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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48条记录   Bidirectional Photoinduced Electron-Transfer Quenching Is Observed in 4-Amino-1,8-naphthalimide-Based Fluorescent Anion Sensors. [作者：Veale, Emma B.;Gunnlaugsson, Thorfinnur;,期刊：Journal of Organic Chemistry, 页码：8073-8076 , 文章类型： 研究论文，,卷期：2008年73-20] The synthesis and photophys. evaluations of two new fluorescent photoinduced electron-transfer (PET) anion sensors, 1 and 2, is described. These are based on 4-amino-1,8-naphthalimide fluorophores and diarylthiourea ani... Synthesis of Enantiomerically Pure (S)-Methano-carba-ribo Uracil Nucleoside Derivatives for Use as Antiviral Agents and P2Y Receptor Ligands. [作者：Melman, Artem;Zhong, Minghong;Marquez, Victor E.;Jacobson, Kenneth A.;,期刊：Journal of Organic Chemistry, 页码：8085-8088 , 文章类型： 研究论文，,卷期：2008年73-20] We have developed an approach toward enantiomerically pure (S)-methano-carba ribonucleosides based on several functional group transformations on a sensitive bicyclo[3.1.0]hexane system. D-Ribose was transformed into met... Installation of Electron-Donating Protective Groups, a Strategy for Glycosylating Unreactive Thioglycosyl Acceptors using the Preactivation-Based Glycosylation Method. [作者：Zeng, Youlin;Wang, Zhen;Whitfield, Dennis;Huang, Xuefei;,期刊：Journal of Organic Chemistry, 页码：7952-7962 , 文章类型： 研究论文，,卷期：2008年73-20] Preactivation-based chemoselective glycosylation is a powerful strategy for oligosaccharide synthesis with its successful application in assemblies of many complex oligosaccharides. However, difficulties were encountere... A Second Generation Formal Synthesis of (-)-Cephalotaxine. [作者：Hameed, Abdul;Blake, Alexander J.;Hayes, Christopher J.;,期刊：Journal of Organic Chemistry, 页码：8045-8048 , 文章类型： 研究论文，,卷期：2008年73-20] A second generation formal synthesis of the alkaloid (-)-cephalotaxine has been achieved using an alkylidene carbene 1,5-CH insertion reaction to establish a key quaternary stereocenter. The carbene precursor was readil... Synthesis of a Stable Iminium Salt and Propellane Derivatives. [作者：Nagase, Hiroshi;Yamamoto, Naoshi;Nemoto, Toru;Yoza, Kenji;Kamiya, Kenshu;Hirono, Shuichi;Momen, Shinobu;Izumimoto, Naoki;Hasebe, Ko;Mochizuki, Hidenori;Fujii, Hideaki;,期刊：Journal of Organic Chemistry, 页码：8093-8096 , 文章类型： 研究论文，,卷期：2008年73-20] The treatment of morphinans I (R = Me, Et, i-Bu, cyclopropylmethyl, allyl) with NaH and MsCl provided very stable iminium salts II possessing propellane skeleton. One of the synthesized iminium salts, II (R = i-Bu), was... A Synthesis of (-)-Mintlactone. [作者：Bates, Roderick W.;Sridhar, S.;,期刊：Journal of Organic Chemistry, 页码：8104-8105 , 文章类型： 研究论文，,卷期：2008年73-20] Mintlactone (I) is synthesized in a concise and efficient way by using a highly diastereoselective intramol. propargylic Barbier reaction, followed by an allenol cyclocarbonylation. Tin(II) chloride is found to be the m... A Highly Regioselective Palladium-Catalyzed Hydrophosphination of Alkynes Using a Diphosphine-Hydrosilane Binary System. [作者：Kawaguchi, Shin-ichi;Nagata, Shoko;Nomoto, Akihiro;Sonoda, Motohiro;Ogawa, Akiya;,期刊：Journal of Organic Chemistry, 页码：7928-7933 , 文章类型： 研究论文，,卷期：2008年73-20] A novel transition-metal-catalyzed hydrophosphination of terminal alkynes using a diphosphine-hydrosilane binary system takes place regioselectively to provide vinylic phosphines, which undergo air oxidn. during workup, ... A Route to 1,4-Disubstituted Aromatics and Its Application to the Synthesis of the Antibiotic Culpin. [作者：Sunasee, Rajesh;Clive, Derrick L. J.;,期刊：Journal of Organic Chemistry, 页码：8016-8020 , 文章类型： 研究论文，,卷期：2008年73-20] A method is described for converting tert-Bu benzoates or tert-Bu 1-naphthoates into derivs. having an alkyl or substituted alkyl group in a 1,4-relationship to an alkyl, aryl, alkenyl, or alkynyl group. Key steps in th... Synthesis of (?