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STUDIES ON BIPYRIDINIUM SALTS AND THEIR POLYMERS Ⅰ. SYNTHESIS OF 4, 4’-(1, 4-PHENYLENE-)BIS-[N-ALKYL (ARYL)-2, 6-DIPHENYL-] PYRIDINIUM SALTS AND THEIR POLYMERS FROM CORRESPONDING BIPYRYLIUM SALT

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高分子科学(英文版) 1985年第3期 185-193页

作者：杨玉崑 Insitute of Chemistry Academia Sinica Beijing

The reaction of pyrylium salt with primary amine has been utilized to synthesize 4,4’-bipyri-dinium salts and pyridinium polymers. Seven new 4,4’-(1,4-phenylene-) bis-[N-alkyl(aryl)-2,6-diphenyl-] pyridinium perchlorates 4 and five corresponding bipyridinium polymers 5 were preparedwith good yields from 4,4’-(1,4-phenylene-) bis-(2,6-diphenyl-) pyrylium perchlorate 3. Preliminarytests have been made for their redox behavior and catalytic activity.

关键词： phenylene alkyl ARYL BIS DIPHENYL N-ALKYL PHENYLENE SYNTHESIS OF 4 diphenyl synthesize

Novel Synthesis of the Hapten and Identification of the Artificial Antigen for Carbofuran

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Novel Synthesis of the Hapten and Identification of the Arti...

NOVEL SYNTHESIS OF ISOHARRINGTONINE

2007中国科协年会

作者： Derui Zhu~1 Deli Liu~(1,2) Yali Ben~(1,3) Qinqin Hu~1 Wenchang Lu~2 Li Xiong~1 Shenghua Liu~2 1.College of Life Science,Central China Normal University,Wuhan 430079,China 2.Key Laboratory of Pesticide & Chemical Biology (Huazhong University),Ministry of Education,Wuhan,430079,China 3.Jianghan University,Wuhan 430016,China

Carbofuran (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate) is a widely used systemic and contact N-methylcarbamate pesticide applied to control insect and nematode pests on a variety of agricultural crops.Consequently,the residues of carbofurnan may pose a potential hazard for the health of consumers.Therefore,to watch to the safety of our food supply and set up monitoring programs of pesticide residues on agricultural crops is very important.A hapten 6-[(2,3-dihydro-2,2-dimetyl-7-benzofuranyloxy) carbonyl] amino] hexanoic acid [BFNH] completely preserving the carbamate group of carbofuran was synthesized with 2,3-dihydro-2,2-dimrthyl-7-benzofuranol and aminocaproic acid,which was activated with 4-nitrophenyl chloroformate.And then the BFNH hapten was covalently attached to bovine serum album by utilizing the modified active ester method to synthesize antigen BFNH-BSA.And coating antigens BFNH-OVA for carbofuran were also synthesized by conjugating BFNH to ovalbumin with the mixed-anhydride method.The coupling ratios of BFNH-BSA and BFNH-OVA were 18:1 and 5:1,respectively.

关键词： carbofuran hapten antigen synthesize

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Chinese Science Bulletin 1984年第8期29卷 1131-页

作者：李援朝李裕林黄文魁 Institute of Organic Chemistry Lanxhou University

Isoharringtonine is one of the four ester alkaloids in Cephalotaxus plant, possessing antitumor activity. In a previous work, a successful way to synthesize isoharringtonine (3) has been reported [see this Journal, 28(1983), 1355].In the present letter, a novel way for synthesis of isoharringtonine (3)in a single step by using the crossed pinacolic coupling reaction is introduced. The reaction equation is shown as follows:

关键词： crossed letter alkaloids antitumor synthesize instead vent benzene reagent diethyl

Large-scale genetic analysis in sesame

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Science Foundation in China 2016年第1期24卷 48-页

With the support from the National Natural Science Foundation of China,the Ministry of Science and Technology of China and the Chinese Academy of Agricultural of Sciences,the sesame genetic improvement team led by Prof.Zhang XiuRong(张秀荣)from the Oilcrops Research Institute,Chinese Academy of Agricultural Sciences,cooperated with the research team led by Prof.Han Bin and Prof.Huang

关键词：张秀 sequenced alleles agronomic synthesize crops haplotype SNPs lignin diploid

Protein catenation in vivo

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Science Foundation in China 2016年第2期24卷 49-49页

With the support by the National Natural Science Foundation of China,the research team led by Prof.Zhang Wenbin(张文彬)at the Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,Center for Soft Matter Science and Engineering,College of Chemistry and Molecular Engineering,Peking University,reported a strategy to synthesize protein catenanes via direct expression in E.coli.

关键词： Peking synthesize digestion supramolecular assembly mechanically occasionally clearly minutes affinity

Ultrasmall black phosphorus quantum dots

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Science Foundation in China 2016年第1期24卷 47-页

With the support by the National Natural Science Foundation of China and the Peacock Team Project of Shenzhen,the research team led by Prof.Yu XueFeng(喻学锋)at Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,cooperated with the teams led by Prof.Zhang Han(张晗)at Shenzhen University and P.K.Chu(朱剑豪)at City University of HongKong,and reported recently

关键词： phosphorus 朱剑 toxicity extinction physiological penetration story compatible Figure synthesize

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阻容元件

电子科技文摘 2002年第6期 11-11页

Y2002-63059-500 0210328计算与综合任意RC多通道降秩无源模型的谱算法=Spectral algorithm to compute and synthesize reduced or-der passive models for arbitrary RC multiports〔会,英〕/Batterywala,S.H.& Narayanan.H.//2001 IE... 详细信息

关键词：阻容元件 compute 熔断电阻器 synthesize arbitrary 源模型正交试验设计在线测试极化电池熔断时间