl)disilazane

POLYMERIZATION OF OCTAMETHYLCYCLOTETRASILOXANE WITH HEXAMETHYLDISILAZYL-LITHIUM AS INITIATOR

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Chinese Journal of Polymer Science 2001年第1期19卷 7-11页

作者： Zhijie Zhang Ning Zhou cai-hong xu Ze-min Xie Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

This work focused on the anionic polymerization of octamethylcyclotetrasiloxane (D-4, D = Me2SiO2/2) initiated by a new kind of initiator hexamethydisilazyl-lithium (MMNLi). Si-29-NMR spectroscopy and gas chromatography (GC) were used to characterize the polymerization products. The process was accelerated by adding a small amount of high activity monomer D-3 and by raising the polymerization temperature. At the end of polymerization more than 95% of the monomer was converted to polymer and only a very small amount of D-4 and D-5 remained in the polymers.

关键词： high purity polydimethylsiloxane octamethylcyclotetrasiloxane hexamethyldisilazyl-lithium anionic polymerization

Synthesis and photophysical properties of poly(aryleneethynylene)s containing dibenzosilole unit

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Chinese Chemical Letters 2012年第11期23卷 1303-1306页

作者： Qiang Yang Liang Chun Li Shu hong Li Dong Mei Yue cai hong xu Beijing University of Chemical Technology Beijing 100029China Institute of Chemistry Chinese Academy of SciencesBeijing 100190China Department of Chemistry School of ScienceBeijing Technology and Business UniversityBeijing 100048China

A series of poly（aryleneethynylene）s containing dibenzosilole unit has been synthesized by palladium-catalyzed Sonogashira cross-coupling reactions with 2,7-diethynyl-9,9-dihexyl-3,6-dimethoxy-9H-dibenzosilole （4） as the key monomer. Their photophysical properties in solution were investigated. All of the polymers showed intense fluorescence with high quantum efficiencies.

关键词： Poly(aryleneethynylene)s Dibenzosilole Sonogashira cross-coupling Photophysics

Synthesis of new borazines containing crosslinkable groups

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Chinese Chemical Letters 2008年第12期19卷 1398-1400页

作者： Shao Hua Dong Zhi Min Zheng Wei Jian Han Tong Zhao cai hong xu Beijing National Laboratory for Molecular Science （BNLMS） Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China

Three new functional group containing borazine derivatives, 2,4,6-tri（allylamino）borazine, 2,4,6-tri（3-ethynylanilino）borazine, and 2,4,6-tri（4-propargyl oxyanilino）borazine were synthesized by aminolysis reaction of 2,4,6-trichloroborazine ClaB3N3H3（TCB）. The new compounds were characterized by infrared （IR） spectra, nuclear magnetic resonance （NMR）, and mass spectrometry （MS）.

关键词： Aminolysis Crosslinkable groups

Identification of Quantitative Trait Loci for Grain Appearance and Milling Quality Using a Doubled-Haploid Rice Population

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Journal of Integrative Plant Biology 2005年第11期47卷 1391-1403页

作者： Gong-Hao JIANG xue-Yu hong cai-Guo xu Xiang-Hua LI Yu-Qing HE State Key Laboratory of Crop Genetic Improvement and National Center of Crop Molecular Breeding Huazhong Agricultural University Wuhan 430070 China

Improving grain quality, which is composed primarily of the appearance of the grain and its cooking and milling attributes, is a major objective of many rice-producing areas in China. In the present study, we conducted a marker-based genetic analysis of the appearance and milling quality of rice （Oryza sativa L.） grains using a doubled-haploid population derived from a cross between the indica inbred Zhenshan 97 strain and the japonica inbred Wuyujing 2 strain. Quantitative trait locus （QTL） analysis using a mixed linear model approach revealed that the traits investigated were affected by one to seven QTLs that individually explained 4.0%-30.7% of the phenotypic variation. Cumulatively, the QTL for each trait explained from 12.9% to 61.4% of the phenotypic variation. Some QTLs tended to have a pleiotropic or location-linked association as a cause of the observed phenotypic correlations between different traits. Improvement of the characteristics of grain appearance and grain weight, as well as an improvement in the milling quality of rice grains, would be expected by a recombination of different QTLs using marker-assisted selection.

