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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20条记录   3-Acetylcoumarin as a Practical Ligand for Copper-Catalyzed C-N Coupling Reactions at Room Temperature [作者：TAO CHUANZHOU; LIU WEIWEI; SUN JIYOU; CAO ZHILING; LI HUI; ZHANG YINGFEN,期刊：Synthesis, 页码：1280-1284 , 文章类型： Article，,卷期：2010年-8] The use of coumarin-based ligands was examined in copper-catalyzed C-N cross-coupling reactions. It was found that 3-acetylcoumarin constituted a new, practical ligand for the copper-catalyzed N-arylation of aliphatic am... Efficient Synthesis of Azaspirodienones by Microwave-Assisted Radical Spirocyclization of Xanthate-Containing Ugi Adducts [作者：GAMEZMONTANO ROCIO; IBARRARIVERA TANNYA; EL KAIM LAURENT; MIRANDA LUIS D,期刊：Synthesis, 页码：1285-1290 , 文章类型： Article，,卷期：2010年-8] The sequential use of an Ugi reaction and radical spirocyclization under microwave irradiation conditions is described. The process provides rapid access to spirodienone lactams. A Simple and Practical Approach to the Dibenzo[c,f] thiazolo[3,2-a]azepines: A Novel Fused Tetracyclic Azepine System [作者：PALMA ALIRIO; GALEANO NELSON; BAHSAS ALI,期刊：Synthesis, 页码：1291-1302 , 文章类型： Article，,卷期：2010年-8] A novel set of functionalized dibenzo[c,f]thiazolo[3,2-a]azepines, which is a new ring system, were successfully synthesized in a four-step protocol starting from readily available substituted N-allyl-N-benzylanilines. T... A Synthetic Route to Fully Substituted Chiral Cyclopentylamine Derivatives: Precursors of Carbanucleosides [作者：GHOSH RAMPRASAD; MAITY JOY KRISHNA; DREW MICHAEL G B; ACHARI BASUDEB; MANDAL SUKHENDU B,期刊：Synthesis, 页码：1303-1310 , 文章类型： Article，,卷期：2010年-8] Removal of silyl protection from D-glucose derived substrate 6 afforded 7, which upon acetonide deprotection followed by reaction with N-benzylhydroxylamine furnished two isomeric isoxazolidinocyclopentane derivatives vi... A New Synthesis of Functionalized 2,2 '-Biimidazoles [作者：STIPPICH KEVIN; KRETSCHMER ROBERT; BECKERT RAINER; GOERLS HELMAR,期刊：Synthesis, 页码：1311-1314 , 文章类型： Article，,卷期：2010年-8] A new two-step synthesis of N,N'-disubstituted 2,2'-biimidazoles from bisimidoyl chlorides is reported. The bisimidoyl chlorides react smoothly with (2,2-dimethoxyethyl) amine to give bisamidines that are subsequently cy... Concise Synthesis of Pyrimido-azocine Derivatives via Aza-Claisen Rearrangement and Intramolecular Heck Reaction [作者：MAJUMDAR K C; MONDAL SHOVAN; GHOSH DEBANKAN; CHATTOPADHYAY BUDDHADEB,期刊：Synthesis, 页码：1315-1320 , 文章类型： Article，,卷期：2010年-8] An expedient approach involving BF3 center dot OEt2-catalyzed aza-Claisen rearrangement and palladium-catalyzed intramolecular Heck reaction for the synthesis of pyrimidine-fused azocine derivatives is described. The mec... Cobalt-Catalyzed Generation of 1,4-Dienes as Synthons for 1,3-Dicarbonyl Compounds and Their Application in Natural Product Syntheses [作者：HILT GERHARD; ARNDT MARION; WESKE DAMIAN F,期刊：Synthesis, 页码：1321-1324 , 文章类型： Article，,卷期：2010年-8] The cobalt-catalyzed 1,4-hydrovinylation of alkenes with 1,3-dienes and the cobalt-catalyzed Diels-Alder reaction of alkynes with 1,3-dienes lead to acyclic and cyclic 1,4-dienes, respectively. These products can be tran... Highly Efficient Cs2CO3-Catalyzed 1,4-Addition of Me3SiCN to Enones with Water as the Additive [作者：YANG JINGYA; SHEN YONGBIN; CHEN FUXUE,期刊：Synthesis, 页码：1325-1333 , 文章类型： Article，,卷期：2010年-8] A facile and efficient 1,4-addition of Me3SiCN to enones has been achieved with perfect regioselectivity using Cs2CO3 as catalyst. Thus, with 0.5 mol% of Cs2CO3 and 4 equivalents of H2O as