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FeCl_3 catalyzed diarylmethanes formations

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Chinese Chemical Letters 2009年第5期20卷 511-513页

作者： Zhong Xian Li Zheng Duan yang jie wu Chemistry Department Key Lab of Chemical Biology and Organic Chemistry of Henan Province Key and Open Lab of Applied Chemistry of Henan Universities Zhengzhou University Zhengzhou 450052 PR China

Under mild condition, using FeCl3 as catalyst, a series of fnnctionalized diarylmethanes were prepared efficiently from the reactions of arenes with paraformaldehyde. This catalytic system is not sensitive to air and ...

关键词： Diarylmethanes Paraformaldehyde FeCl3

Iodine Mediated Efficient Formation of Ferrocenylcyanide in Aqueous Solution

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Chinese Chemical Letters 2006年第7期17卷 880-882页

作者： Zheng DUAN Zhong Xian LI yang jie wu Chemistry Department Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan Universities Zhengzhou University Zhengzhou 450052

Ferrocenecarboxyaldehyde reacted with iodine in commercial available ammonia water gave ferrocenylcyanide with high yield.

关键词： Ferrocenylcyanide iodine aqueous ammonia preparation.

Humidity Sensitive Properties of a Silicone-containing Polyelectrolyte Material

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Chinese Chemical Letters 2006年第1期17卷 73-76页

作者： Mu jie yang Zong wu YAO You Si CHEN yang LI Department of polymer science and Engineering Zhejiang University Hangzhou 310027

Resistive-type film humidity sensors were prepared with a silicone-containing polyelectrolyte （Si-PE） and their humidity sensitive properties have been investigated. The sensors so obtained show high sensitivity to humidity variation over a wide range of RH （20-96%）. In addition, they exhibit high reversibility, quick response and well long-term stability.

关键词： Humidity sensor silicone-containing polyelectrolyte humidity sensitive properties.

Studies on the Synthesis and Complexing Behavior of Crown Ethers with External Coordination Center

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Chinese Chemical Letters 2001年第6期12卷 479-482页

作者： Jing Chao TAO yang jie wu* Shang jie XU Da Peng ZOU Department of Chemistry Zhengzhou UniversityZhengzhou 450052

The synthesis, characterization of five ditopic or tritopic crown compounds were reported in this paper together with the preparation of the corresponding hetero-dinuclear and hetero-trinuclear complexes with differen...

关键词： Polytopic crown ether hetero-polynuclear complex co-ordination

Enantiomeric Excess Determination of Amino Acids with Chiral Cyclopalladated Ferrocenylimine

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Chinese Chemical Letters 1999年第2期10卷 127-128页

作者： Xiu Ling CUI yang jie wu Liang Ru yang(Department of Chemistry, Zhengzhou University, Zhengzhou, 450052) Zhengzhou Univ Dept Chem Zhengzhou 450052 Peoples R China

An efficient NMR determination of the enantiomeric excess of the amino acids can be achieved using chloro-bridged dimer R- (+)-{Pd [(eta(5)-C5H5)Fe (eta(5)-C5H3CMe=NAr)] (mu-Cl)}2 (Ar=p-CH3C6H4) (R-1).

关键词： determination e.e% amino acids chiral cyclopalladated ferrocenylimine

Synthesis and Characterization of Boron Complex of Calix[4]arene

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Chinese Chemical Letters 1999年第2期10卷 99-100页

作者： Kui LU yang jie wu Zhi Xian ZHOU(Department of Chemistry, Zhengzhou University, 450052) Zhengzhou Univ Dept Chem Zhengzhou 450052 Peoples R China

A new boron complex of calix[4]arene was synthesized by the reaction of calix[4]arene with BMS; and the structure of the product was characterized by IR- (HNMR)-H-1. (CNMR)-C-13, (BNMR)-B-11 and MS spectra.

关键词： boron complex calixarene synthesis characterization

Synthesis and Structures of New Cyclopalladated Ferrocenylimines

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Chinese Chemical Letters 2006年第3期17卷 317-320页

作者： Xue Mei ZHAO Xin Qi HAO Bin LIU Mao Ping SONG yang jie wu Department of Chemistry Zhengzhou University Henan Key Laboratory of Chemical biology and Organic Chemistry Zhengzhou 450052

The new complexes, [PdCl{C5H4FeC5H4CHRN=CHC4H3O}（Ph3P）] （R= H, CH3） were synthesized via two novel Schiff bases （C5H5FeC5H4CHRN=CHC4H3O, R= H, CH3） with lithium tetrachloropalladate （Ⅱ）, and characterized by IR, elemental analysis, ^1H NMR. Complex 5a was further determined by X-ray single crystal diffraction. We found that it contained an intramolecular N→Pd coordination in the compound 5a, and the palladium atom was bound to the unsubstituted Cp ring. The Pd-N, Pd-C （I） and Pd-O bond lengths were 2.121 （3）, 2.008 （4） and 2.990 ）A, respectively.

关键词： Heteroannular ferrocenylimine cyclopalladated.

A New Pathway to Synthesize Cyclomercurated Ferrocenylimines Containing Heterocyclic Ring

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Chinese Chemical Letters 2003年第7期14卷 673-676页

作者： Kun Hua LIN Mao Ping SONG Chen Xia DU Qiao Hong ZHANG yang jie wu Department of Chemistry Zhengzhou UniversityHenan Key Laboratory of Applied ChemistryZhengzhou 450052

The cyclomercurated ferrocenylimines containing heterocyclic ring were prepared by the condensation of cyclomercuration of acylferrocene with the appropriate heterocyclic amine. This procedure provides an efficient method for the synthesis of cyclomerucurated ferroceny- limines containing heterocyclic ring which are difficultly synthesized by the conventional method. The reaction mechanism is proposed.

关键词： Heterocyclic ring containing cyclomercurated ferrocenylimine synthesis.

Kinetics and mechanism of mercuration of N-(substituted benzylidene)-4-toluidines

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Chinese Journal of Chemistry 1993年第6期11卷 554-559页

作者： yang-jie wu Kui-Ling Ding Ya-Li Kong Zheng-Yan Yu Department of Chemistry Zhengzhou University Zhengzhou Henan 450052

In order to investigate the mechanism of mercuration reaction of substituted ben- zylideneanilines, kinetic measurements of these reactions at different temperatures (40-60℃) in methanol-l,4-dioxane (1/1, V/V) were carried out and Hammett ρ value for C-phenyl substituents of-0.61 for the N-(substituted benzylidene)-4-toluidine series was obtained. Thermodynamic parameters E_a, △S~≠ were obtained for the reaction of different. N-(substituted benzylidene)-4- toluidines. It was found that this ortho-mercuration was brought about by an internal cyclometal- lation process involving the imino-moiety.

关键词： Kinetics and mechanism of mercuration of N substituted benzylidene