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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21条记录   Recent Applications of Cyclopropane-Based Strategies to Natural Product Synthesis [作者：TANG PEI; QIN YONG,期刊：Synthesis, 页码：2969-2984 , 文章类型： Review，,卷期：2012年44-19] Activated cyclopropanes show versatile reactivity and are therefore powerful building blocks in organic chemistry and natural product synthesis. This review focuses on recent applications of cyclopropane-based approaches... On the Crossroad of Dienone Musks and Cassyrane: Synthesis and Olfactory Properties of New High-Impact Orris Odorants [作者：KRAFT PHILIP; AHLIN JOACHIM S E; BUECHEL MICHELLE; SUTTER PASCAL,期刊：Synthesis, 页码：2985-2998 , 文章类型： Article，,卷期：2012年44-19] While investigating the effect of the Cassyrane (rac-3/4) substitution pattern on the odor of dienones, (3E,5E)-5-tert-butylocta-3,5-dien-2-one (34) was discovered as an orris odorant with the lowest threshold reported s... Novel Synthetic Approach to Arylboronates via Rhodium-Catalyzed Carbon-Cyano Bond Cleavage of Nitriles [作者：KINUTA HIROTAKA; KITA YUSUKE; REMOND EMMANUELLE; TOBISU MAMORU; CHATANI NAOTO,期刊：Synthesis, 页码：2999-3002 , 文章类型： Article，,卷期：2012年44-19] A new rhodium-catalyzed method for preparing arylboronates from aryl cyanides through the cleavage of carbon-cyano bonds is described. This unprecedented transformation of nitriles allows the use of a cyano group as a bo... A Large-Scale Synthesis of alpha-Olefins and alpha,omega-Dienes [作者：KRAUS GEORGE A; RILEY SEAN,期刊：Synthesis, 页码：3003-3005 , 文章类型： Article，,卷期：2012年44-19] The decarbonylation of carboxylic acids or dicarboxylic acids in the presence of a palladium catalyst above 190 degrees C in the absence of a solvent constitutes a mild method for the large-scale synthesis of alpha-olefi... Dramatic Solvent Effect in the One-Pot Synthesis of Substituted Ureas Directly from Primary Alcohols Using the Combined Reagent of Iodobenzene Dichloride and Sodium Azide in Ethyl Acetate [作者：ZHANG CHI; WANG WEIKUN; HE TIAN,期刊：Synthesis, 页码：3006-3014 , 文章类型： Article，,卷期：2012年44-19] A highly efficient and practical method for the synthesis of substituted ureas directly from various primary alcohols and amines has been developed. This method is based on the finding that the use of ethyl acetate as th... An Efficient Route to Difluoromethylated Pyridines [作者：FUJIKAWA KENICHI; KOBAYASHI AKIRA; AMII HIDEKI,期刊：Synthesis, 页码：3015-3018 , 文章类型： Article，,卷期：2012年44-19] A convenient route to difluoromethylated pyridines was developed that involves copper-promoted cross-coupling of halopyridines with ethyl difluoro(trimethylsilyl)acetate and subsequent decarboxylation. Synthesis of 4-Aryl-4-methyl- and 4,4-Dimethyl-4H-pyrrolo[2,1-c][1,4]benzothiazines by an Easy Five-Step Sequence Starting from 2-Sulfanylbenzenamines [作者：KOBAYASHI KAZUHIRO; HYOTA AKANE; KONDO HIDEAKI; IMAOKA AYUMI,期刊：Synthesis, 页码：3019-3026 , 文章类型： Article，,卷期：2012年44-19] A convenient process for the synthesis of 4-aryl-4-methyl- and 4,4-dimethyl-4H-pyrrolo[2,1-c][1,4]benzothiazines has been developed. Cyclization of 1-{2-[1-aryl(or methyl)ethenylsulfanyl]phenyl} pyrroles, which are readi... Ligand-Free Copper Powder Catalyzed Direct Coupling Reaction of Heterocyclic C-H Bonds and Aryl Halides [作者：HAN YING; WANG XIAOHU; WANG XIAOWEI; LV LIANGZHONG; DIAO GUOWANG; YUAN YU,期刊：Synthesis, 页码：3027-3032 , 文章类型： Article，,卷期：2012年44-19] The catalytic coupling reaction of aryl halides and heterocycles has been developed using copper powder as the catalyst in N,N-dimethylacetamide. The procedure is experimentally