the additive excellent yields (... Straightforward Access to alpha-Methylamines through Cross-Metathesis [作者：POULHES FLORENT; SYLVAIN REMY; PERFETTI PATRICIA; BERTRAND MICHELE P; GIL GERARD; GASTALDI STEPHANE,期刊：Synthesis, 页码：1334-1338 , 文章类型： Article，,卷期：2010年-8] A two-step procedure involving cross-metathesis and reductive amination enables easy access to alpha-methylamines and alpha,alpha'-dimethyldiamines from a wide variety of terminal olefins. Microwave-Assisted Synthesis of Nitro-Substituted Tetrahydropyridoazepines [作者：SCHULTZ THOMAS; TURNER SEAN C; BRAJE WILFRIED M,期刊：Synthesis, 页码：1339-1343 , 文章类型： Article，,卷期：2010年-8] The microwave-assisted condensation of azepan-4-ones with 3,5-dinitro-1-methylpyridin-2-one in the presence of ammonia was found to be a highly efficient method for the synthesis of nitro-substituted tetrahydropyridoazep... Acid-Induced Rearrangement Reactions of alpha-Hydroxy-1,3-dithianes [作者：KROHN KARSTEN; CLUDIUSBRANDT STEPHAN,期刊：Synthesis, 页码：1344-1348 , 文章类型： Article，,卷期：2010年-8] Secondary benzylic or aliphatic alpha-hydroxydithianes 1a-c rearrange to alpha-thioketones when treated with acid. Related tertiary alcohols 1d-g eliminate to dithioketene ketals (e. g., 2d), which are ring-opened to thi... A Straightforward Approach to Substituted 2-(Hydroxymethyl)-2,3-dihydrofuro[2,3-b] pyridines and 3-Hydroxy-3,4-dihydro-2H-pyrano[ 2,3-b] pyridines [作者：HAJBI YOUSSEF; SUZENET FRANCK; KHOUILI MOSTAFA; LAZAR SAID; GUILLAUMET GERALD,期刊：Synthesis, 页码：1349-1355 , 文章类型： Article，,卷期：2010年-8] An efficient route to 2-(hydroxymethyl)-2,3-dihydrofuro[ 2,3-b]pyridines and 3-hydroxy-3,4-dihydro-2H-pyrano[2,3b]pyridines is reported. The strategy is based on an intramolecular inverse electron demand Diels-Alder reac... Synthesis of Some Novel 2-Aryl- Substituted 2,3-Dihydroquinazolin-4(1H)-ones under Solvent-Free Conditions Using MCM-41-SO3H as a Highly Efficient Sulfonic Acid [作者：ROSTAMIZADEH SHAHNAZ; AMANI ALI MOHAMMAD; MAHDAVINIA GHOLAM HOSSEIN; SEPEHRIAN HAMID; EBRAHIMI SAMIRA,期刊：Synthesis, 页码：1356-1360 , 文章类型： Article，,卷期：2010年-8] MCM-41-SO3H, ordered mesoporous silica material MCM-41 with covalently anchored sulfonic acid groups located inside the mesochannels, was used as an acid catalyst for the rapid and 'green' synthesis of 2,3-dihydroquinazo... Methylene Meldrum's Acid Derivatives of Indoxyl and Their Cyclization Reactions under Flash Vacuum Pyrolysis Conditions [作者：GAYWOOD ALEXANDER P; MCNAB HAMISH,期刊：Synthesis, 页码：1361-1364 , 文章类型： Article，,卷期：2010年-8] Pure indoxyl can be obtained in 75% yield by flash vacuum pyrolysis (FVP) of 2'-azidoacetophenone at 650 degrees C. Reaction of indoxyl with methoxymethylene Meldrum's acid takes place at the 1-position, and FVP of the r... New Synthetic Methodology for Construction of the 1,3,4,5-Tetrahydro-2H-1,3-benzodiazepin-2-one Skeleton [作者：DENGIZ CAGATAY; OZCAN SEVIL; SAHIN ERTAN; BALCI METIN,期刊：Synthesis, 页码：1365-1370 , 文章类型： Article，,卷期：2010年-8] We hereby report a new synthetic methodology for construction of the 1,3,4,5-tetrahydro-2H-1,3-benzodiazepin-2-one skeleton. 2-(2-Carboxyethyl)benzoic acid was converted into the corresponding bis(acyl azide). Curtius re... Lateral Lithiation of N '-(2-Methylbenzyl)-N,N-dimethylurea and N-(2-Methylbenzyl)pivalamide: Synthesis of Tetrahydroisoquinolines [作者：SMITH KEITH; ELHITI GAMAL A; HEGAZY AMANY S,期刊：Synthesis, 页码：1371-1380 , 文章类型： Article，,卷期：2010年-8] Lithiation of N'-(2-methylbenzyl)-N,N-dimethylurea and N-(2-methylbenzyl) pivalamide with two mole equivalents of tertbutyllithium at -78 degrees C takes place on the nitrogen and on the methyl group at position 2. The l...