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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75条记录   A Stable Heptacene Derivative Substituted With Electron-Deficient Trifluoromethylphenyl and Triisopropylsilylethynyl Groups [作者：QU HEMI; CHI CHUNYAN,期刊：Organic Letters, 页码：3360-3363 , 文章类型： Article，,卷期：2010年12-15] A heptacene derivative 1 substituted with four electron-deficient trifluoromethylphenyl and two triisopropylsilylethynyl (TIPSE) groups was prepared by a new synthetic strategy. Photo-oxidative resistance studies showed ... Unusual Solid-State Luminescent Push-Pull Indolones: A General One-Pot Three-component Approach [作者：DSOUZA DANIEL M; MUSCHELKNAUTZ CHRISTIAN; ROMINGER FRANK; MUELLER THOMAS J J,期刊：Organic Letters, 页码：3364-3367 , 文章类型： Article，,卷期：2010年12-15] In a consecutive three-component cyclocarbopalladation, Sonogashira coupling, Michael addition sequence 4-aminopropenylidene indolones, i.e., terminally fixed push-pull chromophores, are obtained in yields as high as 99%... New Synthesis of 1-Substituted-1H-indazoles via 1,3-Dipolar Cycloaddition of in situ Generated Nitrile Imines and Benzyne [作者：SPITERI CHRISTIAN; KEELING STEVE; MOSES JOHN E,期刊：Organic Letters, 页码：3368-3371 , 文章类型： Article，,卷期：2010年12-15] A new synthesis of 1-substitued-1H-indazoles via 1,3-dipolar cycloaddition of nitrile imines to benzyne is described. The reaction is completed within 5 min, affording the corresponding N(1) C(3) disubstituted indazoles ... Ferrocene and Maleimide-Functionalized Disulfide Scaffolds for Self-Assembled Monolayers on Gold [作者：BERTIN PAUL A; AHRENS MICHAEL J; BHAVSAR KINJAL; GEORGANOPOULOU DIMITRA; WUNDER MARKUS; BLACKBURN GARY F; MEADE THOMAS J,期刊：Organic Letters, 页码：3372-3375 , 文章类型： Article，,卷期：2010年12-15] A series of ferrocene-based electroactive molecules (EAMs) containing maleimide and disulfide groups in different asymmetric and branched architectures were designed and synthesized. Stable monolayers of each EAM on gold... Direct Carbon-Carbon Bond Formation via Soft Enolization: A Biomimetic Asymmetric Mannich Reaction of Phenylacetate Thioesters [作者：KOHLER MARK C; YOST JULIANNE M; GARNSEY MICHELLE R; COLTART DON M,期刊：Organic Letters, 页码：3376-3379 , 文章类型： Article，,卷期：2010年12-15] An asymmetric Mannich reaction of phenylacetate thioesters and sulfonylimines using cinchona alkaloid-based amino (thio)urea catalysts is reported that employs proximity-assisted soft enolization. This approach to enoliz... Asymmetric Hydrogenation of Bicyclic Ketones Catalyzed by BINAP/IPHAN-Ru(II) Complex [作者：ARAI NORIYOSHI; AKASHI MASAYA; SUGIZAKI SATOSHI; OOKA HIROHITO; INOUE TSUTOMU; OHKUMA TAKESHI,期刊：Organic Letters, 页码：3380-3383 , 文章类型： Article，,卷期：2010年12-15] Hydrogenation of 3-quinuclidinone and bicyclo[2.2.2]octan-2-one with a combined catalyst system of RuCl2[(S)-binap][(R)-iphan] and t-C4H9OK in 2-propanol afforded the chiral alcohols in 97-98% ee. 2-Diphenylmethyl-3-quin... From Furans to Phosphinines [作者：MAO YANLI; MATHEY FRANCOIS,期刊：Organic Letters, 页码：3384-3385 , 文章类型： Article，,卷期：2010年12-15] The reaction between methylenechlorophosphine-pentacarbonyltungsten and furan affords a [4 + 2] adduct whose oxygen bridge Is broken by BBr3, leading to a 2-alkoxyphosphinine after two additional steps. Synthesis, Characterization, and Binding Property of Isoelectronic Analogues of Nucleobases, B(6)-Substituted 5-Aza-6-borauracils and -thymines [作者：ITO HIROSHI; YUMURA KYOHEI; SAIGO KAZUHIKO,期刊：Organic Letters, 页码：3386-3389 , 文章类型： Article，,卷期：2010年12-15] As isoelectronic BN-containing analogues of 6-substituted uracil and thymine, a series of B(6)-substituted 5-aza-6-borauracils (U(BN)s) and -thymines (T(BN)s) were synthesized and fully characterized. The crystallographi... Regioselective Carboindation of Simple Alkenes with Indium Tribromide and