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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71条记录   alpha-Arylation of 3-Aryloxindoles [作者：MAI CHENGKANG; SAMMONS MATTHEW F; SAMMAKIA TAREK,期刊：Organic Letters, 页码：2306-2309 , 文章类型： Article，,卷期：2010年12-10] A versatile method for the synthesis of 3,3-diaryloxindoies via Pd-catalyzed alpha-arylations or an SNAr reaction is described. The reaction proceeds using mild base, is tolerant of a variety of functional groups, and is... Silver-Promoted Desilylation Catalyzed by Ortho- and Allosteric Cucurbiturils [作者：LU XIAOYONG; MASSON ERIC,期刊：Organic Letters, 页码：2310-2313 , 文章类型： Article，,卷期：2010年12-10] Cucurbit[6]-, [7]-, and [8]uril can catalyze the silver(I)-promoted desilylation of trimethylsilylalkynyl-containing pseudorotaxanes by stabilizing a key pi-alkynyl silver intermediate through favorable interactions betw... General Method for Synthesis of 2-Heterocyclic N-Methyliminodiacetic Acid Boronates [作者：DICK GRAHAM R; KNAPP DAVID M; GILLIS ERIC P; BURKE MARTIN D,期刊：Organic Letters, 页码：2314-2317 , 文章类型： Article，,卷期：2010年12-10] A wide range of 2-pyridyl and other difficult-to-access heterocyclic N-methyliminodiacetic acid boronates can be readily prepared from the corresponding bromides via, a new method involving direct transligation of 2-hete... Cell-Trappable Fluorescent Probes for Nitric Oxide Visualization in Living Cells [作者：PLUTH MICHAEL D; MCQUADE LINDSEY E; LIPPARD STEPHEN J,期刊：Organic Letters, 页码：2318-2321 , 文章类型： Article，,卷期：2010年12-10] Two new cell-trappable fluorescent probes for nitric oxide (NO) are reported based on either incorporation of hydrolyzable esters or conjugation to aminodextran polymers. Both probes are highly selective for NO over othe... Pd-Catalyzed Carboamination of Oxazolidin-2-ones: A Stereoselective Route to trans-2,5-Disubstituted Pyrrolidines [作者：LEMEN GEORGIA S; WOLFE JOHN P,期刊：Organic Letters, 页码：2322-2325 , 文章类型： Article，,卷期：2010年12-10] Palladium-catalyzed carboamination reactions between aryl bromides and 4-(but-3-enyl)-substituted oxazolidin-2-ones are described. These transformations afford bicyclic oxazolidin-2-one derivatives that can be converted ... Organochalcogen Substituents in Phenolic Antioxidants [作者：AMORATI RICCARDO; PEDULLI GIAN FRANCO; VALGIMIGLI LUCA; JOHANSSON HENRIK; ENGMAN LARS,期刊：Organic Letters, 页码：2326-2329 , 文章类型： Article，,卷期：2010年12-10] Little is known about the ED/EW character of organochalcogen substituents and their contribution to the O-H bond dissociation enthalpy (BDE) in phenolic compounds. A series of ortho- and para-(S,Se,Te)R-substituted pheno... Direct Acylation of Carrier Proteins with Functionalized beta-Lactones [作者：AMOROSO JON W; BORKETEY LAWRENCE S; PRASAD GITANJELI; SCHNARR NATHAN A,期刊：Organic Letters, 页码：2330-2333 , 文章类型： Article，,卷期：2010年12-10] As the key component of many biosynthetic assemblies, acyl-carrier proteins offer a robust entry point for introduction of small molecule probes and pathway intermediates. Current labeling strategies primarily rely on mo... Metal-Free Coupling of Azoles with 2-and 3-Haloindoles Providing Access to Novel 2-or 3-(Azol-1-yl)indole Derivatives [作者：POIRIER MARTIN; GOUDREAU SEBASTIEN; POULIN JASON; SAVOIE JOLAINE; BEAULIEU PIERRE L,期刊：Organic Letters, 页码：2334-2337 , 文章类型： Article，,卷期：2010年12-10] Thermal or microwave-mediated heating of 2- or 3-haloindoles with azoles (pK(a) < 8) provides a straightforward, metal-free, and environmentally friendly access to novel 2-(azol-1-yl)indoles. Furthermore, previously unkn... Facile Synthesis of Polysubstituted Oxazoles via A Copper-Catalyzed Tandem Oxidative