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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66条记录   Substituted Pyrroles via Olefin Cross-Metathesis [作者：DONOHOE TIMOTHY J; RACE NICHOLAS J; BOWER JOHN F; CALLENS CEDRIC K A,期刊：Organic Letters, 页码：4094-4097 , 文章类型： Article，,卷期：2010年12-18] Olefin cross-metathesis (CM) provides a short and convenient entry to diverse trans-gamma-aminoenones. When exposed to either acid or Heck arylation conditions, these intermediates are converted to mono-, di-, or trisubs... Copper(I)-Secondary Diamine Complex-Catalyzed Enantioselective Conjugate Boration of Linear beta,beta-Disubstituted Enones [作者：CHEN IHON; KANAI MOTOMU; SHIBASAKI MASAKATSU,期刊：Organic Letters, 页码：4098-4101 , 文章类型： Article，,卷期：2010年12-18] A copper(I) chiral secondary diamine (L-e) complex catalyzes an enantioselective conjugate boration of beta,beta-disubstituted enones in high yields and up to 99% ee. Product chiral tertiary organoboronates can be conver... Facile Formation of N-Acyl-oxazolidinone Derivatives Using Acid Fluorides [作者：SCHINDLER CORINNA S; FORSTER PATRIK M; CARREIRA ERICK M,期刊：Organic Letters, 页码：4102-4105 , 文章类型： Article，,卷期：2010年12-18] A mild method is presented for the formation of N-acylated oxazolidinones that employs acid fluorides and mild bases, such as (Pr2NEt)-Pr-i and NEt3. Optimized reaction conditions for two types of substrates have been de... Rhodium-Catalyzed Asymmetric Arylation of Azomethine Imines [作者：SHINTANI RYO; SOH YINGTECK; HAYASHI TAMIO,期刊：Organic Letters, 页码：4106-4109 , 文章类型： Article，,卷期：2010年12-18] A rhodium-catalyzed addition of sodium tetraarylborates to azomethine imines has been described. Highly efficient asymmetric catalysis has also been achieved by employing a chiral diene ligand to give 1-(diarylmethyl)pyr... Copper-Catalyzed Olefin Aminoacetoxylation [作者：MANCHENO DANNY E; THORNTON AARON R; STOLL ARMIN H; KONG AIDI; BLAKEY SIMON B,期刊：Organic Letters, 页码：4110-4113 , 文章类型： Article，,卷期：2010年12-18] A new catalyst system for intramolecular olefin aminoacetoxylation is described. In contrast to previously reported palladium- and copper-catalyzed systems, the conditions outlined in this communication favor piperdine f... The Electrical Properties of Biphenylenes [作者：SCHNEEBELI SEVERIN; KAMENETSKA MARIA; FOSS FRANK; VAZQUEZ HECTOR; SKOUTA RACHID; HYBERTSEN MARK; VENKATARAMAN LATHA; BRESLOW RONALD,期刊：Organic Letters, 页码：4114-4117 , 文章类型： Article，,卷期：2010年12-18] The effect of the partial antiaromaticity of biphenylene on its substitution chemistry, its oxidation potential, and its single-molecule conductance is explored. Biphenylene and fluorene molecules with linkers of two ami... Asymmetric Total Synthesis of (S)-(+)-Cocaine and the First Synthesis of Cocaine C-1 Analogs from N-Sulfinyl beta-Amino Ester Ketals [作者：DAVIS FRANKLIN A; THEDDU NARESH; EDUPUGANTI RAM,期刊：Organic Letters, 页码：4118-4121 , 文章类型： Article，,卷期：2010年12-18] Sulfinimine-derived alpha,beta-unsaturated pyrrolidine nitrones, on heating with Al(O-t-Bu)(3), undergo a highly stereoselective intramolecular [3 + 2] cycloaddition to give tricyclic isoxazolidines, which are transforme... Insertion-Coupling-Cycloisomerization Domino Synthesis and Cation-Induced Halochromic Fluorescence of 2,4-Diarylpyrano[2,3-b]indoles [作者：SCHOENHABER JAN; FRANK WALTER; MUELLER THOMAS J J,期刊：Organic Letters, 页码：4122-4125 , 文章类型： Article，,卷期：2010年12-18] 2,4-Diarylpyrano[2,3-b]indoles are formed via a Pd-Cu-catalyzed insertion coupling cycloisomerization domino reaction