个性化文献订阅>文章检索

文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共39条记录   Cyclopenta[c]pyrans [作者：TINTAS MIHAELA; BOGDAN ELENA; GROSU ION,期刊：Journal of Heterocyclic Chemistry, 页码：747-762 , 文章类型： Review，,卷期：2011年48-4] Natural occurrence, synthesis, chemical behavior, and physical properties of aromatic cyclopenta[c]pyrans are reviewed. Various strategies for the synthesis of cyclopenta[c]pyrans starting from cyclopentadienes, fulvenes... Regio- and Stereoselective Synthesis of 1-Benzopyrano[2,3-b]pyrrolo[2,3-d]pyridines: A Microwave-Accelerated Intramolecular [3+2] Cycloaddition Reaction of Azomethine Ylide [作者：MAITI SOURAV; LAKSHMYKANTH T M; PANJA SUMAN KALYAN; MUKHOPADHYAY RANJAN; DATTA AYAN; BANDYOPADHYAY CHANDRAKANTA,期刊：Journal of Heterocyclic Chemistry, 页码：763-768 , 文章类型： Article，,卷期：2011年48-4] Regio-and stereoselective syntheses of tetracyclic compounds having chromone, pyrrolidine, and piperidine rings have been accomplished by an intramolecular [3+2] cycloaddition reaction involving azomethine ylide. The rea... Complexes of Iron(III) and Chromium(III) Salen and Salophen Schiff Bases with Bridging 1,3,5-Triazine Derived Multidirectional Ligands [作者：KOC ZIYA ERDEM,期刊：Journal of Heterocyclic Chemistry, 页码：769-775 , 文章类型： Article，,卷期：2011年48-4] A new synthetic route for preparing multidirectional ligands was developed by using 2,4,6-trichloro-1,3,5- triazine (cyanuric chloride) as core. The reaction included the selective substitutions of 4-aminobenzoic acid on... Synthesis of Spiro Thiazolo[3,2-a]pyrimidine Compounds by One-Pot Sequential 1,3-Dipolar Cycloadditions [作者：LI XIAOFANG; ZHENG AITING; LIU BIN; LI GUOBIN; YU XIANYONG; YI PINGGUI,期刊：Journal of Heterocyclic Chemistry, 页码：776-779 , 文章类型： Article，,卷期：2011年48-4] A new class of spiro thiazolo[3,2-a]pyrimidine compounds were synthesized by the one-pot sequential 1,3-dipolar cycloaddition of azomethine ylide (generated from isatin and sarcosine) nitrile oxide to 2-arylmethylidene-6... Some New Information on the Formation of Substituted 4-Amino-1-Substituted Phenyl-1H-Pyrazoles from beta-Enaminones and Diazonium Tetrafluoroborates [作者：SIMUNEK PETR; MACHACEK VLADIMIR; SVOBODOVA MARKETA; RUZICKA ALES,期刊：Journal of Heterocyclic Chemistry, 页码：780-786 , 文章类型： Article，,卷期：2011年48-4] Upon reaction of 2-methyl-, 3-ethoxycarbonyl, and 4-ethoxycarbonylbenzenediazonium tetrafluoroborate with 1-cyclopropyl-3-phenylaminohex-2-en-1-one 3-cyclopropylcarbonyl-1-(substituted phenyl)-5-ethyl-4-phenylamino- 1H-p... Facile Synthesis of New Imidazoles from Direct Reaction of 2,3-Diamino-1,4-naphthoquinone with Aldehydes [作者：ALY ASHRAF A; HASSAN ALAA A; BROWN ALAN B; ELSHAIEB KAMAL M; BEDAIR TAREK M I,期刊：Journal of Heterocyclic Chemistry, 页码：787-791 , 文章类型： Article，,卷期：2011年48-4] New imidazoles were easily prepared from 2,3-diamino-1,4-naphthoquinone and stoichiometric quantities of the appropriate aldehydes in dimethyl sulfoxide as a solvent. The reaction proceeded for few hours. The procedure c... A Simple, Diversity Oriented Synthesis of Highly Substituted Pyridines [作者：KACZANOWSKA KATARZYNA; EICKHOFF HOLGER; ALBERT KLAUS; WIESMUELLER KARLHEINZ; SCHAFFNER ARNAUDPIERRE,期刊：Journal of Heterocyclic Chemistry, 页码：792-798 , 文章类型： Article，,卷期：2011年48-4] A particularly straightforward and efficient protocol for the synthesis of highly substituted pyridines, based on a condensation reaction of beta-aminocrotonitrile and easily accessible (E)-2-oxo-4-aryl-but-3-enoic acids... ZrCl(4)/[bmim]BF(4)-Catalyzed Condensation of Salicylaldehydes and Malononitrile: Single-Step Synthesis of 3-Cyanocoumarin Derivatives [作者：VALIZADEH HASSAN; MAHMOODIAN MANZAR; GHOLIPOUR HAMID,期刊：Journal of Heterocyclic Chemistry, 页码：799-802 , 文章类型： Article，,卷期：2011年48-4] A versatile and efficient single-step route to 3-cyanocoumarins via Knoevenagel condensation of salicylaldehydes and malononitrile using ZrCl(4) as the catalyst (15 mol %) in ionic liquid 1-(n-butyl)-3-methylimidazolium ... Green Chemistry Approach to the Synthesis of 