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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   Construction of Enantioenriched Tertiary Stereogenic Centers by Nickel- and Palladium-Catalyzed Cross-Coupling Reactions of Alkyl Electrophiles [作者：TAYLOR BUCK L H; JARVO ELIZABETH R,期刊：SYNLETT, 页码：2761-2765 , 文章类型： Article，,卷期：2011年-19] Nickel and palladium catalysts have been developed for the cross-coupling of many challenging secondary alkyl electrophiles. Recent progress in this area is reviewed with emphasis on the control of stereochemistry in the... Novel Amino Acid Based Bifunctional Chiral Phosphines [作者：WANG SUXI; HAN XIAOYU; ZHONG FANGRUI; WANG YOUQING; LU YIXIN,期刊：SYNLETT, 页码：2766-2778 , 文章类型： Article，,卷期：2011年-19] As a significant complement to amino catalysts, phosphines are versatile Lewis base catalysts capable of promoting a wide range of diverse organic transformations. In particular, chiral phosphines bearing a Bronsted acid... Various Entries to Vinyl Chloride Derivatives and their Applications in Total Synthesis of Natural Products [作者：GUINCHARD XAVIER; ROULLAND EMMANUEL,期刊：SYNLETT, 页码：2779-2788 , 文章类型： Article，,卷期：2011年-19] Our program of total synthesis of natural products stimulated our imagination and led us to design various methodologies to build the vinyl chloride function of our targets. The access to vinyl chlorides also offers an e... Rhodium(III)-Catalyzed Synthesis of Pyridines from alpha,beta-Unsaturated Ketoximes and Internal Alkynes [作者：TOO PEI CHUI; NOJI TOSHIHARU; LIM YING JIE; LI XINGWEI; CHIBA SHUNSUKE,期刊：SYNLETT, 页码：2789-2794 , 文章类型： Article，,卷期：2011年-19] A method for the synthesis of highly substituted pyridines from alpha,beta-unsaturated oximes and internal alkynes has been developed using [Cp*RhCl(2)](2)-CsOPiv as the catalyst system. The present transformation is car... Transition Metals in Organic Synthesis, Part 97: Silver-Catalyzed Synthesis of Hexahalogenated 2,2 '-Bipyrroles [作者：MARTIN RENE; JAEGER ANNE; KNOELKER HANSJOACHIM,期刊：SYNLETT, 页码：2795-2798 , 文章类型： Article，,卷期：2011年-19] We describe the synthesis of three hexahalogenated 1,1'-dimethyl-2,2'-bipyrroles using an efficient silver(I)-catalyzed cyclization as key step. BF(3)center dot OEt(2)-Catalyzed Reaction of Donor-Acceptor Cyclobutanes with Terminal Alkynes: Single-Step Access to 2,3-Dihydrooxepines [作者：MACHIN BEN P; PAGENKOPF BRIAN L,期刊：SYNLETT, 页码：2799-2802 , 文章类型： Article，,卷期：2011年-19] In the presence of BF(3)center dot OEt(2) cyclobutane-1,1-diesters undergo a reaction with terminal alkynes to quickly access dihydro-oxepines. Stereoselective Total Synthesis of (-)-Isocladospolide B and Cladospolide B and C [作者：YADAV J S; MANDAL S S,期刊：SYNLETT, 页码：2803-2806 , 文章类型： Article，,卷期：2011年-19] The enantioselective synthesis of bioactive butenolides isocladospolide B, cladospolide B, and cladospolide-C has been achieved from (S)-propylene oxide. Of the three stereogenic centers, the C-4/C-5 vic-diol was obtaine... Ammonium Phosphorodithioate: A Mild, Easily Handled, Efficient, and Air-Stable Reagent for the Conversion of Amides into Thioamides [作者：KABOUDIN BABAK; MALEKZADEH LEILA,期刊：SYNLETT, 页码：2807-2810 , 文章类型： Article，,卷期：2011年-19] A simple, efficient, and new method has been developed for the synthesis of thioamides from amides. As described below, the reaction of a variety of aromatic and aliphatic amides in the presence of ammonium phosphorodith... Radical Addition of