in moderate yields. Although the tricyclic systems are nonfluorescent in solution, protonation, quater... Palladium-Catalyzed Double Carbonylation Reactions of o-Dihaloarenes with Amines in Phosphonium Salt Ionic Liquids [作者：CAO HONG; ALPER HOWARD,期刊：Organic Letters, 页码：4126-4129 , 文章类型： Article，,卷期：2010年12-18] Palladium-catalyzed double carbonylation of o-dihaloarenes with amines in phosphonium salt ionic liquids proceeds efficiently to give the corresponding N-substituted phthalimides. This process can tolerate a wide array o... Base-Promoted Reaction of 5-Hydroxyuracil Derivatives with Peroxyl Radicals [作者：AMORATI RICCARDO; VALGIMIGLI LUCA; PEDULLI GIAN FRANCO; GRABOVSKIY STANISLAV A; KABALNOVA NATALIA N; CHATGILIALOGLU CHRYSSOSTOMOS,期刊：Organic Letters, 页码：4130-4133 , 文章类型： Article，,卷期：2010年12-18] Addition of millimolar amounts of a weak base (pyridines) dramatically accelerates the reaction with peroxyl radicals of two biologically relevant uracil derivatives, 5-hydroxyuracil (HU) and 5-hydroxy-6-methyluracil (HM... Unprecedented Radical-Radical Reaction of a [2.2]Paracyclophane Derivative Containing an Imidazolyl Radical Moiety [作者：HATANO SAYAKA; SAKAI KEN; ABE JIRO,期刊：Organic Letters, 页码：4152-4155 , 文章类型： Article，,卷期：2010年12-18] Pseudogem-DPIM-DPI[2.2]PC dimer (3), with a C-N bond between the [2.2]paracyclophane ([2.2]PC) moiety and the imidazole ring, was synthesized. This is the first crystallographic observation of a highly sterically constra... Facile Synthesis of Bicyclic Amidines and Imidazolines from 1,2-Diamines [作者：ZHU QIANG; LU YIXIN,期刊：Organic Letters, 页码：4156-4159 , 文章类型： Article，,卷期：2010年12-18] A facile synthesis of chiral bicyclic amidines and imidazolines from readily available 1,2-diamines has been developed. The reported synthetic strategy relies on an intramolecular cyclization which involves a carboxylic ... Total Synthesis of (-)-Apicularen A [作者：PALIMKAR SANJAY S; UENISHI JUNICHI,期刊：Organic Letters, 页码：4160-4163 , 文章类型： Article，,卷期：2010年12-18] A convergent total synthesis of (-)-apicularen A, a highly cytostatic 12-membered macrolide, has been accomplished. The key steps include assembling of iodoalkene 8 and aldehyde 9 by Nozaki-Hiyama-Kishi (NHK) coupling, s... Benzothiadiazole-Based D-pi-A-pi-D Organic Dyes with Tunable Band Gap: Synthesis and Photophysical Properties [作者：WANG JINLIANG; XIAO QI; PEI JIAN,期刊：Organic Letters, 页码：4164-4167 , 文章类型： Article，,卷期：2010年12-18] A series of symmetrical D-pi-A-pi-D molecules based on benzothiadiazole and oligo(thienylenevinylene)s were facilely developed. The investigation of their photophysical and electrochemical properties demonstrated that th... Diastereoselective Synthesis of 6-Trifluoromethyl-5,6-dihydropyrans via Phosphine-Catalyzed [4+2] Annulation of alpha-Benzylallenoates with Ketones [作者：WANG TONG; YE SONG,期刊：Organic Letters, 页码：4168-4171 , 文章类型： Article，,卷期：2010年12-18] The highly diastereoselective synthesis of 6-trifluoromethyl-5,6-dihydropyrans was realized by the phosphine-catalyzed [4 + 2] annulation of ethyl alpha-benzylallenoates and trifluoromethyl ketones. Highly Enantioselective Fluorescent Recognition of Serine and Other Amino Acid Derivatives [作者：LIU HAILIN; ZHU HUPING; HOU XUELONG; PU LIN,期刊：Organic Letters, 页码：4172-4175 , 文章类型： Article，,卷期：2010年12-18] The BINOL amino alcohol compound (S)-4 was found to conduct enantioselective fluorescent recognition of a serine derivative with an unprecedented high ef [enantioselective fluorescent enhancement = (I-D - I-0)/(I-L - I-0...