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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58条记录   One-Pot Synthesis of Pyrimido[1,6-a]indol-1(2H)-one Derivatives by a Nucleophilic Addition/Cu-Catalyzed N-Arylation/Pd-Catalyzed C-H Activation Sequential Process [作者：WANG ZHIJING; YANG JIANGUO; YANG FAN; BAO WEILIANG,期刊：Organic Letters, 页码：3034-3037 , 文章类型： Article，,卷期：2010年12-13] A novel and convenient one-pot synthesis of pyrimido[1,6-a]indol-1(2H)-one derivatives through a nucleophilic addition/Cu-catalyzed N-arylation/Pd-catalyzed C H activation sequential process is described. The reaction of... Ruthenium Chloride as an Efficient Catalytic Precursor for Hydroarylation Reactions via C-H bond Activation [作者：SIMON MARCOLIVIER; GENET JEANPIERRE; DARSES SYLVAIN,期刊：Organic Letters, 页码：3038-3041 , 文章类型： Article，,卷期：2010年12-13] A very simple and efficient catalytic system for the hydroarylation of olefins by aromatic ketones and Michael acceptors using simple and inexpensive ruthenium trichloride as a ruthenium source is described. These very m... Mechanistic Origin of the Stereodivergence in Decarboxylative Allylation [作者：CHATTOPADHYAY KALICHARAN; JANA RANJAN; DAY VICTOR W; DOUGLAS JUSTIN T; TUNGE JON A,期刊：Organic Letters, 页码：3042-3045 , 文章类型： Article，,卷期：2010年12-13] A stereochemical test has been used to probe the mechanism of decarboxylative allylation. This probe suggests that the mechanism of DcA reactions can change based on the substitution pattern at the alpha-carbon of the nu... Introduction of All-Hydrocarbon i,i+3 Staples into alpha-Helices via Ring-Closing Olefin Metathesis [作者：KIM YOUNGWOO; KUTCHUKIAN PETER S; VERDINE GREGORY L,期刊：Organic Letters, 页码：3046-3049 , 文章类型： Article，,卷期：2010年12-13] The introduction of all-hydrocarbon i,i+3 staples into alpha-helical peptide scaffolds via ring-closing olefin metathesis (RCM) between two alpha-methyl,alpha-pentenylglycine residues incorporated at i and i+3 positions,... Biscrown-Annulated TTFAQ-Dianthracene Hybrid: Synthesis, Structure, and Metal Ion Sensing [作者：SHAO MIN; DONGARE PRATEEK; DAWE LOUISE N; THOMPSON DAVID W; ZHAO YUMING,期刊：Organic Letters, 页码：3050-3053 , 文章类型： Article，,卷期：2010年12-13] A new fluorescence chemosensor (3) made up of a biscrown-annulated TTFAQ receptor and two anthracene fluorophores was designed and synthesized. Its solid-state structure was disclosed by X-ray crystallographic analysis, ... Development of Chiral Terminal-Alkene-Phosphine Hybrid Ligands for Palladium-Catalyzed Asymmetric Allylic Substitutions [作者：LIU ZHAOQUN; DU HAIFENG,期刊：Organic Letters, 页码：3054-3057 , 文章类型： Article，,卷期：2010年12-13] A variety of novel chiral terminal-alkene phosphine hybrid ligands were successfully developed from diethyl L-tartrate for palladium-catalyzed asymmetric allylic alkylations, etherifications, and amination to give the de... Enantioselective Henry Addition of Methyl 4-Nitrobutyrate to Aldehydes. Chiral Building Blocks for 2-Pyrrolidinones and Other Derivatives [作者：BLAY GONZALO; HERNANDEZOLMOS VICTOR; PEDRO JOSE R,期刊：Organic Letters, 页码：3058-3061 , 文章类型： Article，,卷期：2010年12-13] A catalytic highly enantioselective Henry addition of methyl 4-nitrobutyrate to aldehydes using a Cu(II) amino pyridine complex as catalyst is described. The products resulting from this reaction constitute a new, highly... Photochemistry of 4-Chlorophenol and 4-Chloroanisole Adsorbed on MFI Zeolites: Supramolecular Control of Chemoselectivity and Reactive Intermediate Dynamics [作者：DA SILVA JOSE P; JOCKUSCH STEFFEN; MARTINHO JOSE M G; OTTAVIANI M FRANCESCA; TURRO NICHOLAS J,期刊：Organic Letters, 页码：3062-3065 , 文章类型： Article，,卷期：2010年12-13] The phototransformation of aryl chlorides adsorbed on MFI zeolites is