2-Aryl-4-ferrocenyl-quinoline Derivatives under Microwave Irradiation [作者：MA NING; LU HAN; WU FEIYUE; ZHANG GE; JIANG BO; SHI FENG; GAO YUAN; TU SHUJIANG,期刊：Journal of Heterocyclic Chemistry, 页码：803-807 , 文章类型： Article，,卷期：2011年48-4] A clean and expeditious route for the synthesis of 2-aryl-4-ferrocenyl-quinoline derivatives through microwave-assisted multicomponent reaction of ferrocenecarboxaldehyde with ketone and dimedone in the presence of ammon... Synthesis of Heterocyclic Substituted Norcantharidin Derivatives [作者：DENG LIPING; YONG ZHANG; TAO WEIFENG; SHEN JIANFENG; WANG WEI,期刊：Journal of Heterocyclic Chemistry, 页码：808-813 , 文章类型： Article，,卷期：2011年48-4] Twenty novel norcantharidin derivatives, which were substituted by thiazole ring, were synthesized in a single step by the [3+2] 1,3-dipolar cycloaddition reaction with oxime or hydrazone in the presence of chloramine-T ... Modifications to the Vilsmeier-Haack Formylation of 1,4-Dimethylcarbazole and Its Application to the Synthesis of Ellipticines [作者：DEANE FIONA M; MILLER CHARLOTTE M; MAGUIRE ANITA R; MCCARTHY FLORENCE O,期刊：Journal of Heterocyclic Chemistry, 页码：814-823 , 文章类型： Article，,卷期：2011年48-4] An improved method for the preparation of 3-formyl-1,4-dimethylcarbazole, a key intermediate in the synthesis of ellipticine, is presented. Conditions of the Vilsmeier-Haack reaction have been modified to facilitate the ... 1,3-Dipolar Cycloaddition of Unstabilized N-Methyl Azomethine Ylide to Nitrobenzene Annelated with Azoles [作者：STAROSOTNIKOV ALEXEY M; BASTRAKOV MAXIM A; PECHENKIN SERGEY YU; LEONTIEVA MARGARITA A; KACHALA VADIM V; SHEVELEV SVYATOSLAV A,期刊：Journal of Heterocyclic Chemistry, 页码：824-828 , 文章类型： Article，,卷期：2011年48-4] The 1,3-dipolar cycloaddition of unstabilized N-methyl azomethine ylide to mononitro benzazoles was studied. Depending on the nature of substituents and annelated azoles, the reaction affords previously unknown isoindole... Synthesis, Insecticidal Activities, and Molecular Docking Studies of 1,5-Disubstituted-1,3,5-hexahydrotriazine-2-(N-nitro)imines [作者：SUN CHUANWEN; WANG HAIFENG; ZHU JUN; YANG DINGRONG; JIN JIA; XING JIAHUA,期刊：Journal of Heterocyclic Chemistry, 页码：829-835 , 文章类型： Article，,卷期：2011年48-4] A series of novel neonicotinoids analogs were designed by modifying the pharmacophore of imidacloprid to 1,3,5-hexahydrotriazine conjugated to nitroimine (=NNO(2)) and introducing the phenyl or arylmethyl at the 5-positi... Synthesis and Antimicrobial Activity of Some 7-Aryl-5,6-dihydro-14aza[1]benzopyrano[3,4-b]phenanthren-8H-ones [作者：BRAHMBHATT DINKER I; PATEL NIRAJ H; PATEL ANIL K; PATEL MEHUL A; PATEL VARUN G,期刊：Journal of Heterocyclic Chemistry, 页码：840-844 , 文章类型： Article，,卷期：2011年48-4] The title compounds, 7-aryl-5,6-dihydro-14-aza[1]benzopyrano[3,4-b]phenanthren-8H-ones 3a-l have been synthesized by reacting various 4-hydroxy coumarins 1a-c with 2-arylidene-1-tetralones 2a-d in the presence of ammoniu... An Efficient One-Pot Synthesis of Bis-Indolylmethanes Containing Pyrazolyl Catalyzed by Bronsted Acidic Ionic Liquid Under Solvent-Free Conditions [作者：LIU CHENJIANG; YU CHUANJI,期刊：Journal of Heterocyclic Chemistry, 页码：845-848 , 文章类型： Article，,卷期：2011年48-4] Bronsted acidic ionic liquid [PyNCH(2)CO(2)H][HSO(4)] was found to be an effective catalyst for the condensation reactions of indoles with various 4-formylpyrazoles to afford the corresponding bis-indolylmethanes contain... Novel Synthesis and Biological Activity of 2-Substituted Derivatives of 3-Cyano-4-imino-2-methylthio-8-methoxy-4H-pyrimido[2,1-b][1,3]benzothiaz ole and 3-Amino-4-imino-8-methoxy-2H-pyrazolo[3 ',4 ':4,5]pyrimido[2,1-b][1,3]benzothiazole [作者：BADNE S G; SWAMY D K; BHOSALE V N; KUBERKAR S V,期刊：Journal of Heterocyclic Chemistry, 页码：849-855 , 文章类型： Article，,卷期：2011年48-4] 2-Amino-6-methoxybenzothiazole 1 on reaction with bis(methylthio) methylene malononitrile 2 in the presence of dimethyl formamide and catalytic amount of anhydrous potassium carbonate afforded 3-cyano-4-imino-8-methoxy-4...