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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80条记录   Naphthalimide Appended Rhodamine Derivative: Through Bond Energy Transfer for Sensing of Hg2+ Ions [作者：KUMAR MANOJ; KUMAR NARESH; BHALLA VANDANA; SINGH HARDEV; SHARMA PARDUMAN RAJ; KAUR TANDEEP,期刊：Organic Letters, 页码：1422-1425 , 文章类型： Article，,卷期：2011年13-6] A naphthalimide appended rhodamine based fluorescent chemosensor '1' is synthesized which undergoes through bond energy transfer in the presence of Hg2+ ions in mixed aqueous media. A Catalytic Route to Ampakines and Their Derivatives [作者：MULZER MICHAEL; COATES GEOFFREY W,期刊：Organic Letters, 页码：1426-1428 , 文章类型： Article，,卷期：2011年13-6] A catalytic domino reaction that efficiently provides access to an important class of heterocycles, the ampakines, is reported. Our approach Is based on the cobalt-catalyzed hydroformylation of dihydrooxazines and allows... Palladium-Catalyzed Denitrogenation Reaction of 1,2,3-Benzotriazin-4(3H)-ones Incorporating Isocyanides [作者：MIURA TOMOYA; NISHIDA YUI; MORIMOTO MASAO; YAMAUCHI MOTOSHI; MURAKAMI MASAHIRO,期刊：Organic Letters, 页码：1429-1431 , 文章类型： Article，,卷期：2011年13-6] 1,2,3-Benzotriazin-4(3H)-ones and 1,2,3,4-benzothiatriazine 1,1(2H)-dioxide reacted with isocyanides in the presence of a palladium catalyst to give 3-(imino)isoindolin-1-ones and 3-(Imino)thiaisoindoline 1,1-dioxides, r... Pd-Catalyzed Desulfitative Heck Coupline with Dioxygen as the Terminal Oxidant [作者：ZHOU XIANYA; LUO JIAYING; LIU JING; PENG SHENGMING; DENG GUOJUN,期刊：Organic Letters, 页码：1432-1435 , 文章类型： Article，,卷期：2011年13-6] A Pd-catalyzed desulfitative Heck-type reaction of aromatic sulfinic acid sodium salts with various olefins is developed with O-2 as the terminal oxidant under mild conditions. The presence of phosphane ligand DPEphos In... Stereoselective Synthesis of 12,13-Cyclopropyl-Epothilone B and Side-Chain-Modified Variants [作者：SCHIESS RAPHAEL; GERTSCH JUERG; SCHWEIZER W BERND; ALTMANN KARLHEINZ,期刊：Organic Letters, 页码：1436-1439 , 文章类型： Article，,卷期：2011年13-6] A general strategy has been devised for the stereoselective synthesis of 12,13-cyclopropyl-epothilone B and side-chain-modified variants thereof, which relies on late stage introduction of the heterocycle through Wittig ... Addition of TMS-Substituted Oxiranyl Anions to Acylilanes. A Highly Stereoselective Approach to Tetrasubstitued (Z)-beta-Hydroxy-alpha-TMS Silyl Enol Ethers [作者：SONG ZHENLEI; KUI LEIZHOU; SUN XIANWEI; LI LINJIE,期刊：Organic Letters, 页码：1440-1443 , 文章类型： Article，,卷期：2011年13-6] A highly stereoselective approach to novel tetrasubstituted (Z)-beta-hydroxy-alpha-TMS silyl enol ethers is described. The reaction proceeds via a sequential addition/[1,2]-Brook rearrangement/epoxide-opening process of ... Nucleophilic Fluorination Reactions Starting from Aqueous Fluoride Ion Solutions [作者：ZHAO HAIYAN; GABBAI FRANCOIS P,期刊：Organic Letters, 页码：1444-1446 , 文章类型： Article，,卷期：2011年13-6] The sulfonium borane 2(+) reacts with fluoride anions in MeOH/H2O mixtures to afford the zwitterionic fluoroborate 2-F as an easily isolable nonhygroscopic solid. In dry acetonitrile, 2-F reacts with PhS- to afford the a... Novel Aerobic Oxidation of Primary Sulfones to Carboxylic Acids [作者：BONAPARTE AMY C; BETUSH MATTHEW P; PANSERI BETTINA M; MASTARONE DANIEL J; MURPHY RYAN K; MURPHREE S SHAUN,期刊：Organic Letters, 页码：1447-1449 , 文章类型： Article，,卷期：2011年13-6] Primary alkyl aryl sulfones are converted to the corresponding carboxylic acids in fair to excellent yield through double deprotonation and exposure to atmospheric oxygen. The methodology allows for the convenient synthe... Wavelength-Selective Uncaging of dA and dC Residues [作者：SCHAEFER