markedly different from that observed in solution and other solid surfaces such as silica. The formation of radical cations and the constraints impose... Preparation of Tetrasubstituted Furans via Intramolecular Wittig Reactions with Phosphorus Ylides as Intermediates [作者：KAO TZUTING; SYU SIANGEN; JHANG YIWUN; LIN WENWEI,期刊：Organic Letters, 页码：3066-3069 , 文章类型： Article，,卷期：2010年12-13] Novel preparation of tetrasubstituted furans, starting from the Michael acceptors, tributylphosphine, and acyl chlorides, is realized. A broad range of highly functional furans can be efficiently generated in one step at... Branched Alkanes Have Contrasting Stabilities [作者：GONTHIER JEROME F; WODRICH MATTHEW D; STEINMANN STEPHAN N; CORMINBOEUF CLEMENCE,期刊：Organic Letters, 页码：3070-3073 , 文章类型： Article，,卷期：2010年12-13] Bond separation reactions of highly branched alkanes are used to assess (de)stabilizing interactions associated with various 1,3-nonbonded substituent patterns. While n- and singly methylated alkanes show positive bond s... Coupling of a C-2-Chiral Ferrocene with Phenylalkynyl Groups: Novel Ferrocenophanes Carrying Multiple Chiral Ferrocenyl Units [作者：FUKINO TAKAHIRO; FUJITA NORIFUMI; AIDA TAKUZO,期刊：Organic Letters, 页码：3074-3077 , 文章类型： Article，,卷期：2010年12-13] Upon treatment with CuCl/TMEDA (1:1) at a high [CuCl]/[1] ratio, enantiopure C-2-chiral tetrasubstituted ferrocene 1 carrying phenylalkynyl groups is transformed into a novel family of chiral ferrocenophanes 2 and 3 with... Comparison of the Armed/Disarmed Building Blocks of the D-Gluco and D-Glucosamino Series in the Context of Chemoselective Oligosaccharide Synthesis [作者：KAMKHACHORN TEERADA; PARAMESWAR ARCHANA R; DEMCHENKO ALEXEI V,期刊：Organic Letters, 页码：3078-3081 , 文章类型： Article，,卷期：2010年12-13] A very elegant Fraser-Reid armed-disarmed approach recently expanded to the building blocks of the superarmed and superdisarmed series shows very high utility in chemoselective oligosaccharide synthesis. Although a numbe... Rh(I)-Catalyzed Carbonylative Carbocyclization of Tethered Ene- and Yne-cyclopropenes [作者：LI CHANGKUN; ZHANG HANG; FENG JIAJIE; ZHANG YAN; WANG JIANBO,期刊：Organic Letters, 页码：3082-3085 , 文章类型： Article，,卷期：2010年12-13] Rh(I)-catalyzed carbonylative carbocyclization of ene- and yne-cyclopropene systems provides cyclohexenones and phenols with high efficiency, respectively. Efficient Construction of a 3C-Xanthone-Linked 3C-Chromone Scaffold by Novel Double Michael Additions and Cyclizations [作者：XIE FUCHUN; CHEN HONG; HU YOUHONG,期刊：Organic Letters, 页码：3086-3089 , 文章类型： Article，,卷期：2010年12-13] A novel base-promoted cascade reaction of 2-methyl-3-(1-alkynyl)chromones to produce a 3C-xanthone-linked 3C-chromone scaffold has been developed. This tandem process involves multiple reactions such as Michael additions... Facile Double-Lithiation of a Transient Urea: Vicarious ortho-Metalation of Aniline Derivatives [作者：HOULDEN CHRIS E; LLOYDJONES GUY C; BOOKERMILBURN KEVIN I,期刊：Organic Letters, 页码：3090-3092 , 文章类型： Article，,卷期：2010年12-13] A convenient one-pot method for the conversion of phenylisocyanate into ortho-functionalized aniline derivatives has been developed. The reaction proceeds via the selective ortho-metalation of a transient labile urea, wh... Concise Formal Synthesis of Porothramycins A and B via Zincke Pyridinium Ring-Opening/Ring-Closing Cascade [作者：MICHELS THEO D; KIER MATTHEW J; KEARNEY AARON M; VANDERWAL CHRISTOPHER D,期刊：Organic Letters, 页码：3093-3095 , 文章类型： Article，,卷期：2010年12-13] Short formal syntheses of the antitumor antibiotics porothramycins A and B from a commercially available ester of the unnatural amino acid 3-(3-pyridyl)alanine are presented. A rearrangement cascade that presumably invol...