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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33条记录   No Detours: Palladium-Catalyzed Oxidative C-H/C-H Cross-Couplings of Heteroarenes [作者：HAN WEI; OFIAL ARMIN R,期刊：SYNLETT, 页码：1951-1955 , 文章类型： Article，,卷期：2011年-14] Recent developments in the field of intermolecular cross-couplings between heteroarenes through dual C-H bond cleavage under oxidative conditions are reviewed. The use of palladium catalysts allows for regioselective car... The Origins of Nucleotides [作者：POWNER MATTHEW W; SUTHERLAND JOHN D; SZOSTAK JACK W,期刊：SYNLETT, 页码：1956-1964 , 文章类型： Article，,卷期：2011年-14] The origins of life represent one of the most fundamental chemical questions being addressed by modern science. One of the longstanding mysteries of this field is what series of chemical reactions could lead to the molec... Mannich-Type Reactions of Nitrones, Oximes, and Hydrazones [作者：MERINO PEDRO; TEJERO TOMAS,期刊：SYNLETT, 页码：1965-1977 , 文章类型： Article，,卷期：2011年-14] Mannich-type reactions with nitrones, oximes, and hydrazones provide efficient approaches to beta-amino carbonyl derivatives with nitrogen functionality existing in an intermediate oxidation state, as in the cases of hyd... Petasis Olefination in a Continuous-Flow Microwave Reactor: exo-Glycals from Sugar Lactones [作者：KOCH STEFAN; LOEWE HOLGER; KUNZ HORST,期刊：SYNLETT, 页码：1978-1982 , 文章类型： Article，,卷期：2011年-14] An efficient Petasis olefination of sugar lactones under continuous-flow microwave conditions was developed. Their conversion into exo-glycals can be steered by adjusting the residence time and the concentration of the s... N,N-Dihydrotetraazaheptacene: A Synthetic Strategy towards Larger Acenes with Ambient Stability [作者：APPLETON ANTHONY L; BARLOW STEPHEN; MARDER SETH R; HARDCASTLE KENNETH I; BUNZ UWE H F,期刊：SYNLETT, 页码：1983-1986 , 文章类型： Article，,卷期：2011年-14] We report the synthesis of the first N, N-dihydrotetraazaheptacene, which is solution-processible and stable as a solid under ambient conditions for over three years. Stereoselective Nickel-Catalyzed [2+2+2] Cycloaddition of Enynes and Arynes [作者：CANDITO DAVID A; LAUTENS MARK,期刊：SYNLETT, 页码：1987-1992 , 文章类型： Article，,卷期：2011年-14] Examples of stereoselective reactions of aryne intermediates are rare in the literature. A stereoselective nickel-catalyzed [2+2+2] cycloaddition of 1,6-enynes with aryne intermediates is reported. Excellent stereoselect... N-Boc-O-Tosyl Hydroxylamine as a Safe and Efficient Nitrogen Source for the N-Amination of Aryl and Alkyl Amines: Electrophylic Amination [作者：BABURAJ THANKAPPAN; THAMBIDURAI SIVALINGAM,期刊：SYNLETT, 页码：1993-1996 , 文章类型： Article，,卷期：2011年-14] beta-Boc-protected aryl and alkyl hydrazines, useful intermediates for azapeptides and N-substituted pyrazoles, were synthesized by electrophylic amination methodology, using less energetic N-Boc-O-tosyl hydroxylamine as... A Domino Microwave-Assisted Protocol for the Synthesis of 2,6-Disubstituted Pyrimidinones [作者：RADI MARCO; CASALUCE GIANNI; BOTTA MAURIZIO,期刊：SYNLETT, 页码：1997-2000 , 文章类型： Article，,卷期：2011年-14] A practical microwave-assisted protocol for the synthesis of 2,6-disubstituted pyrimidinones has been developed. This approach is based on a domino Michael addition-cyclocondensation reaction between substituted thiourea... A One-Pot Rearrangement of 2-(N-Alkyl-N-aryl)aminochromone-3-carbaldehyde to N-Alkyl-3-salicyloyl-2-quinolone - An Antileishmanial Agent [作者：MAITI SOURAV; MALLICK SUVADIP; PANJA SUMAN KALYAN; PAL CHIRANJIB; BANDYOPADHYAY CHANDRAKANTA,期刊：SYNLETT, 页码：2001-2004 , 文章类型： Article，,卷期：2011年-14] 