Ketene Silyl Acetals [作者：NISHIMOTO YOSHIHIRO; UEDA HIROKI; INAMOTO YOSHIHIRO; YASUDA MAKOTO; BABA AKIO,期刊：Organic Letters, 页码：3390-3393 , 文章类型： Article，,卷期：2010年12-15] The regioselective carboindation of simple alkenes with indium tribromide and ketene silyl acetals was accomplished. Various alkenes such as ethylene, 1-alkenes, and cyclic alkenes were applicable for this reaction syste... Total Synthesis and Assignment of the Side Chain Stereochemistry of LI-F04a: An Antimicrobial Cyclic Depsipeptide [作者：COCHRANE JAMES R; MCERLEAN CHRISTOPHER S P; JOLLIFFE KATRINA A,期刊：Organic Letters, 页码：3394-3397 , 文章类型： Article，,卷期：2010年12-15] The total synthesis of the potent antifungal and antibiotic cyclic depsipeptide LI-F04a and its side chain epimer was accomplished using macrolactonization to assemble the cyclic peptide core, followed by attachment of t... Strained to the Limit: When a Cyclobutyl Moiety Becomes a Thermodynamic Sink in a Protolytic Ring-Opening of Photogenerated Oxetanes [作者：VALIULIN ROMAN A; ARISCO TERESA M; KUTATELADZE ANDREI G,期刊：Organic Letters, 页码：3398-3401 , 文章类型： Article，,卷期：2010年12-15] Strained polycyclic oxetanes generated photochemically from the Diels-Alder adducts of cyclic dienes and enones undergo deep skeletal rearrangements under protolytic ring-opening conditions offering expeditious access to... Alchivemycin A, a Bioactive Polycyclic Polyketide with an Unprecedented Skeleton from Streptomyces sp. [作者：IGARASHI YASUHIRO; KIM YOUNGJU; IN YASUKO; ISHIDA TOSHIMASA; KAN YUKIKO; FUJITA TSUYOSHI; IWASHITA TAKASHI; TABATA HIROKAZU; ONAKA HIROYASU; FURUMAI TAMOTSU,期刊：Organic Letters, 页码：3402-3405 , 文章类型： Article，,卷期：2010年12-15] Alchivemycin A, a novel polycyclic polyketide, was isolated from the culture extract of a plant-derived actinomycete Streptomyces sp. The structure and relative configuration were elucidated by spectroscopic analysis and... Specific Recognition and Sensing of CN- in Sodium Cyanide Solution [作者：SAHA SUKDEB; GHOSH AMRITA; MAHATO PRASENJIT; MISHRA SANDHYA; MISHRA SANJIV K; SURESH E; DAS SATYABRATA; DAS AMITAVA,期刊：Organic Letters, 页码：3406-3409 , 文章类型： Article，,卷期：2010年12-15] Specific recognition of CN- in sodium cyanide solution was achieved using two imidazole-based receptors (A and B). Visually detectable color changes were associated with the formation of hydrogen bonded adducts, A center... Synthesis of Substituted Chromanones: An Organocatalytic Aldol/oxa-Michael Reaction [作者：BUTLER JEFFREY D; CONRAD WAYNE E; LODEWYK MICHAEL W; FETTINGER JAMES C; TANTILLO DEAN J; KURTH MARK J,期刊：Organic Letters, 页码：3410-3413 , 文章类型： Article，,卷期：2010年12-15] A diastereoselective organocatalytic aldol/oxa-Michael reaction has been developed to efficiently deliver medicinally relevant 2,3-ring-substituted chromanones. Development of this synthetic strategy revealed an unexpect... Facile Benzo-Ring Construction via Palladium-Catalyzed Functionalization of Unactivated sp(3) C-H Bonds under Mild Reaction Conditions [作者：FENG YIQING; WANG YUJI; LANDGRAF BRADLEY; LIU SHI; CHEN GONG,期刊：Organic Letters, 页码：3414-3417 , 文章类型： Article，,卷期：2010年12-15] A practical synthetic method for the annulation of benzo-rings by the intramolecular coupling of an aryl Iodide and a methylene C H bond is described. The palladium-catalyzed C-H functionalization Is directed by an amino... Synthesis of the Guaianolide Ring System via Cycloaddition of a Bicyclic Carbonyl Ylide with Allyl Propiolate [作者：NAVICKAS VAIDOTAS; USHAKOV DMITRY B; MAIER MARTIN E; STROEBELE MARKUS; MEYER H JUERGEN,期刊：Organic Letters, 页码：3418-3421 , 文章类型： Article，,卷期：2010年12-15] A cyclic carbonyl ylide with a trans-annulated cyclopentane ring was generated by a Rh-2(OAc)(4)-catalyzed reaction from a diazoketone precursor and trapped with allyl propiolate. The 1,3-dipolar cycloaddition led to the...