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Synthesis, Crystal Structure of Bis-terpyridinyl-calix[4]arene Derivatives and Fluorescent Sensor for Zn2＋

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Chemical Research in Chinese Universities 2013年第5期29卷 874-878页

作者： LI Liang DU Li-ting SUN Jing yan chao-guo School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 P. R. China College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China

The calix[4]arene-based podands which incorporates two terpyridinyl functional groups derived from the alkylatiorl reactions of 4-（co-chloroalkoxyphenyl）-2,2＇：6＇,2＂-terpyridine in 1,3-alternate position at lower rim have been prepared in moderate yields. The structures of four pyridyl compounds were determined by X-ray single crystal diffraction method. The complexing properties of bis-terpyridinyl-calix[4]arenes for transition metal ions were inves- tigated by fluorescence spectra. Bis-terpyridinyl-calix[4]arenes gave a more efficient fluorescent sensing ability to Zn2＋.

关键词： Calixarene Terpyridine Ionic recognition Crystal structure

Efficient One-pot Synthesis of Pyrrolo[2,1-a]isoquinoline and Pyrrolo[1,2-a]quinoline Derivatives

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Chemical Research in Chinese Universities 2012年第6期28卷 990-993页

作者： LIU Zhen-ming WU Lei SUN Jing yan chao-guo Analysis and Test Center & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China College of Chemistry & Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China

A one-pot sequential reaction for efficient synthesis of pyrrolo[2,1-a]isoquinoline and pyrrolo[1,2-a]quinoline derivatives has been *** reaction included firstly the Cu-catalyzed three-component reaction of isoquinoline（quinoline）,acetylenedicarboxylate and alkynylbenzene and then Cs 2 CO 3-promoted intramolecular cyclization reaction of initially formed 1-alkenyl-2-alkynyl-1,2-dihydroisoquinoline（1,2-dihydroquinoline）.

关键词： Indolizine Pyrrolo[2 1-a]isoquinoline One-pot reaction Three-component reaction

Syntheses and Crystal Structures of Calix[4]arene Dithiocarbazate Schiff Bases

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Chemical Research in Chinese Universities 2010年第4期26卷 572-577页

作者： SUN Jing LIU Dong-mei WANG Jin-xiang yan chao-guo College of Chemistry and Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China

The regioselective syntheses of novel p-tert-butylcalix[4]arenes with functional aldehyde and dithiocarbazate Schiff base groups were carried out. p-tert-Butylcalix[4]arene was alkylated with o-, p-（ω-chloroalkoxy）- benzaldehydes in the system of K2CO3/KI/CH3CN to give calixarene 1,3-dialdehydes. Then the condensation reactions of active calixarene aldehydes with S-methyl and S-benzyldithiocarbazate, calixarene sulfur-containing Schiff bases were efficiently obtained in satisfied yields. The single crystal analysis of the four representative products shows that calixarene aldehydes and Schiff bases exist in cone conformation and there are interesting intermolecular hydrogen-bands and π...π interaction in the crystals.

关键词： Calixarene Alkvlation S-Alkvldithiocarbazate Schiff base: Crystal structure

Microwave Assisted Synthesis of 3,3',3″,3'″-o-,p-Phenylenedi-methylidinetetrakis-(4-hydroxy-2H-1-benzopyran-2-one)

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Chemical Research in Chinese Universities 2010年第6期26卷 933-936页

作者： AN Lin LIU Dong-mei WANG Jin-xiang yan chao-guo College of Pharmacy Xuzhou Medical College Xuzhou 221004 P. R. China College of Chemistry ＆ Chemical Engineering Yangzhou University Yangzhou 225002 P. R. China

Under microwave irradiation,2,2＇-alkoxy-bridging or 4,4＇-alkoxy-bridging dibenzaldehydes reacted with 4-hydroxycoumarin in DMF to give a series of 3,3＇,3″,3＇″-o-and 3,3＇,3″,3＇″-p-phenylenedimethylidinetetrakis-（4-hydroxy-2H-1-benzopyran-2-ones） in moderate *** structures of the synthetic coumarin derivatives were characterized with IR,1H NMR and MS spectroscopy as well as X-ray single crystallography.

关键词： Microwave irradiation One-pot reaction Coumarin Benzopyran-2-one

The Butterfly Selenato-bridged Cluster(μ-PhCH_2Se)_2Fe_2(CO)_6

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Chinese Journal of Structural Chemistry 2000年第3期19卷 159-162页

作者： yan chao guo [WT5”BZ] (Department of Chemistry, yangzhou University, yangzhou 225002) 扬州大学江苏扬州 2 2 50 0 2

The title compound (μ PhCH 2Se) 2Fe 2(CO) 6, C 20 H 14 O 6Se 2Fe 2, M r =619.94, is a representative of the family of diselenato bridged hexacarbonyl diiron clusters. It crystallized in the triclinic system, space group P 1(#2), with a=12.973(7), b=12.982(4), c=7.954(4), α=97.74(3)°, β=107.57(4)°, γ=113.65(3)°, V=1118(1)  3, Z=2, D c =1.840 g/cm 3, F(000) =604.00, μ (Mo Kα )=45\^83cm -1 , λ = 0.71069. The structure was refined to R=0.034, R w = 0.045 for 2982 observed reflections ( I> 3.00σ(I )). The molecule exhibits essentially butterfly shaped core Fe 2Se 2 shape with the dihedral angle of 94.13 between two wings. Each methylene in two benzyl groups is attached to the bridged selenato atom by an e type of bond.

