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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   Self-Assembled Mono layers of Subphthalocyanines on Gold Substrates [作者：GONZALEZRODRIGUEZ DAVID; VICTORIA MARTINEZDIAZ M; ABEL JULIA; PERL ANDRAS; HUSKENS JURRIAAN; ECHEGOYEN LUIS; TORRES TOMAS,期刊：Organic Letters, 页码：2970-2973 , 文章类型： Article，,卷期：2010年12-13] A series of dithiolane-susbstituted subphthalocyanines have been synthesized that can form self-assembled monolayers on gold surfaces, as confirmed by diverse characterization techniques. Synthesis of Immunostimulatory alpha-C-Galactosylceramide Glycolipids via Sonogashira Coupling, Asymmetric Epoxidation, and Trichloroacetimidate-Mediated Epoxide Opening [作者：LIU ZHENG; BYUN HOESUP; BITTMAN ROBERT,期刊：Organic Letters, 页码：2974-2977 , 文章类型： Article，,卷期：2010年12-13] Stereocontrolled syntheses of alpha-C-GalCer (2) and its alpha-C-acetylenic analogue 6 were accomplished in high efficiency by a convergent construction strategy from 1-hexadecene and D-galactose. The key transformations... Synthesis of Multicyclic Pyridine and Quinoline Derivatives via Intramolecular C-H Bond Functionalization [作者：YOTPHAN SIRILATA; BERGMAN ROBERT G; ELLMAN JONATHAN A,期刊：Organic Letters, 页码：2978-2981 , 文章类型： Article，,卷期：2010年12-13] An efficient method is reported for the preparation of multicyclic pyridines and quinolines by a rhodium-catalyzed intramolecular C H bond functionalization process. The method shows good scope for branched and unbranche... Electrophilic Aromatic Selenylation: New OPRT Inhibitors [作者：ABDO MOHANNAD; ZHANG YONG; SCHRAMM VERN L; KNAPP SPENCER,期刊：Organic Letters, 页码：2982-2985 , 文章类型： Article，,卷期：2010年12-13] 2-Ethoxyethaneseleninic acid reacts with electron-rich aromatic substrates to deliver, by way of the selenoxides, the (2-ethoxyethyl)seleno ethers, which can in turn be transformed into a diverse set of aryl-selenylated ... Synthesis of SL0101 Carbasugar Analogues: Carbasugars via Pd-Catalyzed Cyclitolization and Post-Cyclitolization Transformations [作者：SHAN MINGDE; ODOHERTY GEORGE A,期刊：Organic Letters, 页码：2986-2989 , 文章类型： Article，,卷期：2010年12-13] A general approach to the stereoselective synthesis of 5a-carbasugars has been developed. The route mimics our palladium-catalyzed glycosylation/postglycosylation approach to carbohydrates in that it also utilizes a high... Design, Synthesis, and Structural Analysis of D,L-Mixed Polypyrrolinones. 1. From Nonpeptide Peptidomimetics to Nanotubes [作者：SMITH AMOS B III; WANG WENYONG; CHARNLEY ADAM K; CARROLL PATRICK J; KENESKY CRAIG S; HIRSCHMANN RALPH,期刊：Organic Letters, 页码：2990-2993 , 文章类型： Article，,卷期：2010年12-13] To expand the potential conformational space available to the polypyrroline structural motif, an open chain, D,L-alternating hexapyrrolinone was designed and synthesized. Structural studies, including solution NMR and X-... Design, Synthesis, and Structural Analysis of D,L-Mixed Polypyrrolinones. 2. Macrocyclic Hexapyrrolinones [作者：SMITH AMOS B III; XIONG HUI; CHARNLEY ADAM K; BRENNER MEINRAD; MESAROS EUGEN F; KENESKY CRAIG S; DI COSTANZO LUIGI; CHRISTIANSON DAVID W; HIRSCHMANN RALPH,期刊：Organic Letters, 页码：2994-2997 , 文章类型： Article，,卷期：2010年12-13] The design, synthesis, and structural analysis of two macrocyclic D,L-alternating hexapyrrolinones have been achieved. These cyclic peptide mimics adopt a flat, hexagonal conformation, stabilized by intramolecular hydrog... Estimated Rate Constants for Hydrogen Abstraction from N-Heterocyclic Carbene-Borane Complexes by an Alkyl Radical [作者：SOLOVYEV ANDREY; UENG SHAUHUA; MONOT JULIEN; FENSTERBANK LOUIS; MALACRIA MAX; LACOTE EMMANUEL; CURRAN DENNIS P,期刊：Organic Letters, 页码：2998-3001 , 文章类型： Article，,卷期：2010年12-13] Rate constants for hydrogen