simple and free from the addition of exter... Cycloaddition of N-Sulfonylpyridinium Imides and Isoquinolinium Imides with Acetylenedicarboxylates: A Practical Synthesis of Pyrazolo[1,5-alpha]pyridine and Pyrazolo[5,1-alpha]isoquinoline Derivatives [作者：WU CHUNRUI; WANG QINGBO; ZHAO JINGJING; LI PAN; SHI FENG,期刊：Synthesis, 页码：3033-3042 , 文章类型： Article，,卷期：2012年44-19] With the introduction of a sulfonyl group on the exocyclic nitrogen, pyridinium imides can undergo smooth [3+2] cycloaddition with electron-deficient alkynes to afford pyrazolo[1,5-alpha]pyridine derivatives after elimin... A Convergent Synthesis of Chiral Diaminopimelic Acid Derived Substrates for Mycobacterial L, D-Transpeptidases [作者：KASTRINSKY DAVID B; KUMAR PRADEEP; MARRINER GWENDOLYN A; BARRY CLIFTON E III,期刊：Synthesis, 页码：3043-3048 , 文章类型： Article，,卷期：2012年44-19] Amidated and deamidated chiral DAP-D-Ala analogues were prepared by olefin cross-metathesis of 12 with modified D-allylglycines using Grubbs' 2nd generation catalyst. Hydrogenation and deprotection of these precursors pr... Preparation of Substituted Benzimidazoles and Imidazopyridines Using 2,2,2-Trichloroethyl Imidates [作者：CARON STEPHANE; JONES BRIAN P; WEI LULIN,期刊：Synthesis, 页码：3049-3054 , 文章类型： Article，,卷期：2012年44-19] The preparation of benzimidazoles and imidazopyridines has been achieved under mild conditions using 2,2,2-trichloroethyl imidates as the acylating agents. The reactions proceed smoothly in isopropyl alcohol at 70 degree... Efficient Synthesis of 3,7-Diaryl-1,4-dihydro[1,2,4]triazolo[5,1-c][1,2,4]triazines [作者：AIWALE SACHIN T; DALLAVALLE SABRINA,期刊：Synthesis, 页码：3055-3058 , 文章类型： Article，,卷期：2012年44-19] An efficient and versatile protocol for the synthesis of novel 3,7-diaryl-substituted 1,4-dihydro[1,2,4] triazolo[5,1-c][1,2,4]triazines is described, via alkylation/cyclization of 3,5-dibromo-1H-1,2,4-triazole, followed... One-Pot Synthesis of 5-Acyl-2-amino-1,3,4-thiadiazoles [作者：LINDSTROM JOHAN; HALLBERG JESPER,期刊：Synthesis, 页码：3059-3062 , 文章类型： Article，,卷期：2012年44-19] A novel two-step one-pot synthesis of 5-acyl-2-amino-1,3,4-thiadiazoles by the reaction of acyl chlorides with N-isocyanoiminotriphenylphosphorane in the presence of KSCN is described. It was found that THF and KSCN are ... An Approach for Simultaneous Synthesis of cis- and trans-3-Substituted Proline-Glutamic Acid Chimeras [作者：MAITY JYOTIRMOY; SAHA PINAKI; GERLING ULLA I M; LENTZ DIETER; KOKSCH BEATE,期刊：Synthesis, 页码：3063-3070 , 文章类型： Article，,卷期：2012年44-19] Synthesis of cis- and trans-3-substituted proline-glutamic acid chimeras with suitable protection for peptide synthesis through Fmoc-strategy was accomplished in six steps from benzyl (2S)-4-oxo-1-(9-phenyl-9H-fluoren-9-... Synthesis of New Tetrazol-5-ylalkenyl Derivatives of Ferrocene by Wittig Olefination [作者：GRODNER JACEK; SALACINSKI TOMASZ,期刊：Synthesis, 页码：3071-3076 , 文章类型： Article，,卷期：2012年44-19] An effective and straightforward method has been developed for the synthesis of new olefinic derivatives of ferrocene that contain tetrazole rings. The method is based on condensation of 1-formyl-, 1,1'- diformyl-, or (E... Studies Directed Towards the Synthesis of Bryostatin: A Stereoselective Synthesis of the C7-C16 Fragment [作者：YADAV JHILLU S; ARAVIND SEEMA; GUNDLURU MAHESH KUMAR; REDDY BASI V SUBBA,期刊：Synthesis, 页码：3077-3084 , 文章类型： Article，,卷期：2012年44-19] A stereocontrolled asymmetric synthesis of the C7-C16 fragment of bryostatins is described. The key steps involved were a Jacobsen's hydrolytic kinetic resolution and a Reformatsky reaction to build the C11-C16 fragment....