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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59条记录   Synthesis of alpha-CF(3)-Substituted Carbonyl Compounds with Relative and Absolute Stereocontrol Using Electrophilic CF(3)-Transfer Reagents [作者：MATOUSEK VACLAV; TOGNI ANTONIO; BIZET VINCENT; CAHARD DOMINIQUE,期刊：Organic Letters, 页码：5762-5765 , 文章类型： Article，,卷期：2011年13-21] Evans-type chiral lithium imide enolates undergo diastereoselective alpha-trifluoromethylation with a hypervalent Iodine-CF(3) reagent with up to 91% combined Isolated yield and 97:3 dr. The resulting isolated dlastereop... NiCl(2)(PMe(3))(2)-Catalyzed Borylation of Aryl Chlorides [作者：YAMAMOTO TETSUYA; MORITA TOMOYUKI; TAKAGI JUN; YAMAKAWA TETSU,期刊：Organic Letters, 页码：5766-5769 , 文章类型： Article，,卷期：2011年13-21] The cross-coupling of aryl chlorides and bis(pinacolato)diboron was achieved using NiCl(2)(PMe(3))(2) catalyst In the presence of metal 2,2,2-trifluoroethoxide. The catalyst smoothly provided the desired products regardl... A Facile Synthesis of Substituted 2-Alkylquinolines through [3+3] Annulation between 3-Ethoxycyclobutanones and Aromatic Amines at Room Temperature [作者：SHAN GANG; SUN XIUYUN; XIA QIAN; RAO YU,期刊：Organic Letters, 页码：5770-5773 , 文章类型： Article，,卷期：2011年13-21] An efficient single-step approach toward the synthesis of 2-alkylquinolines is described. Through a Lewis acid mediated [3 + 3] annulation reaction between 3-ethoxycyclobutanones and aromatic amines, a variety of multisu... Rational Design and Synthesis for Versatile FRET Ratiometric Sensor for Hg(2+) and Fe(2+): A Flexible 8-Hydroxyquinoline Benzoate Linked Bodipy-Porphyrin Dyad [作者：CHEN YUTING; WAN LIANG; YU XIANG; LI WENJUN; BIAN YONGZHONG; JIANG JIANZHUANG,期刊：Organic Letters, 页码：5774-5777 , 文章类型： Article，,卷期：2011年13-21] A flexible 8-hydroxyquinoline benzoate linked Bodipy-porphyrin dyad has been designed, synthesized, and characterized. Binding of this dyad with Hg(2+)/Fe(2+) induced just the opposite (promoting/restraining) influence o... Stereoselective Organocatalytic One-Pot alpha,alpha-Bifunctionalization of Acetaldehyde by a Tandem Mannich Reaction/Electrophilic Amination [作者：COEFFARD VINCENT; DESMARCHELIER ALARIC; MOREL BENEDICTE; MOREAU XAVIER; GRECK CHRISTINE,期刊：Organic Letters, 页码：5778-5781 , 文章类型： Article，,卷期：2011年13-21] The first asymmetric organocatalyzed one-pot alpha,alpha-bifunctionalization of acetaldehyde with two different electrophiles is described. A diarylprolinol silyl ether-catalyzed reaction of acetaldehyde with an imine an... Fast and Protecting-Group-Free Synthesis of (+/-)-Subincanadine C [作者：YU FANGMIAO; CHENG BIN; ZHAI HONGBIN,期刊：Organic Letters, 页码：5782-5783 , 文章类型： Article，,卷期：2011年13-21] The first total synthesis of (+/-)-subincanadine C has been accomplished in a protecting-group-free fashion. This pentacyclic indole alkaloid was synthesized in six steps from the known intermediate 4, featuring Ni(COD)(... Effect of Five-Membered Heteroaromatic Linkers to the Performance of Phenothiazine-Based Dye-Sensitized Solar Cells [作者：KIM SE HUN; KIM HYUN WOO; SAKONG CHUN; NAMGOONG JINWOONG; PARK SE WOONG; KO MIN JAE; LEE CHOONG HYUK; LEE WAN IN; KIM JAE PIL,期刊：Organic Letters, 页码：5784-5787 , 文章类型： Article，,卷期：2011年13-21] Phenothiazine derivatives with various conjugated linkers (furan, thiophene, and 3,4-ethylenedioxythiophene) were synthesized and used in dye-sensitized solar cells to study the effect of conjugated linkers on device per... Tetrapropylammonium Perruthenate Catalyzed Glycol Cleavage to Carboxylic (Di)Acids [作者：SCHMIDT ANDREAKATHARINA C; STARK CHRISTIAN B W,期刊：Organic Letters, 页码：5788-5791 , 文章类型： Article，,卷期：2011年13-21] A new method to accomplish glycol cleavage to carboxylic (di)acids in one step using catalytic amounts of tetrapropylammonium perruthenate (TPAP) together with N-methylmorpholine N-Oxide (NMO) as the stoichiometric oxida... Copper(I) Catalyzed Regioselective Asymmetric Alkoxyamination of Aryl Enamide Derivatives [作者：NAKANISHI MASAFUMI; MINARD CORINNE; RETAILLEAU PASCAL; CARIOU KEVIN; DODD ROBERT H,期刊：Organic Letters, 页码：5792-5795 , 文章类型： Article，,卷期：2011年13-21] The copper(I) catalyzed reaction of an enamide with an iminoiodane, in the presence of an alcohol, triggers the direct alkoxyamination of the double bond. This transformation represents a straightforward access to alpha-... Binaphthol-Catalyzed Asymmetric Conjugate Arylboration of Enones [作者：TURNER HEATHER M; PATEL JIGNESH; NILJIANSKUL NOOTAREE; CHONG J MICHAEL,期刊：Organic Letters, 页码：5796-5799 , 文章类型： Article，,卷期：2011年13-21] Conjugate addition of arylboronates to alpha,beta-unsaturated ketones may be catalyzed by chiral binaphthols with enantioselectivities of up to 99:1. Best results were observed with 3,3'-dichloro-BINOL. This chemistry wa... The Total Synthesis of the Crinine Alkaloid Hamayne via a Pd[0]-Catalyzed Intramolecular Alder-Ene Reaction [作者：PETIT LAURENT; BANWELL MARTIN G; WILLIS ANTHONY C,期刊：Organic Letters, 页码：5800-5803 , 文章类型： Article，,卷期：2011年13-21] The racemic form of the title alkaloid, 1, has been prepared in 13 steps from the ring-fused gem-dibromocyclopropane 7. Key transformations include the thermally induced electrocyclic ring-opening of compound 7, the Pd[0... N-Bromosuccinimide Promoted One-Pot Synthesis of Guanidine: Scope and Mechanism [作者：ZHOU LING; CHEN JIE; ZHOU JING; YEUNG YINGYEUNG,期刊：Organic Letters, 页码：5804-5807 , 文章类型： Article，,卷期：2011年13-21] A novel electrophilic one-pot guanidine synthesis has been developed using an olefin, a cyanimide, an amine, and N-bromosuccinimide. A number of guanidine derivatives were prepared with good to excellent yields. An rTRTV... Rh(III)-Catalyzed Oxidative Olefination of N-(1-Naphthyl)sulfonamides Using Activated and Unactivated Alkenes [作者：LI XUTING; GONG XUE; ZHAO MIAO; SONG GUOYONG; DENG JIAN; LI XINGWEI,期刊：Organic Letters, 页码：5808-5811 , 文章类型： Article，,卷期：2011年13-21] Rhodium(III)-catalyzed oxidative olefination of N-(1-naphthyl)sulfonamides has been achieved at the peri position. Three categories of olefins have been successfully applied. Activated olefins reacted to afford five-memb... Enantioselective Michael Addition of Malonates to 2-Enoylpyridine N-Oxides Catalyzed by Chiral Bisoxazoline-Zn(II) Complex [作者：RAY SUMIT K; SINGH PRADEEP K; SINGH VINOD K,期刊：Organic Letters, 页码：5812-5815 , 文章类型： Article，,卷期：2011年13-21] An enantioselective Michael addition of malonates to 2-enoylpyridine N-oxides catalyzed by a chiral bisoxazoline-Zn(II) complex has been developed. The corresponding Michael adducts have been obtained in high yields with... Stereoselective Synthesis of 2,6-trans-Tetrahydropyran via Primary Diamine-Catalyzed Oxa-Conjugate Addition Reaction of alpha,beta-Unsaturated Ketone: Total Synthesis of Psymberin [作者：BYEON SEONG RIM; PARK HEEKWANG; KIM HYOUNGSU; HONG JIYONG,期刊：Organic Letters, 页码：5816-5819 , 文章类型： Article，,卷期：2011年13-21] The total synthesis of psymberin was achieved employing a readily available chiral epoxide to prepare two of the three subunits in the natural product. The key reaction was a highly stereoselective organocatalytic oxa-co... Diastereoselective Intramolecular Friedel-Crafts Cyclizations of Substituted Methyl 2-(1H-indole-1-carbonyl)acrylates: Efficient Access to Functionalized 1H-Pyrrolo[1,2-a]indoles [作者：PATIL DADASAHEB V; CAVITT MARCHELLO A; FRANCE STEFAN,期刊：Organic Letters, 页码：5820-5823 , 文章类型： Article，,卷期：2011年13-21] A general, catalytic method for the diastereoselective synthesis of functionalized 1H-pyrrolo[1,2-a]indoles via an intramolecular Friedel-Crafts alkylation of N-acyl indoles Is reported. Products were obtained In excelle...