关键词： cluster carbonyl iron selenium crystal structure.

PHASE TRANSFER CATALYZED DARZENS REACTION OF 9-CHLOROFLUORENE

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Chinese Chemical Letters 1991年第5期2卷 359-360页

作者： Wu Ji TAO yan chao guo Lu Wen XING Department of Chemistry Yangzhou Teachers College Yangzhou225002

9-Chlorofluorene reacted with aromatic aldehydes and ketones in the presence of phase transfer catalyst, giving the Darzens condensation epoxy products.

关键词： Cl PHASE TRANSFER CATALYZED DARZENS REACTION OF 9-CHLOROFLUORENE

Construction Diverse Spirooxindoles via Heteroaromatic N-ylides

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Construction Diverse Spirooxindoles via Heteroaromatic N-yli...

Selective synthesis of 1,2-diaryl and 1,4-diaryl pyrrolo[3,4-b]pyridines

中国化学会全国第十二届有机合成化学学术研讨会

作者： yan,chao-guo College of Chemistry ＆ Chemical Engineering Yangzhou University

Heteroaromatic N-ylides such as pyridinium,quinolinium,isoquinolinium,and N-benzylbenzimidazolium methylides,etc,are reactive azomethine ylides,which can be easily obtained from sequential alkylation of aza-aroamtic heterocycles with active alkyl halides and deprotonation with *** heteroaromatic N-ylides have been extensively used in 1,3-dipolar cycloaddition for synthesis of the various nitrogen-containing heterocycles such as polysubstituted pyridines,terpyridines and *** recent years,we investigated the 1,3-dipolar cycloaddition reactions of various heteroaromatic N-ylides with 3-methyleneoxindole derivatives such as 3-phenacylidenexoindoles and isatylidine *** spirooxindole systems including spiro[cyclopropane-1,3’-indolines],spiro[indoline-3,3’-pyrrolo[1,2-a]quinolines],dispirocyclopentanebisoxindoles,and dispirocyclohexyl-3,3’-bisoxindoles can be selectively synthesized by changing of the substrates and reaction conditions.

关键词： pyridinium N-ylide indolizine spirooxindole 1,3-dipolar cycloaddition

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Selective synthesis of 1,2-diaryl and 1,4-diaryl pyrrolo[3,4...

中国化学会全国第十二届有机合成化学学术研讨会

作者： Jiang,yan-Hong yan,chao-guo College of Chemistry ＆ Chemical Engineering Yangzhou University

β-Enaminones and β-enamino esters,which combine the nucleophilic enamine and the electrophilic enone（ester） moieties into one molecule,represent important synthetic building blocks and have been extensively employed as synthons for the synthesis of a wide variety of heterocycles.3-Arylamino-1-methyl-1H-pyrrole-2,5-diones,which can be easily prepared from the reaction of arylamine,dimethyl acetylenedicarboxylate and methylamine,maintain the structural character of β-enaminones and β-enamino *** recent years,we have developed several domino reactions based on the high reactivity of 3-arylamino-1-methyl-1H-pyrrole-2,5-diones for synthesis of hetrocyclic *** found that the cyclization reaction of various cinnamaldehydes with 3-arylamino-1-methyl-1H-pyrrole-2,5-diones afforded predominately 1,2-diaryl-pyrrolo[3,4-b]pyridines in 50-80% yields in the presence of piperidine as base *** piperidinium trifluoroacetate was used as catalyst,the same reaction gave a mixture of 1,2-diaryl and 1,4-diaryl pyrrolo[3,4-b]pyridines in moderate yields.

关键词： Enaminone acetyelenedicarboxylate cinnamaldehyde pyrrolo[3,4-b]pyridine

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间苯二酚杯芳烃树枝醇类化合物的合成

有机化学 2005年第4期25卷 414-418页

作者：戈云颜朝国扬州大学化学化工学院扬州225002

用间苯二酚杯芳烃的氧代乙酸乙酯类衍生物1a～1b分别与三羟甲基甲胺和二乙醇胺在乙醇/甲苯中进行酰胺化反应,合成了四种新型的间苯二酚杯芳烃树枝醇化合物2a～2d,树枝醇2a～2d外缘的羟基用乙酸酐酯化,得到全乙酰基衍生物3a～3d.化合物... 详细信息

用间苯二酚杯芳烃的氧代乙酸乙酯类衍生物1a～1b分别与三羟甲基甲胺和二乙醇胺在乙醇/甲苯中进行酰胺化反应,合成了四种新型的间苯二酚杯芳烃树枝醇化合物2a～2d,树枝醇2a～2d外缘的羟基用乙酸酐酯化,得到全乙酰基衍生物3a～3d.化合物结构都用1HNMR,IR和元素分析等方法进行了表征,对树枝醇化合物的聚集状态进行了光学显微镜观察.

关键词：间苯二酚杯芳烃醇类化合物树枝合成三羟甲基甲胺酰胺化反应酯类衍生物化合物结构酰基衍生物显微镜观察二乙醇胺元素分析聚集状态乙酸酐 ^1H NMR IR 光学