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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31条记录   Two-Phase Terpene Total Synthesis: Historical Perspective and Application to the Taxol (R) Problem [作者：ISHIHARA YOSHIHIRO; BARAN PHIL S,期刊：SYNLETT, 页码：1733-1745 , 文章类型： Article，,卷期：2010年-12] This account presents our laboratory's latest endeavors in C-sp3-H activation in the context of total synthesis, as well as a historical perspective of the field of C-sp3-H activation. Our viewpoints in using a two-phase... Multiphase Homogeneous Catalysis: Common Procedures and Recent Applications [作者：LOMBARDO MARCO; QUINTAVALLA ARIANNA; CHIARUCCI MICHEL; TROMBINI CLAUDIO,期刊：SYNLETT, 页码：1746-1765 , 文章类型： Article，,卷期：2010年-12] A top priority in the development of new catalytic processes is the challenging full separation of the catalyst components from the products. Only extremely small residues of metals or ligands are often tolerated in the ... MoO2Cl2(dmf)(2)-Catalyzed Domino Reactions of omega-Nitro Alkenes to 3,4-Dihydro-2H-1,4-benzothiazines and Other Heterocycles [作者：MALAKAR CHANDI C; MERISOR ELENA; CONRAD JUERGEN; BEIFUSS UWE,期刊：SYNLETT, 页码：1766-1770 , 文章类型： Article，,卷期：2010年-12] Using the transformation of allyl 2-nitrophenyl thioethers to 3,4-dihydro-2H-1,4-benzothiazines as an example the reductive cyclization of omega-nitroalkenes to saturated N-heterocycles can be performed highly selective ... 1,2,4-Triazole Synthesis via Amidrazones [作者：EL KAIM LAURENT; GIZZI MARION; GRIMAUD LAURENCE,期刊：SYNLETT, 页码：1771-1774 , 文章类型： Article，,卷期：2010年-12] We present a two-step procedure for the synthesis of 1,2,4-triazole derivatives from a primary amide and a hydrazine via an oxidative process. An Expeditious Method for the First Asymmetric Synthesis of Dexoxadrol from the Chiral Pool [作者：ETAYO PABLO; BADORREY RAMON; DIAZDEVILLEGAS MARIA D; GALVEZ JOSE A; LOPEZRAMDEVIU PILAR,期刊：SYNLETT, 页码：1775-1778 , 文章类型： Article，,卷期：2010年-12] A new, straightforward and high-yielding methodology for the asymmetric synthesis of 2-(1,3-dioxolan-4-yl)piperidines is described. This approach involves a highly stereoselective addition of vinylmagnesium bromide to N-... Synthesis of 2,5,6-Trisubstituted Benzimidazoles by Heck and Subsequent 6 pi-Electrocyclization-Dehydrogenation Reactions of 2,4,5-Tribromo-N-methylimidazole and 2-Aryl-4,5-dibromo-N-methylimidazoles [作者：TOGUEM SERGEMITHERAND TENGHO; LANGER PETER,期刊：SYNLETT, 页码：1779-1782 , 文章类型： Article，,卷期：2010年-12] 2,5,6-Trisubstituted benzimidazoles were prepared by Heck reactions of 2,4,5-tribromo-N-methylimidazole and 2-aryl-4,5-dibromo-N-methyl-imidazoles and subsequent 6 pi-electrocyclization-dehydrogenation reactions. N-Heterocyclic Carbene Catalyzed [2+2] Cycloaddition of Aryl Isothiocyanates and Nitroolefins: An Efficient Synthesis of beta-Thiolactams [作者：AWASTHI CHHAMA; YADAV LAL DHAR S,期刊：SYNLETT, 页码：1783-1788 , 文章类型： Article，,卷期：2010年-12] The first example of a convenient N-heterocyclic carbene (NHC) catalyzed synthesis of beta-thiolactams via [2+2] cycloaddition of aryl isothiocyanates and nitroolefins is reported. The protocol affords beta-thiolactams i... Tetrahydrofurans from Substituted Hex-5-yne-1,4-diols [作者：SCHWEHM CAROLIN; WOHLAND MAX; MAIER MARTIN E,期刊：SYNLETT, 页码：1789-1792 , 文章类型： Article，,卷期：2010年-12] It was discovered that substituted hex-5-yne-1,4-diols like 16, 28, and 30 undergo a domino sequence of Meyer-Schuster rearrangement followed by Michael addition forming 2,5-disubstituted tetrahydrofurans in presence of ... Preparation of Pyrimidine-N-oxides by Condensation of Functionalized Enamides with Hydroxylamine Hydrochloride [作者：ZIMMER REINHOLD; LECHEL