abstraction by a nonyl radical from 20 complexes of N-heterocyclic carbenes and boranes (NHC-boranes) have been determined by the pyridine-2-thioneoxycarbonyl (PTOC) competition kinetic method... Radical Deoxygenation of Xanthates and Related Functional Groups with New Minimalist N-Heterocyclic Carbene Boranes [作者：UENG SHAUHUA; FENSTERBANK LOUIS; LACOTE EMMANUEL; MALACRIA MAX; CURRAN DENNIS P,期刊：Organic Letters, 页码：3002-3005 , 文章类型： Article，,卷期：2010年12-13] Minimalist N-heterocyclic carbene boranes 1,3-dimethylimidazol-2-ylideneborane and 2,4-dimethyl-1,2,4-triazol-3-ylideneborane are readily available and have low molecular weights. They exhibit superior performance to fir... Unlikeliness of Pd-Free Gold(I)-Catalyzed Sonogashira Coupling Reactions [作者：LAUTERBACH THORSTEN; LIVENDAHL MADELEINE; ROSELLON ANTONIO; ESPINET PABLO; ECHAVARREN ANTONIO M,期刊：Organic Letters, 页码：3006-3009 , 文章类型： Article，,卷期：2010年12-13] The Sonogashira coupling reaction is not catalyzed by Aul/dppe in the absence of Pd complexes. However, addition of 0.1 mol % of Pd(0) led to efficient cross-coupling reactions. The most plausible catalytic cycles for th... A Synthesis of the Carbocyclic Core of Maoecrystal V [作者：LAZARSKI KIEL E; HU DENNIS X; STERN CHARLOTTE L; THOMSON REGAN J,期刊：Organic Letters, 页码：3010-3013 , 文章类型： Article，,卷期：2010年12-13] An approach toward the synthesis of the complex polycyclic diterpene maoecrystal V (1) is described. Construction of the advanced tetracyclic core structure (i.e., 19) was achieved in 13 steps from 3,3-dimethylcyclohexan... Diastereoselective Intramolecular Additions of Allyl- and Propargylsilanes to Iminium Ions: Synthesis of Cyclic and Bicyclic Quaternary Amino Acids [作者：FUSTERO SANTOS; MATEU NATALIA; SIMONFUENTES ANTONIO; LUIS ACENA JOSE,期刊：Organic Letters, 页码：3014-3017 , 文章类型： Article，,卷期：2010年12-13] Chiral imino lactones derived from (R)-phenylglycinol containing an allyl- or propargyltrimethylsilyl group in the side chain readily cyclized in the presence of acidic reagents to afford spirocyclic compounds with high ... Total Synthesis and Stereochemical Reassignment of Bisebromoamide [作者：GAO XUGUANG; LIU YUQING; KWONG SHUQIN; XU ZHENGSHUANG; YE TAO,期刊：Organic Letters, 页码：3018-3021 , 文章类型： Article，,卷期：2010年12-13] A revised configurational assignment for the thiazoline moiety of the marine peptide bisebromoamide is proposed and validated by total synthesis. Impact on Hydrogenation Catalytic Cycle of the R Groups' Cyclic Feature in "R-SMS-Phos" [作者：ZUPANCIC BORUT; MOHAR BARBARA; STEPHAN MICHEL,期刊：Organic Letters, 页码：3022-3025 , 文章类型： Article，,卷期：2010年12-13] A series of R-SMS-Phos ligands was evaluated in the Rh(I)-catalyzed hydrogenation of a set of olefins showing a marked influence of the cyclic nature and structure of the R groups. Overall, cPen- and Cy-SMS-Phos performe... Diastereoselective Syntheses of Functionalized Five-Membered Carbocycles and Heterocycles by a SmI2-Promoted Intramolecular Coupling of Bromoalkynes and alpha,beta-Unsaturated Esters [作者：TAKAHASHI KAZUNORI; HONDA TOSHIO,期刊：Organic Letters, 页码：3026-3029 , 文章类型： Article，,卷期：2010年12-13] An intramolecular coupling of bromoalkynes with alpha,beta-unsaturated esters afforded functionalized five-membered carbocycles and heterocycles with high diastereoselectivities in excellent yields. The vinyl bromides ne... gamma-Hydroxynitrile Alkylations: Electrophile-Dependent Stereoselectivity [作者：MYCKA ROBERT J; STEWARD OMAR W; FLEMING FRASER F,期刊：Organic Letters, 页码：3030-3033 , 文章类型： Article，,卷期：2010年12-13] Quaternary centers are efficiently installed in chelation-controlled alkylations of acyclic hydroxynitriles. Intriguingly, the stereoselectivity is determined by the nature of the electrophile and the structure of the Gr...