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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72条记录   Exclusive Photodimerization Reactions of Chromone-2-carboxylic Esters Depending on Reaction Media [作者：SAKAMOTO MASAMI; YAGISHITA FUMITOSHI; KANEHIRO MASAYUKI; KASASHIMA YOSHIO; MINO TAKASHI; FUJITA TSUTOMU,期刊：Organic Letters, 页码：4435-4437 , 文章类型： Article，,卷期：2010年12-20] The irradiation of chromone-2-carboxylic esters resulted in the stereo- and regioselective formation of C-2 chiral anti-HR dimers from the triplet excited state. On the contrary, photolysis in the solid-state gave anti-H... Palladium-Catalyzed Amination of Unprotected Halo-7-azaindoles [作者：HENDERSON JACLYN L; MCDERMOTT SARAH M; BUCHWALD STEPHEN L,期刊：Organic Letters, 页码：4438-4441 , 文章类型： Article，,卷期：2010年12-20] Simple and efficient procedures for the Pd-catalyzed cross-coupling of primary and secondary amines with halo-7-azaindoles(pyrrolo[2,3-b]pyridine) are presented. Previously, no general method was available to ensure the ... Efficient Pd-Catalyzed Amination Reactions for Heterocycle Functionalization [作者：HENDERSON JACLYN L; BUCHWALD STEPHEN L,期刊：Organic Letters, 页码：4442-4445 , 文章类型： Article，,卷期：2010年12-20] The Pd-catalyzed amination of unprotected benzo-fused heterocycles is reported, which allows for greater flexibility and efficiency in the modification of this important class of molecules. The generality of these simple... Stereocontrolled Synthesis of Contiguous C(sp(3))-C(aryl) Bonds by Lanthanide(III)-Catalyzed Domino Aryl-Claisen [3,3]-Sigmatropic Rearrangements [作者：RAMADHAR TIMOTHY R; KAWAKAMI JUNICHI; LOUGH ALAN J; BATEY ROBERT A,期刊：Organic Letters, 页码：4446-4449 , 文章类型： Article，,卷期：2010年12-20] A domino [3,3]-sigmatropic aryl-Claisen rearrangement of cyclic and acyclic bisaryloxy-substituted alkenes can be performed in high yield by using Ln(fod)(3) catalysis to obtain bisphenolic products incorporating two con... Enantioselective Total Synthesis of the Selective PI3 Kinase Inhibitor Liphagal [作者：ALVAREZMANZANEDA ENRIQUE; CHAHBOUN RACHID; ALVAREZ ESTEBAN; CANO M JOSE; HAIDOUR ALI; ALVAREZMANZANEDA RAMON,期刊：Organic Letters, 页码：4450-4453 , 文章类型： Article，,卷期：2010年12-20] The enantioselective total synthesis of liphagal, a selective inhibitor of PI3K alpha isolated from the marine sponge Aka coralliphaga, has been achieved. The novel tetracyclic "liphagane" skeleton is formed in one step,... Regio- and Enantioselective Iridium-Catalyzed Allylation of Thiophenol: Synthesis of Enantiopure Allyl Phenyl Sulfides [作者：ZHENG SHENGCAI; GAO NING; LIU WEI; LIU DONGGE; ZHAO XIAOMING; COHEN THEODORE,期刊：Organic Letters, 页码：4454-4457 , 文章类型： Article，,卷期：2010年12-20] A highly regio- and enantioselective allylic alkylation of sodium thiophenoxide has been realized by [Ir(COD)CI](2)/phosphoramidite along with CsF as an additive, producing highly enantioenriched allyl phenyl sulfide com... Azonazine, a Novel Dipeptide from a Hawaiian Marine Sediment-Derived Fungus, Aspergillus insulicola [作者：WU QUANXIANG; CREWS MITCHELL S; DRASKOVIC MARIJA; SOHN JOHANN; JOHNSON TYLER A; TENNEY KAREN; VALERIOTE FREDERICK A; YAO XIAOJUN; BJELDANES LEONARD F; CREWS PHILLIP,期刊：Organic Letters, 页码：4458-4461 , 文章类型： Article，,卷期：2010年12-20] Azonazine. a unique hexacyclic dipeptide, was isolated from a Hawaiian marine sediment-derived fungus eventually identified as Aspergillus insulicola. Its absolute configuration, 2R,10R,11S,19R, was established using NMR... Ruthenium-Catalyzed Tandem Ring-Opening/Ring-Closing/Cross-Metathesis of 1,6-Cyclopropene-ynes and Olefins for the Construction of the 3-Pyrroline Skeleton [作者：ZHU ZHIBIN; SHI MIN,期刊：Organic Letters, 页码：4462-4465 , 文章类型： Article，,卷期：2010年12-20] Catalyzed by the first-generation Grubbs' ruthenium