FLORIAN; JOSHI KHASHTI BALLABH; FICHTE MANUELA A H; MACK TIMO; WACHTVEITL JOSEF; HECKEL ALEXANDER,期刊：Organic Letters, 页码：1450-1453 , 文章类型： Article，,卷期：2011年13-6] Nitrodibenzofuran (NDBF) groups are used as photolabile "caging" groups to temporarily mask the Watson-Crick interaction of dA and dC residues. They show improved masking capabilities and are photodeprotected 12 times mo... Synthesis, Properties and Ambipolar Organic Field-Effect Transistor Performances of Symmetrically Cyanated Pentacene and Naphthacene as Air-Stable Acene Derivaties [作者：KATSUTA SHUHEI; MIYAGI DAICHI; YAMADA HIROKO; OKUJIMA TETSUO; MORI SHIGEKI; NAKAYAMA KENICHI; UNO HIDEMITSU,期刊：Organic Letters, 页码：1454-1457 , 文章类型： Article，,卷期：2011年13-6] 5,12-Dicyanonaphthacene and 6,13-dicyanopentacene have been synthesized for the first time. The LUMO and HOMO levels are deepened as predicted and fabricated organic field-effect transistors (OFETs) showed ambipolar resp... Highly Efficient Organocatalytic Kinetic Resolution of Activated Nitroallylic Acetates with Aldehydes via Conjugate Addition-Elimination [作者：REDDY RAJU JANNAPU; CHEN KWUNMIN,期刊：Organic Letters, 页码：1458-1461 , 文章类型： Article，,卷期：2011年13-6] A novel, efficient, and unprecedented organocatalytic kinetic resolution has been developed. For the first time, a variety of nitroallylic acetates 1a-I have been resolved with aldehydes in the presence of 2(2.5 mol %) v... Dicyanostilbene-Derived Two-Photon Fluorescence Probe for Free Zinc Ions in Live Cells and Tissues with a Large Two-Photon Action Cross Section [作者：HUANG CHIBAO; QU JUNLE; QI JING; YAN MENG; XU GAIXIA,期刊：Organic Letters, 页码：1462-1465 , 文章类型： Article，,卷期：2011年13-6] A novel two-photon fluorescence probe for Zn2+ derived from dicyanostilbene as a two-photon fluorophore and 4-(pyridine-2-ylmethyl)piperazine as a novel Zn2+ ligand was developed. The probe shows a 72.5-fold fluorescence... SNAr Reactions of Nitro-(pentafluorosulfanyl)benzenes To Generate SF5 Aryl Ethers and Sulfides [作者：BEIER PETR; PASTYRIKOVA TEREZA; VIDA NORBERT; IAKOBSON GEORGE,期刊：Organic Letters, 页码：1466-1469 , 文章类型： Article，,卷期：2011年13-6] Nucleophilic aromatic substitution of the nitro group of para- and meta-nitro-(pentafluorosulfanyl)benzene with alkoxides and thiolates generates a range of substituted 4- and 3-(pentafluorosulfanyl)benzenes in a single-... Vicarious Nucleophilic Substitution of alpha-Hydrogen of BODIPY and Its Extension to Direct Ethenylation [作者：LEEN VOLKER; VAN DER AUWERAER MARK; BOENS NOEL; DEHAEN WIM,期刊：Organic Letters, 页码：1470-1473 , 文章类型： Article，,卷期：2011年13-6] Direct, oxidizer-free substitution of the 3-hydrogen of BODIPY derivatives has been established through a vicarious nucleophilic substitution procedure. This methodology has been combined with a reversible Michael additi... Palladium-Catalyzed Oxidative Alkynylation of Heterocycles with Terminal Alkynes under Air Conditions [作者：KIM SEOK HWAN; YOON JUNGHO; CHANG SUKBOK,期刊：Organic Letters, 页码：1474-1477 , 文章类型： Article，,卷期：2011年13-6] Pd-Catalyzed oxidative alkynylation of azoles with terminal alkynes was developed via simultaneous activation of both heterocyclic sp(2) C-H and alkynyl sp C-H bonds. The choice of palladium catalyst source and external ... Thermodynamic Control of 1,3-Boratropic Shifts of alpha- and gamma-Stannyl-Substituted Allylboranes: Hyperconjugation Outweighs Steric Effects [作者：STEWART PRESTON S; CHEN MING; ROUSH WILLIAM R; ESS DANIEL H,期刊：Organic Letters, 页码：1478-1481 , 文章类型： Article，,卷期：2011年13-6] (E)-delta-Stannyl homoallylic alcohols are prepared by an allene hydroboration-aldehyde allylboration sequence (Chen, M. et al. J. Am. Chem. Soc. 2010, 132, 7881). Key to this reaction sequence is that the kinetic allene...