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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113条记录   Responsive Two-Photon Induced Europium Emission as Fluorescent Indicator for Paralytic Shellfish Saxitoxin [作者：HE SHUZHONG; LI HONGGUANG; YIP YUKWANG; YEUNG CHITUNG; FUNG YUEN ON; KONG HOIKUAN; YEUNG HOLUN; LAW GALAI; WONG KALEUNG; LEE CHISING; LAM MICHAEL HONWAH; MURPHY MARGARET B; LAM PAUL KWANSING; WONG WINGTAK,期刊：Organic Letters, 页码：5036-5039 , 文章类型： Article，,卷期：2011年13-19] A water-soluble europium(III) complex (1) has been synthesized and demonstrated to be a specific fluorescence probe for the paralytic shellfish toxin saxitoxin, a neurotoxin that blocks the voltage-gated sodium channels ... Pd-Catalyzed C4-Olefination of Oxazoles via C-H Bond Activation: Divergent Synthesis of Functionalized Amino Alcohol and Amino Acid Derivatives [作者：CUI SUNLIANG; WOJTAS LUKASZ; ANTILLA JON C,期刊：Organic Letters, 页码：5040-5043 , 文章类型： Article，,卷期：2011年13-19] A Pd-catalyzed C4-olefination of oxazoles via C-H bond activation under mild conditions was achieved. The reaction was shown to be general over a range of substrates. New protocols for the divergent transformation of the... Copper-Free Intramolecular Alkyne-Azide Cycloadditions Leading to Seven-Membered Heterocycles [作者：SAU MIRIAM; RODRIGUEZESCRICH CARIES; PERICAS MIQUEL A,期刊：Organic Letters, 页码：5044-5047 , 文章类型： Article，,卷期：2011年13-19] Treatment of alk-2-ynyl derivatives of enantiopure phenylglycidol with NaN(3) triggers a cascade reaction consisting of stereospecific and regioselective epoxide ring opening followed by intramolecular azide-alkyne cyclo... General and Scalable Amide Bond Formation with Epimerization-Prone Substrates Using T3P and Pyridine [作者：DUNETZ JOSHUA R; XIANG YANQIAO; BALDWIN AARON; RINGLING JUSTIN,期刊：Organic Letters, 页码：5048-5051 , 文章类型： Article，,卷期：2011年13-19] The mild combination of T3P (n-propanephosphonic acid anhydride) and pyridine has been developed for low-epimerization amide bond formation and implemented for the synthesis of a key intermediate to a glucokinase activat... Design and Synthesis of a Novel Triptycene-Based Ligand for Modeling Carboxylate-Bridged Diiron Enzyme Active Sites [作者：LI YANG; CAO RUI; LIPPARD STEPHEN J,期刊：Organic Letters, 页码：5052-5055 , 文章类型： Article，,卷期：2011年13-19] A novel triptycene-based ligand with a preorganized framework was designed to model carboxylate-bridged diiron active sites in bacterial multicomponent monooxygenase (BMM) hydroxylase enzymes. The synthesis of the bis(be... Coumarin-Cu(II) Ensemble-Based Cyanide Sensing Chemodosimeter [作者：JUNG HYO SUNG; HAN JI HYE; KIM ZEE HWAN; KANG CHULHUN; KIM JONG SEUNG,期刊：Organic Letters, 页码：5056-5059 , 文章类型： Article，,卷期：2011年13-19] An "ensemble"-based chemodosimeter 1-Cu(II) for cyanide detection is reported. 1-Cu(II) can recognize a cyanide ion over other anionic species to show a marked fluorescence enhancement under aqueous conditions. "Off-on" ... Asymmetric Synthesis of 3, 4-Diaminochroman-2-ones Promoted by Guanidine and Bisguanidium Salt [作者：DONG SHUNXI; LIU XIAOHUA; ZHANG YULONG; LIN LILI; FENG XIAOMING,期刊：Organic Letters, 页码：5060-5063 , 文章类型： Article，,卷期：2011年13-19] A highly enantioselective synthesis of 3,4-diaminochroman-2-ones has been realized via the domino reaction of o-hydroxy aromatic aldimines and azlactones. Notably, a cis-product was obtained as the major product by the u... Diastereo- and Enantioselective Conjugate Addition of 3-Substituted Oxindoles to Nitroolefins Catalyzed by a Chiral Ni(OAc)(2)-Diamine Complex under Mild Conditions [作者：HAN YANYAN; WU ZHIJUN; CHEN WENBING; DU XILIN; ZHANG XIAOMEI; YUAN WEICHENG,期刊：Organic Letters, 页码：5064-5067 , 文章类型： Article，,卷期：2011年13-19] A simple catalyst system assembled from