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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   A Highly Efficient Conversion of a Simple Derivative of the Amino Acid Proline into a Nearly Enantiomerically Pure N-Protected Allyl Amine: Use of Thionyl Chloride to Promote the Peterson Olefination [作者：WEI GUOQING; COHEN THEODORE,期刊：SYNLETT, 页码：2697-2700 , 文章类型： Article，,卷期：2011年-18] A novel two-step conversion of an N-Boc methyl ester of the natural amino acid proline into highly enantioenriched N-Boc 2-vinylpyrrolidine is described. Key steps include (1) an SNi displacement of a methoxy group of th... Swern Oxidation of Alcohols with Ion-Supported Methyl Sulfoxide and Oxalyl Chloride [作者：TSUCHIYA DAISUKE; MORIYAMA KATSUHIKO; TOGO HIDEO,期刊：SYNLETT, 页码：2701-2704 , 文章类型： Article，,卷期：2011年-18] The oxidation of primary and secondary alcohols with ion-supported methyl sulfoxide and oxalyl chloride in the presence of triethylamine in dichloromethane efficiently proceeded to give the corresponding aldehydes and ke... TiCl(4)-Promoted Mukaiyama Aldol Reaction of Fluorinated Silyl Enolates for the Construction of a Quaternary Carbon Center [作者：WANG WENGUI; CHEN QINGYUN; GUO YONG,期刊：SYNLETT, 页码：2705-2708 , 文章类型： Article，,卷期：2011年-18] A method for the preparation of alpha-fluoro-beta-hydroxyphenones from Mukaiyama aldol reactions of various aldehydes and fluorinated silyl enolates was reported. The reaction was promoted by TiCl(4) and afforded the des... Short Synthesis of (+)-1-Deoxynojirimycin via a Diastereoselective Reductive Coupling of Alkyne and alpha-Chiral Aldehyde [作者：ZHOU BING; TANG HUANYU; FENG HUIJIN; LI YUANCHAO,期刊：SYNLETT, 页码：2709-2712 , 文章类型： Article，,卷期：2011年-18] A short, highly diastereoselective synthesis of (+)-1-deoxynojirimycin from readily available L-isoserine with overall yield of 32.0% in eight steps is described. The key step includes a diastereoselective syn-coupling r... Homogeneous Silver(I) Salts and Heterogeneous Ag(3)PW(12)O(40)-Catalyzed Intermolecular Allylation of Arenes with Allylic Alcohols [作者：CHEN GUOQIANG; XU ZHENJIANG; CHAN SHARON LAIFUNG; ZHOU CONGYING; CHE CHIMING,期刊：SYNLETT, 页码：2713-2718 , 文章类型： Article，,卷期：2011年-18] AgOTf is an effective catalyst for intermolecular allylation of aromatic and heteroaromatic compounds with allylic alcohols affording allylated arenes in up to 99% yields. Heterogeneous allylation of arenes catalyzed by ... Fragment-Based Reaction Discovery of Non-Ene-Type Carbon-Carbon Bond-Forming Reactions: Catalytic Asymmetric Oxetane Synthesis by Screening Olefinic Reactants without Allylic Hydrogen [作者：MIKAMI KOICHI; AIKAWA KOHSUKE; AIDA JUNPEI,期刊：SYNLETT, 页码：2719-2724 , 文章类型： Article，,卷期：2011年-18] Through fragment-based reaction discovery, catalytic asymmetric [2+2] cycloaddition was found to produce oxetanes from trifluoropyruvate and olefinic reactants without allylic hydrogen. This non-ene-type carbon-carbon bo... Enantioselective Access to 3-Methylene-1H-indanol through Asymmetric Domino Allylstannylation-Heck Reaction [作者：SCHUETTE JUTTA; YE SHUTE; SCHMALZ HANSGUENTHER,期刊：SYNLETT, 页码：2725-2729 , 文章类型： Article，,卷期：2011年-18] By screening various chiral P,P-ligands in the palladium-catalyzed reaction of ortho-iodobenzaldehyde with allyl tributylstannane, a