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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35条记录   Mechanochemical Diels-Alder Cycloaddition Reactions for Straightforward Synthesis of endo-Norbornene Derivatives [作者：ZHANG ZE; PENG ZHIWEI; HAO MINGFENG; GAO JIANGANG,期刊：SYNLETT, 页码：2895-2898 , 文章类型： Article，,卷期：2010年-19] Under mechanochemical milling conditions, Diels-Alder cycloaddition of cyclopentadiene with maleic anhydride and maleimide derivatives proceeded very smoothly, affording endo-norbornenes exclusively in quantitative yield... Syntheses of N-Alkylated Carbazolones via Pd(OAc)(2)-Mediated Intramolecular Coupling of N-Substituted 3-(Arylamino)cyclohex-2-enones [作者：BI WENYING; YUN XILIU; FAN YANFENG; QI XIUXIANG; DU YUNFEI; HUANG JIANHUI,期刊：SYNLETT, 页码：2899-2904 , 文章类型： Article，,卷期：2010年-19] A variety of functionalized N-alkylated carbazolones were prepared via N-alkylation of 3-(arylamino) cyclohex-2-enones followed by an intramolecular oxidative coupling mediated by Pd(OAc)(2) under an oxygen atmosphere. T... Organic Reactions in Water: A Practical and Convenient Method for the N-Formylation of Amines in Water [作者：KABOUDIN BABAK; KHODAMORADY MINOO,期刊：SYNLETT, 页码：2905-2907 , 文章类型： Article，,卷期：2010年-19] A simple, efficient, scaleable process has been developed for the N-formylation amines in water. Treatment of amines with triethyl orthoformate in water at reflux under neutral conditions without any additives gives the ... Silica-Supported KHSO4: An Efficient System for Activation of Aromatic Terminal Olefins [作者：DAS RAM NATH; SARMA KULADIP; PATHAK MADAN GOPAL; GOSWAMI AMRIT,期刊：SYNLETT, 页码：2908-2912 , 文章类型： Article，,卷期：2010年-19] Potassium hydrogen sulfate adsorbed on chromatography-grade silica gel activates electron-rich aromatic terminal olefins towards nucleophilic attack at the benzylic position by alcohols. Temperature plays a crucial role ... Polymer-Supported alpha-Aminonitriles: Alkylation Reactions and Carbonyl Compound Cleavage [作者：BEAUFORTDROAL VIRGINIE; PEREIRA ELISABETH; VERGNE FABRICE; AITKEN DAVID J,期刊：SYNLETT, 页码：2913-2917 , 文章类型： Article，,卷期：2010年-19] A polystyrene-supported alpha-aminonitrile has been prepared and its successive mono-and dialkylations achieved. Complementary procedures allow cleavage of the alkylated moities in either carbonyl or acetal form. New Methodology for the Synthesis of 3-Substituted Coumarins via Palladium-Catalyzed Site-Selective Cross-Coupling Reactions [作者：MARTINS SERGIO; BRANCO PAULA S; DE LA TORRE MARIA C; SIERRA MIGUEL A; PEREIRA ANTONIO,期刊：SYNLETT, 页码：2918-2922 , 文章类型： Article，,卷期：2010年-19] A particularly useful, easy, and concise synthesis of diversified 3-aryl coumarin was achieved using Heck coupling reactions between coumarin and aryliodides. The introduction of the aryl moiety occurred regioselective a... A Concise Synthesis of Bengamide E and Analogues via E-Selective Cross-Metathesis Olefination [作者：ALAM SAFIUL; DHIMANE HAMID,期刊：SYNLETT, 页码：2923-2927 , 文章类型： Article，,卷期：2010年-19] A modular, eight-step synthesis of bengamide E and six analogues from a common chiral pool has been developed. The key step in this approach is a cross-metathesis coupling of various commercial terminal olefins and a com... Unprecedented Elimination of Conjugated Phenylthioether Groups by Low-Valent Titanocene [作者：RIBEIRO NIGEL; FETZER LUDIVINE; STREIFF STEPHANE; DESAUBRY LAURENT,期刊：SYNLETT, 页码：2928-2930 , 文章类型： Article，,卷期：2010年-19] The first thioether elimination reaction utilizing a low-valent titanocene has been discovered. This