Cyclization [作者：WAN CHANGFENG; ZHANG JINTANG; WANG SUJING; FAN JINMIN; WANG ZHIYONG,期刊：Organic Letters, 页码：2338-2341 , 文章类型： Article，,卷期：2010年12-10] A highly efficient synthesis of polysubstituted oxazoles was developed via a copper-catalyzed tandem oxidative cyclization. The desired products can be obtained from readily available starting materials under mild condit... Enantioselective Synthesis of alpha-Methylene-beta-hydroxy Carboxylic Acid Derivatives via a Diastereoselective Aldol/beta-Elimination Sequence: Application to the C(15)-C(21) Fragment of Tedanolide C [作者：BARTH ROLAND; ROUSH WILLIAM R,期刊：Organic Letters, 页码：2342-2345 , 文章类型： Article，,卷期：2010年12-10] An enantioselective synthesis of alpha-methylene-beta-hydroxy carboxylic acid derivatives via a highly diastereoselective, one-pot syn-aldol and beta-elimination sequence utilizing the chiral beta-(phenylselenyl)propiony... Nanochannel Array within a Multilayered Network of a Planarized Dehydro[24]annulene [作者：SUZUKI MITSUHARU; COMITO ANGELO; KHAN SAEED I; RUBIN YVES,期刊：Organic Letters, 页码：2346-2349 , 文章类型： Article，,卷期：2010年12-10] Dehydro[24]annulene 1c adopts an unusual planarized conformation in the crystal. A multilayered stack of hydrogen-bonded grids delineates tightly packed nanotubular channels. The related macrocycles 1a and 1b, on the oth... Pd-Catalyzed Cross-Coupling Reactions of Amides and Aryl Mesylates [作者：DOOLEWEERDT KARIN; FORS BRETT P; BUCHWALD STEPHEN L,期刊：Organic Letters, 页码：2350-2353 , 文章类型： Article，,卷期：2010年12-10] A catalyst, based on a biarylphosphine ligand, for the Pd-catalyzed cross-coupling reactions of amides and aryl mesylates is described. This system allows an array of aryl and heteroaryl mesylates to be transformed into ... Bi-linderone, a Highly Modified Methyl-linderone Dimer from Lindera aggregata with Activity toward Improvement of Insulin Sensitivity in Vitro [作者：WANG FEI; GAO YUAN; ZHANG LING; LIU JIKAI,期刊：Organic Letters, 页码：2354-2357 , 文章类型： Article，,卷期：2010年12-10] Bi-linderone (1) was isolated as racemate from the traditional Chinese medicinal plant Lindera aggregata. The structure elucidation of bi-linderone was reported on the basis of extensive analysis of NMR spectra and cryst... Nickel- and Copper-Catalyzed Direct Alkynylation of Azoles and Polyfluoroarenes with Terminal Alkynes under O-2 or Atmospheric Conditions [作者：MATSUYAMA NAOTO; KITAHARA MASANORI; HIRANO KOJI; SATOH TETSUYA; MIURA MASAHIRO,期刊：Organic Letters, 页码：2358-2361 , 文章类型： Article，,卷期：2010年12-10] The direct C-H alkynylation of azoles with terminal alkynes proceeds efficiently under a nickel/O-2 catalytic system. On the other hand, a copper/air catalyst enables the coupling of polyfluoroarenes with terminal alkyne... Observation of Chiral Aggregate Growth of Perylene Derivative in Opaque Solution by Circularly Polarized Luminescence [作者：TSUMATORI HIROYUKI; NAKASHIMA TAKUYA; KAWAI TSUYOSHI,期刊：Organic Letters, 页码：2362-2365 , 文章类型： Article，,卷期：2010年12-10] The concentration-dependent enhancement of the luminescence dissymmetry factor has suggested that pi-conjugated chiral perylene derivatives in a high concentrated opaque solution grow to aggregated structures with higher... 2H-Azirines from a Concerted Addition of Alkylcarbenes to Nitrile Groups [作者：KNOLL WOLFGANG; MIEUSSET JEANLUC; ARION VLADIMIR B; BRECKER LOTHAR; BRINKER UDO H,期刊：Organic Letters, 页码：2366-2369 , 文章类型： Article，,卷期：2010年12-10] Photolysis of aziadamantanos in the presence of fumoronitrile (FN) unexpectedly afforded conjugated 2H-azirines resulting from addition of the carbene to the CN triple bond. This represents the first example of a direct ...