TILMAN; RANCAN GIAIME; BERA MRINAL K; REISSIG HANSULRICH,期刊：SYNLETT, 页码：1793-1796 , 文章类型： Article，,卷期：2010年-12] beta-Alkoxy-beta-ketoenamides and hydroxylamine hydrochloride smoothly provide pyrimidine-N-oxides under very mild conditions. Alkyl, aryl, and heteroaryl substituents are compatible with this new method. By treatment wi... Epoxides to alpha-Mercapto-gamma-lactones via Ionic Liquid Promoted Mercaptoacetylative Ring-Opening-Ring-Closing Cascade [作者：PATEL RAJESH; SRIVASTAVA VISHNU P; YADAV LAL DHAR S,期刊：SYNLETT, 页码：1797-1802 , 文章类型： Article，,卷期：2010年-12] Task-specific ionic liquid promoted {[Bmim]OH} one-pot synthesis of alpha-mercapto-gamma-lactones is reported. The present protocol involves regioselective epoxide ring opening and intramolecular translactonisation casca... A New Effective Synthesis of Arene Mono- and Disulfonyl Chlorides [作者：BARBERO MARGHERITA; BAZZI STEFANO; CADAMURO SILVANO; DUGHERA STEFANO; MAGISTRIS CLAUDIO; VENTURELLO PAOLO,期刊：SYNLETT, 页码：1803-1806 , 文章类型： Article，,卷期：2010年-12] Arene mono- and disulfonyl chlorides have been easily synthesized starting from the corresponding anilines via aqueous oxidative chlorination of S-aryl O-ethyl dithiocarbonates intermediates, aryl methyl sulfides, or fro... Highly Stereoselective Preparation of Chiral alpha-Substituted Sulfides from alpha-Chloro Sulfides via 1,2-Asymmetric Induction [作者：RAGHAVAN SADAGOPAN; KUMAR V VINOTH; CHOWHAN L RAJU,期刊：SYNLETT, 页码：1807-1810 , 文章类型： Article，,卷期：2010年-12] A C-S stereogenic center is created with efficient stereo-control by 1,2-asymmetric induction due to a vicinal C-O stereogenic center. Propargylic, allylic, and alkyl sulfides are readily prepared in good yield and stere... A General Method for the Synthesis of 2,2-[60]Fullerenoalkanals: The Reaction of [60]Fullerene with 2-Bromoenol Silyl Ethers [作者：ITO HIROSHI; KISHI YUSUKE; NISHIKAWA YOHEI; TADA TOMONORI; ISHIDA YASUHIRO; SAIGO KAZUHIKO,期刊：SYNLETT, 页码：1811-1814 , 文章类型： Article，,卷期：2010年-12] Five kinds of 2,2-[60]fullerenoalkanals were synthesized by the fluoride ion-mediated reaction of [60]fullerene with 2-bromoenol silyl ethers, which were easily prepared by 2-bromination of the corresponding enol silyl e... An Efficient Synthesis of Carbamates by Tin-Catalyzed Transcarbamoylation Reactions of Primary and Secondary Alcohols [作者：ICHIKAWA YOSHIYASU; MORISHITA YUKINORI; KUSABA SHUHEI; SAKIYAMA NAOTO; MATSUDA YASUNORI; NAKANO KEIJI; KOTSUKI HIYOSHIZO,期刊：SYNLETT, 页码：1815-1818 , 文章类型： Article，,卷期：2010年-12] A new approach to the synthesis of carbamates based on a tin-catalyzed transcarbamoylation process has been developed. Reactions of primary and secondary alcohols with phenyl carbamate in toluene at 90 degrees C proceed ... Palladium-Catalyzed N-Arylation of Bis(ortho-substituted aryl)amines: an Efficient Method for Preparing Sterically Congested Triarylamines [作者：KUWANO RYOICHI; MATSUMOTO YASUHIRO; SHIGE TAKENORI; TANAKA TAKESHI; SOGA SHINICHI; HANASAKI YASUAKI,期刊：SYNLETT, 页码：1819-1824 , 文章类型： Article，,卷期：2010年-12] Bis(ortho-substituted aryl)amines were arylated on the nitrogen atom with various haloarenes in high yields using the palladium catalyst, which was generated from palladium(II) acetate and tri(tert-butyl)phosphine. Microwave Irradiation for Accelerating Synthesis of [1,2,4]Triazole[4,3-a]-pyrimidines Based on Isoflavones [作者：ZHANG ZUNTING; XIE JUAN; ZHU MULIN; XUE DONG,期刊：SYNLETT, 页码：1825-1828 , 文章类型： Article，,卷期：2010年-12] Microwave irradiation was used to accelerate the cyclo-condensation of isoflavones and 3-amino-1,2,4-triazoles in the presence of sodium methoxide to produce 6,7-diphenyl[1,2,4]triazolo[4,3-a]pyrimidines in good to moder...