suitable ligand (Taniaphos) was identified that affords 3-methylene-1-indanol with an e... Polyethylene Glycol (PEG-400) as an Efficient and Recyclable Reaction Medium for the One-Pot Synthesis of N-Substituted Azepines under Catalyst-Free Conditions [作者：MALLEPALLI RAGHU; YERAMANCHI LINGAPPA; BANTU RAJASHAKER; NAGARAPU LINGAIAH,期刊：SYNLETT, 页码：2730-2732 , 文章类型： Article，,卷期：2011年-18] Polyethylene glycol (PEG) was found to be an inexpensive nontoxic and effective medium for the one-pot synthesis of N-substituted azepines under catalyst-free conditions in excellent yields. Environmental acceptability, ... Palladium-Catalyzed Intramolecular Hydroarylation of 2-Bromobenzyl Propargyl Ethers: A New Access to Exocyclic Isochromans [作者：NANDAKUMAR AVANASHIAPPAN; BALAKRISHNAN KRISHNAMOORTHY; PERUMAL PARAMASIVAN THIRUMALAI,期刊：SYNLETT, 页码：2733-2739 , 文章类型： Article，,卷期：2011年-18] An efficient, stereo-and regioselective palladium-catalyzed 6-exo-dig intramolecular hydroarylation of propargyl ethers which provides a concise access to functionalized isochromans in high yields has been developed. A w... 1,6-Conjugated Addition of Nitromethane to (E)-2-Styrylchromones: A New Synthesis of Novel 2-Substituted 4-Arylpyrrole Derivatives [作者：SILVA EDUARDA M P; SILVA ARTUR M S; CAVALEIRO JOSE A S,期刊：SYNLETT, 页码：2740-2744 , 文章类型： Article，,卷期：2011年-18] The 1,6-conjugate addition of nitromethane to (E)-2-styrylchromones were achieved, in moderate to good yields, by using DBU as organocatalyst. Reduction studies on the 2-(2-aryl-3-nitropropyl) chromone adducts formed sur... Organocatalytic Asymmetric Wittig Reactions: Generation of Enantioenriched Axially Chiral Olefins Breaking a Symmetry Plane [作者：GRAMIGNA LUCIA; DUCE SARA; FILIPPINI GIACOMO; FOCHI MARIAFRANCESCA; FRANCHINI MAURO COMES; BERNARDI LUCA,期刊：SYNLETT, 页码：2745-2749 , 文章类型： Article，,卷期：2011年-18] The first catalytic asymmetric Wittig reaction is presented. Hydrogen-bond donors catalyze the [2+2] cycloaddition reaction between stabilized phosphorus ylides and 4-substituted cyclohexanones, breaking their symmetry p... A Mild and Efficient Synthesis of Aryl Sulfones from Aryl Chlorides and Sulfinic Acid Salts Using Microwave Heating [作者：YUAN YANQIN; GUO SHENGRONG,期刊：SYNLETT, 页码：2750-2756 , 文章类型： Article，,卷期：2011年-18] The CuCl-catalyzed coupling of aryl chlorides and sulfinic acid salts provides a simple and extremely efficient route to unsymmetrical aryl sulfones in high to excellent yields under microwave irradiation within 3-30 min... The Hieber Anion [Fe(CO)(3)(NO)](-) [作者：KLEIN JOHANNES E M N,期刊：SYNLETT, 页码：2757-2758 , 文章类型： Editorial Material，,卷期：2011年-18] (A) Allylic Substitutions with C-Nucleophiles: Building on early work by Roustan et al.(3a) and Xu et al.(3b) an efficient allylic substitution using carbon-centered nucleophiles was developed. In a first account the ben... Sodium Sulfide [作者：MA FEIPING,期刊：SYNLETT, 页码：2759-2760 , 文章类型： Editorial Material，,卷期：2011年-18] (A) Thionation of Carbonyl Compounds: Salama and co-workers have found that a combination of tetrachlorosilane and sodium sulfide in acetonitrile is an efficient thionating reagent for aromatic aldehydes to afford the co... Untitled [作者：ZANDA MATTEO,期刊：SYNLETT, 页码：A101-A101 , 文章类型： Editorial Material，,卷期：2011年-18]