2-(N-Aryl) aminochromone-3-carbaldehyde does not show any change on heating in acetic acid, but under the same reaction conditions 2-(N-alkyl-N-aryl) aminochromone-3-carbaldehyde rearranges to 3-salicyloyl-2-quinolones, ... A Novel Short-Step Synthesis of New Xanthenedione Derivatives from the Cyclization of 3-Cinnamoyl-2-styrylchromones [作者：PINTO DIANA C G A; SECA ANA M L; LEAL STEPHANIE B; SILVA ARTUR M S; CAVALEIRO JOSE A S,期刊：SYNLETT, 页码：2005-2008 , 文章类型： Article，,卷期：2011年-14] Novel (E)-3-aryl-4-benzylidene-8-hydroxy-3,4-dihydro1-H-xanthene-1,9(2H)-dione s are prepared by the cyclization of (E, E)-3-cinnamoyl-5-hydroxy-2-styrylchromones efficiently catalyzed with boron tribromide. The (E, E)-3... Elaboration of Peptidomimetics Derived from a PADAM Approach: Synthesis of Polyfunctionalised 2(1H)-Pyrazinones via an Unexpected Aromatisation [作者：BASSO ANDREA; BANFI LUCA; GUANTI GIUSEPPE; RIVA RENATA; TOSATTI PAOLO,期刊：SYNLETT, 页码：2009-2012 , 文章类型： Article，,卷期：2011年-14] When the PADAM (Passerini reaction-amine deprotection-acyl migration) strategy is applied to N-Boc amino acids, the resulting beta-acylamino-alpha-hydroxyamides can be elaborated by secondary-alcohol oxidation, Boc depro... Benzotriazole Reagents for the Syntheses of Fmoc-, Boc-, and Alloc-Protected Amino Acids [作者：IBRAHIM TAREK S; TALA SRINIVASA R; ELFEKY SAID A; ABDELSAMII ZAKARIA K; KATRITZKY ALAN R,期刊：SYNLETT, 页码：2013-2016 , 文章类型： Article，,卷期：2011年-14] Stable Fmoc-, Boc-, and Alloc-benzotriazoles react with various amino acids including unprotected serine and glutamic acid, in the presence of triethylamine at 20 degrees C as reagents to introduce alpha-amino protecting... Unmodified Nano-Powder Magnetite or Iron(III) Oxide Catalyze the Easy and Fast Synthesis of 4-Substituted-4H-Pyrans [作者：CANO RAFAEL; RAMON DIEGO J; YUS MIGUEL,期刊：SYNLETT, 页码：2017-2020 , 文章类型： Article，,卷期：2011年-14] Inexpensive and commercially available nano-power magnetite or iron(III) oxide can be used as catalyst in a new, straightforward, and fast protocol for the construction of 4-substituted-4H-pyrans. The reaction implies a ... Highly Selective Catalytic Synthesis of (E,E)-1,4-Diiodobuta-1,3-diene via Atom-Efficient Addition of Acetylene and Iodine: A Versatile (E,E)-1,3-Diene Building Block in Cross-Coupling Reactions [作者：ANANIKOV VALENTINE P; KASHIN ALEXEY S; HAZIPOV OLEG V; BELETSKAYA IRINA P; STARIKOVA ZOYA A,期刊：SYNLETT, 页码：2021-2024 , 文章类型： Article，,卷期：2011年-14] The first practical procedure is reported for the synthesis of (E,E)-1,4-diiodobuta-1,3-diene from very simple starting materials (acetylene and I(2)). A pure crystalline product was obtained in a green chemical procedur... Simple and Efficient One-Step Conversion of Benzonitrile into Methylarene under Mild Conditions [作者：OUELLET ETIENNE; POIRIER DONALD,期刊：SYNLETT, 页码：2025-2028 , 文章类型： Article，,卷期：2011年-14] A very simple and efficient method has been developed for the synthesis of various methylarenes from the corresponding benzonitriles under mild conditions. The protocol uses Pearlman's catalyst to achieve the transformat... An Oxidant-Free Single-Step Synthesis of Tetra- or Disubstituted Symmetrical Pyridine Derivatives by a Hf(OTf)(4)-Catalyzed Annulation [作者：SASADA TOSHIAKI; KOBAYASHI FUMINORI; MORIUCHI MASATO; SAKAI NORIO; KONAKAHARA TAKEO,期刊：SYNLETT, 页码：2029-2034 , 文章类型： Article，,卷期：2011年-14] The Hf(OTf)(4)-catalyzed unprecedented annulation of an enamine with triethyl orthoformate leading to the preparation of tetrasubstituted symmetrical pyridine derivatives without an oxidant is described. This method acco...