Silanes to Alkenes Followed by Oxidation [作者：PALFRAMAN MATTHEW J; PARSONS ANDREW F; JOHNSON PAUL,期刊：SYNLETT, 页码：2811-2814 , 文章类型： Article，,卷期：2011年-19] Phenyldimethylsilane and trichlorosilane are shown to undergo efficient radical hydrosilylation reactions, on reaction with various alkenes, using triethylborane as the initiator. Adducts from the trichlorosilane reactio... An Efficient Pyrrole Synthesis via Silaphenylmercuric Triflate Catalyzed Cyclization of Homopropargyl Azides [作者：YAMAMOTO HIROFUMI; SASAKI IKUO; MITSUTAKE MIZUHO; KARASUDANI AYUMI; IMAGAWA HIROSHI; NISHIZAWA MUGIO,期刊：SYNLETT, 页码：2815-2818 , 文章类型： Article，,卷期：2011年-19] A mixture of phenylmercuric acetate and trifluoromethanesulfonic acid or silica gel supported phenylmercuric trifluoromethanesulfonate (silaphenyl mercuric triflate) efficiently catalyzed the formation of pyrroles from h... Unique Salt Effect on the High Yield Synthesis of Acid-Labile Terpene Oxides Using Hydrogen Peroxide under Acidic Aqueous Conditions [作者：HACHIYA HOUJIN; KON YOSHIHIRO; ONO YUTAKA; TAKUMI KIYOSHI; SASAGAWA NAOKI; EZAKI YOICHIRO; SATO KAZUHIKO,期刊：SYNLETT, 页码：2819-2822 , 文章类型： Article，,卷期：2011年-19] Acid-labile epoxides such as alpha-pinene oxide are (effectively) synthesized in high yield from the epoxidation of terpenes with aqueous H(2)O(2) catalyzed by Na(2)WO(4), [Me(n-C(8)H(17))(3)N]HSO(4), and PhP(O)(OH)(2) i... A New Synthesis of trans-2,3-Diaryloxiranes and 2-(1H-Benzo[d][1,2,3]triazol-1-yl)-1-arylethanols via the Reactions of 1-Benzyl-3-methylbenzotriazolium Ylide with Aryl Aldehydes [作者：XIAO XIAOHUI; LIN DAQIN; TONG SHUITIAN; MO HAILAN,期刊：SYNLETT, 页码：2823-2826 , 文章类型： Article，,卷期：2011年-19] 1-Benzyl-3-methylbenzotriazolium ylide was formed by the reaction of 1-benzyl-3-methylbenzotriazolium iodide with t-BuOK. Subsequently it reacted with various aryl aldehydes to give the corresponding trans-2,3-diaryloxir... Phosphomolybdic Acid Catalyzed Synthesis of 1,2,4,5-Tetraoxanes [作者：YAN XING; CHEN JINGLEI; ZHU YUNTING; QIAO CHUNHUA,期刊：SYNLETT, 页码：2827-2830 , 文章类型： Article，,卷期：2011年-19] 1,1-Dihydroperoxides were converted into 1,2,4,5-tetraoxanes through condensation with the corresponding ketones in 36-91% yields using phosphomolybdic acid as the catalyst and anhydrous MgSO(4) as the water scavenger. Easy Access to (E)-beta-Ocimene [作者：YILDIZHAN SELMA; SCHULZ STEFAN,期刊：SYNLETT, 页码：2831-2833 , 文章类型： Article，,卷期：2011年-19] beta-Ocimene is one of the most common monoterpenes found in Nature, but a simple and reliable synthesis of the pure E-isomer has been missing. Here, we report a simple procedure involving a Grignard coupling as the key ... Stereoselective gamma-Olefination of Substituted Cyclobutenediones by Organocatalysis [作者：BEESU MALLESH; PERIASAMY MARIAPPAN,期刊：SYNLETT, 页码：2834-2840 , 文章类型： Article，,卷期：2011年-19] Methods are described for the stereoselective synthesis of alkenyl-substituted cyclobutenediones from alkyl-substituted cyclobutenediones and aldehydes in 70-91% yields using pyrrolidine as catalyst under mild reaction c... A Short Synthesis of a Trifold Orthogonally Protected, Novel Aminoazepanol Building Block [作者：WUERDEMANN MARTINA; CHRISTOFFERS JENS,期刊：SYNLETT, 页码：2841-2843 , 文章类型： Article，,卷期：2011年-19] Orthogonally protected cis-5-aminoazepan-3-ol derivatives were prepared in three steps from N-Boc allylic amine, acrolein, and N-benzylhydroxylamine with an intramolecular 1,3-dipolar cycloaddition as the key reaction.