reaction occurs under mild conditions and affords stereospecifically a variety of dienes and styrenes. Our data suggest... Olefin Cross-Metathesis with 3-Nitropropene [作者：WDOWIK TOMASZ; SAMOJLOWICZ CEZARY; JAWICZUK MAGDALENA; ZARECKI ANDRZEJ; GRELA KAROL,期刊：SYNLETT, 页码：2931-2935 , 文章类型： Article，,卷期：2010年-19] The synthesis of functionalized allylic nitro compounds via cross-metathesis with a new cross-metathesis partner, 3-nitropropene, is reported. The reaction of various terminal olefins with 3-nitropropene, promoted by 5 m... Csp(3)-Csp(2) Palladium-Catalyzed Cross-Coupling Reaction of Trialkylbismuth Reagents with Aryl, Heteroaryl, and Vinyl Halides and Triflates [作者：GAGNON ALEXANDRE; ALBERT VINCENT; DUPLESSIS MARTIN,期刊：SYNLETT, 页码：2936-2940 , 文章类型： Article，,卷期：2010年-19] The palladium-catalyzed cross-coupling reaction of trialkylbismuth reagents with aryl and heteroaryl halides and triflates is reported. Moderate to good yields were obtained for the transfer of primary alkyl groups. The ... An Improved Method for the Preparation of Protected (R)-2-Methylcysteine: Solution-Phase Synthesis of a Glutathione Analogue [作者：MASTERSON DOUGLAS S; KEDROWSKI BRANT L; BLAIR AMANDA,期刊：SYNLETT, 页码：2941-2943 , 文章类型： Article，,卷期：2010年-19] A synthetic method for the preparation of (R)-2-methylcysteine that dramatically improves the overall yield of this important unnatural amino acid has been refined. The key steps in the preparation of (R)-2-methylcystein... First Stereoselective Synthesis of Penicillenol A(1) via Novel O- to C-Acyl Rearrangement of O-Acyltetramic Acid [作者：SENGOKU TETSUYA; WIERZEJSKA JOLANTA; TAKAHASHI MASAKI; YODA HIDEMI,期刊：SYNLETT, 页码：2944-2946 , 文章类型： Article，,卷期：2010年-19] The first stereoselective synthesis of penicillenol A(1) has been accomplished in nine steps from L-threonine. The 3-acyltetramic acid core of penicillenol A(1) was constructed by successful O- to C-acyl rearrangement. Regioselective Alkylation of Catechols via Mitsunobu Reactions [作者：WANG XIALONG; JU TINGTING; LI XIAODONG; CAO XIAOPING,期刊：SYNLETT, 页码：2947-2949 , 文章类型： Article，,卷期：2010年-19] A mild and efficient Mitsunobu protocol for the regioselective alkylation of catechols such as 3,4-dihydroxybenzaldehyde and methyl 3,4-dihydroxybenzoate is described. The para-alkylation products could be easily prepare... An Unexpected Access to a New Sphingoid Base Containing a Vinyl Sulfide Unit [作者：NIEVES INGRID; GARRIDO MARIA; LUIS ABAD JOSE; DELGADO ANTONIO,期刊：SYNLETT, 页码：2950-2952 , 文章类型： Article，,卷期：2010年-19] An unexpected access to a new sphingoid base containing a vinyl sulfide unit is described. The process involves the 'one-pot' regioselective opening of an epoxide with a thiolate, followed by intramolecular acyl transfer... 2,2 ', 6-Tribromobiphenyl via Transition-Metal-Free ARYNE Coupling: A Valuable Tool in the Synthesis of Biphenyls [作者：BONNAFOUX LAURENCE; COLOBERT FRANCOISE; LEROUX FREDERIC R,期刊：SYNLETT, 页码：2953-2955 , 文章类型： Article，,卷期：2010年-19] We report a high yielding synthesis of 2,2`,6-tribromobiphenyl (TBBP) via aryne coupling, and we discuss the fundamental influence of the reaction conditions. Direct Preparation of Heteroaromatic Compounds from Alkenes [作者：DONOHOE TIMOTHY J; KABESHOV MIKHAIL A; RATHI AKSHAT H; SMITH IAN E D,期刊：SYNLETT, 页码：2956-2958 , 文章类型： Article，,卷期：2010年-19] A series of aromatic heterocycles, thiazoles, imidazoles, and dimethoxyindoles, can be synthesised directly from alkenes via a ketoiodination-cyclisation protocol. The alkene starting materials are themselves easily acce...