an enantiomerically pure diamine ligand and Ni(OAc)(2) efficiently generates chiral metal enolates derived from 3-substituted oxindoles bearing an N-1 carbonyl group. The enolates ... Tricomponent Catalytic alpha,alpha-Difluorination of Acid Chlorides [作者：BLOOM STEVEN; SCERBA MICHAEL T; ERB JEREMY; LECTKA THOMAS,期刊：Organic Letters, 页码：5068-5071 , 文章类型： Article，,卷期：2011年13-19] The selective alpha,alpha-difluorination of carbonyl compounds remains a challenge in modern organic synthesis; current methods often incorporate stepwise processes and/or harsh conditions, providing unsatisfactory mixtu... Pd(0)-Catalyzed Iodoalkynation of Norbornene Scaffolds: The Remarkable Solvent Effect on Reaction Pathway [作者：LIU HUI; CHEN CHEN; WANG LIMIN; TONG XIAOFENG,期刊：Organic Letters, 页码：5072-5075 , 文章类型： Article，,卷期：2011年13-19] A palladium-catalyzed iodoalkynation of norbornene has been realized with the use of alkynyl iodides 1, which is found to be strongly solvent-dependent. MeCN favors 1,7-iodoalkylation product 3 while CCl(4) leads to 1,2-... Highly Convergent Synthesis of Chiral Bicyclophosphinates by Domino Hydrophosphinylation/Michael/Michael Reaction [作者：FOURGEAUD PIERRE; DAYDE BENEDICTE; VOLLE JEANNOEL; VORS JEANPIERRE; VAN DER LEE ARIE; PIRAT JEANLUC; VIRIEUX DAVID,期刊：Organic Letters, 页码：5076-5079 , 文章类型： Article，,卷期：2011年13-19] Diastereoselective domino reactions of iminoalcohols and allenyl H-phosphinates produce chiral phosphorus bicycles in a regio- and stereoselective fashion. A predictive model for diastereoselection is used for these new ... Synthesis and Intramolecular Hydrogen Bonding Networks of 2,4,6-Tri(o-hydroxyaryl)-1,3,5-Triazines [作者：CONN GREGORY; EISLER SARA,期刊：Organic Letters, 页码：5080-5083 , 文章类型： Article，,卷期：2011年13-19] Functionalized, triaryl substituted triazines were synthesized via the Friedel-Crafts arylation reaction. These conjugated triazines possess unique, intramolecular hydrogen bonding motifs, which provide tunable planarity... One-Pot Synthesis of Novel Photochromic Oxazine Compounds [作者：ZHAO WEILI; CARREIRA ERICK M,期刊：Organic Letters, 页码：5084-5087 , 文章类型： Article，,卷期：2011年13-19] A one-pot domino synthesis of photochromic 2,2-diarylphenanthro-(9,10)-[2H]-[1,4]-oxazines in excellent yield is described starting with acrylic acid derivatives. The reaction mechanism was studied by ReactIR and UV-vis.... Highly Facialselective Synthesis of Pyranose 1,3-Oxazines and Their Ring Opening with Nucleophiles: A Novel Entry to 2-C-Branched Glycosides [作者：YIN BIAOLIN; ZHANG ZEREN; XU LIWEN; JIANG HUANFENG,期刊：Organic Letters, 页码：5088-5091 , 文章类型： Article，,卷期：2011年13-19] A TMSOTf-promoted cycloaddition of N-benzoyl-N,O-acetals with various glycals and 3-deoxy glycals affords pyranose 1,3-oxazines with high facial selectivity. In addition, a highly diastereoselective ring opening of the r... New Water-Soluble Organic Capsules Are Effective in Controlling Excited-State Processes of Guest Molecules [作者：KULASEKHARAN REVATHY; RAMAMURTHY V,期刊：Organic Letters, 页码：5092-5095 , 文章类型： Article，,卷期：2011年13-19] Synthesis, inclusion properties, and ability to control excited-state properties of two water-soluble hosts are presented. These hosts surround the guest molecule(s) by forming a capsular assembly. By constraining the gu... Selective Synthesis of Hydroxy Analogues of Valinomycin using Dioxiranes [作者：ANNESE COSIMO; FANIZZA IMMACOLATA; CALVANO COSIMA D; DACCOLTI LUCIA; FUSCO CATERINA; CURCI RUGGERO; WILLIARD PAUL G,期刊：Organic Letters, 页码：5096-5099 , 文章类型： Article，,卷期：2011年13-19] A synthesis of representative monohydroxy derivatives of valinomycin (VLM) was achieved under mild conditions by direct hydroxylation at the side chains of the macrocyclic substrate using dioxiranes. Results demonstrate ...