关键词： doubled-haploid population grain appearance quality grain milling quality Oryza sativa quantitative trait locus.

Synthesis of Some New Derivatives of 1,3-Dichloro-1,1,3,3-tetraphenyldisilazane

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Chinese Chemical Letters 2001年第1期12卷 35-38页

作者： cai hong xu Zhi Jie ZHANG Yong Min LI Zhi Min ZHENG Ze Min XIE Center for Molecular Science Institute of ChemistryThe Chinese Academy of SciencesBeijing 100080

The reactive properties of 1,3-dichloro-1,1,3,3-tetraphenyldisilazane (DCTPS) with water, methanol, phenylamine and lithium salt of hexamethylcyclotrisilazane (D-3(NLi)) were investigated, and four new derivatives wer... 详细信息

关键词： 1,3-dichloro-1,1,3,3-tetraphenyldisilazane derivatives reactive properties

Ultrasonic interventional analgesia in pancreatic carcinoma with chemical destruction of celiac ganglion

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World Journal of Gastroenterology 2006年第20期12卷 3288-3291页

作者： Tao Wang Fu-Zhou Tian Zhong-hong cai xu Li Tao Cheng Li Shi Qi Cheng Department of The General Hospital of Chengdu Military Command Area Chengdu 610085 Sichuan Province China

AIM： To detect the therapeutic effects of chemical destruction of celiac ganglion in patients with pancreatic carcinoma with intractable pain. METHODS： Ninety-seven cases with advanced pancreatic carcinoma received chemical destruction of celiac ganglion-5 mL pure alcohol injection around celiac artery under ultrasonic guidance. The changes of visual analogue scale （VAS）, serum substance P （Sub P）, β-endopeptide （β-EP） and T-lymphocyte subtypes level were compared between pre- and post-therapy. RESULTS： Successful rate of puncture was 98.7%, with one failure. No serious complications such as traumatic pancreatitis, pancreatic fistula, abdominal cavity hemorrhage or peritoneal infection occurred. VAS, serum Sub P and β-EP level significantly changed after treatment （8.0 ± 2.3 vs 4.6 ± 2.1, 254.1 ± 96.7 vs 182.4 ± 77.6, 3.2 ± 0.8 vs 8.8 ± 2.1, P 〈 0.01, P 〈 0.05, P 〈 0.01） with complete relief rate 54.2%, partial relief rate 21.9%, ineffective rate 12.5% and recurrent rate 10.7%. The T-lymphocyte subtypes level remarkably increased when compared with that of pre-therapy （46.7 ± 3.7 vs 62.5 ± 5.5, P 〈 0.01）. CONCLUSION： Our study suggests that chemical destruction of celiac ganglion under ultrasonic guidance is highly safe, and can evidently relieve cancer pain and improve the cellular immunity in patients with advanced pancreatic carcinoma.

关键词： Pancreatic carcinoma Analgesia Chemical destruction Ultrasonic intervention Celiac ganglion

SYNTHESIS AND CHARACTERIZATION OF SILAZANE OLIGOMER CONTAINING 1,1,3,3,5,5-HEXAMETHYLCYCLOTRISILAZANE

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Chinese Journal of Polymer Science 2000年第5期18卷 449-452页

作者： cai-hong xu Ning Zhou Ze-min Xie Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China 中科院化学所北京

A new silazane oligomer containing cyclotrisilazane was synthesized by KH-catalyzed dehydro-coupling reactions between diphenylsilane and 1,1,3,3,5,5-hexamethylcyclotrisilazane (D-3(N)).

关键词： silazane oligomer diphenylsilane cyclotrisilazane dehydro-coupling reaction