- and (-)-Vibralactone and Vibralactone C. [作者：Zhou, Quan;Snider, Barry B.;,期刊：Journal of Organic Chemistry, 页码：8049-8056 , 文章类型： 研究论文，,卷期：2008年73-20] Mander reductive alkylation of Me 2-methoxybenzoate with prenyl bromide and hydrolysis of the enol ether afforded Me 6-oxo-1-prenyl-2-cyclohexenecarboxylate. This was converted in five steps (redn. of the ketone, sapon.... Enantiopure Quaternary a-Trifluoromethyl-a-alkoxyaldehydes from L-Tartaric Acid Derived Ketoamides. [作者：Nonnenmacher, Jean;Massicot, Fabien;Grellepois, Fabienne;Portella, Charles;,期刊：Journal of Organic Chemistry, 页码：7990-7995 , 文章类型： 研究论文，,卷期：2008年73-20] The diastereoselective nucleophilic trifluoromethylation of a range of ketoamides I (R1 = R2 = Me; R1 = H, R2 = Ph; R3 = Me, OMe; R4 = Et, Ph, 2-MeOC6H4, 3,5-F2C6H3, 2-thienyl, cyclopropyl, etc.) derived from L-tartaric ... Synthesis of Tricyclic Phosphonopyrrolidines via IMDAF: Experimental and Theoretical Investigation of the Observed Stereoselectivity. [作者：Claeys, Diederica D.;Moonen, Kristof;Roman, Bart I.;Nemykin, Victor N.;Zhdankin, Viktor V.;Waroquier, Michel;Van Speybroeck, Veronique;Stevens, Christian V.;,期刊：Journal of Organic Chemistry, 页码：7921-7927 , 文章类型： 研究论文，,卷期：2008年73-20] During the synthesis of tricyclic phosphonopyrrolidines via intramol. Diels-Alder reactions of 1-acylamino(furan-2-yl)methyl phosphonates, two isomers are formed in most cases. The presence of a short three-atom tether ... Thermal Elimination of Diethyldithiocarbamates and Application in the Synthesis of (?-Ferrugine. [作者：Ahmed, Shamim;Baker, Luke A.;Grainger, Richard S.;Innocenti, Paolo;Quevedo, Camilo E.;,期刊：Journal of Organic Chemistry, 页码：8116-8119 , 文章类型： 研究论文，,卷期：2008年73-20] cyclization reactions of carbamoyl radicals, undergo a Chugaev-like thermal elimination of the dithiocarbamate group in refluxing di-Ph ether to form a,b- and/or b,g-unsatd. amides, depending on the structure of the star... Cycloaddition Across the Benzofuran Ring as an Approach to the Morphine Alkaloids. [作者：France, Stefan;Boonsombat, Jutatip;Leverett, Carolyn A.;Padwa, Albert;,期刊：Journal of Organic Chemistry, 页码：8120-8123 , 文章类型： 研究论文，,卷期：2008年73-20] The intramol. Diels-Alder reaction of several amidofurans tethered onto a benzofuran ring was examd. as a strategy for the synthesis of morphine. Bromo substitution on the furan ring did not provide sufficient activatio... BF3譋t2O-Mediated Cascade Cyclizations: Synthesis of Schweinfurthins F and G. [作者：Mente, Nolan R.;Neighbors, Jeffrey D.;Wiemer, David F.;,期刊：Journal of Organic Chemistry, 页码：7963-7970 , 文章类型： 研究论文，,卷期：2008年73-20] The total synthesis of the natural stilbene (+)-schweinfurthin G (I) has been accomplished through a sequence based on an efficient cationic cascade cyclization. This cascade process is initiated by Lewis acid promoted ... Asymmetric Synthesis of 6'-Hydroxyarenarol: The Proposed Biosynthetic Precursor to Popolohuanone E. [作者：Munday, Rachel H.;Denton, Ross M.;Anderson, James C.;,期刊：Journal of Organic Chemistry, 页码：8033-8038 , 文章类型： 研究论文，,卷期：2008年73-20] The first synthesis of (+)-6'-hydroxyarenarol (I), the proposed biogenetic precursor to popolohuanone E, is described. An enantioselective route to a key iodide intermediate has been developed allowing the asym. synthes... A Concise Approach to the Polycyclic Scaffold of Frondosin D. [作者：Masters, Kye-Simeon;Flynn, Bernard L.;,期刊：Journal of Organic Chemistry, 页码：8081-8084 , 文章类型： 研究论文，,卷期：2008年73-20] In a study directed at developing a concise approach to the polycyclic core I of frondosin D, a Stille-Heck sequence has been identified that gives direct access to the trimethylbicyclo[5.4.0]undecane ring system common ...