complex, tandem intramolecular/intermolecular metathesis of 1,6-enynes bearing a cyclopropene ring took place smoothly to produce 3-pyrroline derivatives in satisfactor... Tricyclic 2 '-C-Modified Nucleosides as Potential Anti-HCV Therapeutics [作者：WAUCHOPE ORRETTE R; TOMNEY MATTHEW J; PEPPER JOSEPH L; KORBA BRENT E; SELEYRADTKE KATHERINE L,期刊：Organic Letters, 页码：4466-4469 , 文章类型： Article，,卷期：2010年12-20] Promising biological activity in a number of therapeutic areas has been reported for both tricyclic nucleosides and 2'-modified nucleosides. In particular, disubstitution at the C-2' position of nucleosides has resulted ... Small Band Gap Polymers Synthesized via a Modified Nitration of 4,7-Dibromo-2,1,3-benzothiadiazole [作者：WANG ERGANG; HOU LINTAO; WANG ZHONGQIANG; HELLSTROM STEFAN; MAMMO WENDIMAGEGN; ZHANG FENGLING; INGANAS OILE; ANDERSSON MATS R,期刊：Organic Letters, 页码：4470-4473 , 文章类型： Article，,卷期：2010年12-20] The nitration of 4,7-dibromo-2,1,3-benzothiadiazole was modified by using CF3SO3H and HNO3 as the nitrating agent, and the related yield was improved greatly. On the basis of this improvement, two new small band gap poly... Bis-exo-2-norbornylboron Triflate for Stereospecific Enolization of 3,3,3-Trifluoropropionates [作者：RAMACHANDRAN P VEERARAGHAVAN; PARTHASARATHY GOWNSANKAR; GAGARE PRAVIN D,期刊：Organic Letters, 页码：4474-4477 , 文章类型： Article，,卷期：2010年12-20] The first boron-mediated enolization-aldolization of 3.3,3-Influoropropionates has been reported The preparation and application of bis-exobicyclo[221]heptan-2-ylboron Inflate as a superior reagent for diastereospecific ... One-Pot Etherification of Purine Nucleosides and Pyrimidines [作者：KOKATLA HAN PRASAD; LAKSHMAN MAHESH K,期刊：Organic Letters, 页码：4478-4481 , 文章类型： Article，,卷期：2010年12-20] A one-pot synthesis of ethers derived from inosine, guanosine, 2'-deoxyguanosine, and pyrimidinones is described Exposure of the heterocycle to 1H-benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphate (... Palladium-Catalyzed Tandem Diperoxidation/C-H Activation Resulting in Diperoxy-oxindole in Air [作者：AN GUANGHUI; ZHOU WEI; ZHANG GUANGQIAN; SUN HAO; HAN JIANLIN; PAN YI,期刊：Organic Letters, 页码：4482-4485 , 文章类型： Article，,卷期：2010年12-20] A highly efficient and facile palladium-catalyzed tandem diperoxidation and C-H activation process was reported, which provides a new pathway for the synthesis of biologically active diperoxides as well as oxindole deriv... Probing Nitrobenzhydrol Uncaging Mechanisms Using FerriCast [作者：KENNEDY DANIEL P; BROWN DANIEL C; BURDETTE SHAWN C,期刊：Organic Letters, 页码：4486-4489 , 文章类型： Article，,卷期：2010年12-20] The FerriCast derivative FC-NDBF was synthesized from 3-methyl-2-nitrodibenzofuran (NDBF). The photochemistry of the target Fe3+ photocage and several related congeners provides mechanistic insight into the uncaging quan... Palmyrolide A, an Unusually Stabilized Neuroactive Macrolide from Palmyra Atoll Cyanobacteria [作者：PEREIRA ALBAN R; CAO ZHENGYU; ENGENE NICLAS; SORIAMERCADO IRMA E; MURRAY THOMAS F; GERWICK WILLIAM H,期刊：Organic Letters, 页码：4490-4493 , 文章类型： Article，,卷期：2010年12-20] Palmyrolide A (1) is a new neuroactive macrolide isolated from a marine cyanobacterial assemblage composed of Leptolyngbya cl and Oscillatoria spp collected from Palmyra Atoll It features a rare N-methyl enamide and an I... Stereodivergent Synthesis of 1,3-syn- and -anti-Tetrahydropyrimidinones [作者：MORGEN MICHAEL; BRETZKE SEBASTIAN; LI PENGFEI; MENCHE DIRK,期刊：Organic Letters, 页码：4494-4497 , 文章类型： Article，,卷期：2010年12-20] An efficient protocol for the stereoselective synthesis of 1,3-syn and -anti-tetrahydropyrimidinones (syn- and anti-11a) is reported The modular procedure is based on a stereodivergent cyclization of readily available ur...