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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33条记录   Scaffolding Catalysis: Expanding the Repertoire of Bifunctional Catalysts [作者：TAN KIAN L; SUN XIXI; WORTHY AMANDA D,期刊：SYNLETT, 页码：321-325 , 文章类型： Article，,卷期：2012年-3] Inducing an intramolecular reaction is a powerful means of accelerating reactions. Though this mechanism of catalysis is common in enzymes, it is underutilized in synthetic catalysts. This article outlines our group's re... N-Heteropentacenes and N-Heteropentacenequinones: From Molecules to Semiconductors [作者：MIAO QIAN,期刊：SYNLETT, 页码：326-336 , 文章类型： Article，,卷期：2012年-3] N-Heteropentacenes and their derivatives have been recently discovered as a new family of organic semiconductors exhibiting high performance in organic field effect transistors (OFETs). Introducing nitrogen atoms to the ... The Wieland-Miescher Ketone: A Journey from Organocatalysis to Natural Product Synthesis [作者：BRADSHAW BEN; BONJOCH JOSEP,期刊：SYNLETT, 页码：337-356 , 文章类型： Article，,卷期：2012年-3] The Hajos-Parrish-Eder-Sauer-Wiechert reaction can be considered as the origin of asymmetric organocatalysis, giving rise to the Wieland-Miescher ketone 1 (WMK), a versatile building block. Although 40 years have passed ... Recent Advances in Transition-Metal-Catalyzed Esterification [作者：LUO FANG; PAN CHANGDUO; CHENG JIANG,期刊：SYNLETT, 页码：357-366 , 文章类型： Article，,卷期：2012年-3] In this account, we summarized our recent progress in transition-metal-catalyzed esterification via different pathways, including lactonization, Chan-Lam reaction, oxidative esterification and C-H functionalization. Novel Photolabile Protecting Group for Phosphate Compounds [作者：ZHANG YOULAI; TANIMOTO HIROKI; NISHIYAMA YASUHIRO; MORIMOTO TSUMORU; KAKIUCHI KIYOMI,期刊：SYNLETT, 页码：367-370 , 文章类型： Article，,卷期：2012年-3] A novel photolabile protecting group, thiochromone S,S-dioxide, containing the diazomethyl group for protection of phosphate derivatives is described. Deprotection of the successfully protected phosphate derivatives proc... Total Synthesis of Altenusin and Alterlactone [作者：CUDAJ JUDITH; PODLECH JOACHIM,期刊：SYNLETT, 页码：371-374 , 文章类型： Article，,卷期：2012年-3] The resorcylic lactone alterlactone, a mycotoxin produced by alternaria sp., was synthesized for the first time. The total synthesis was achieved in nine steps with 69% yield starting with acetal-protected phloroglucinic... Palladium-Mediated Highly Regio- and Stereoselective Intermolecular beta-Arylation on Allylic Alcohols: Synthesis of Functionalized Allylic Alcohols [作者：KRISHNA J; REDDY A GOPI KRISHNA; RAMULU B VENKAT; MAHENDAR L; SATYANARAYANA G,期刊：SYNLETT, 页码：375-380 , 文章类型： Article，,卷期：2012年-3] An efficient and highly regio- and stereoselctive Pd-catalyzed beta-arylation method for the formation of beta-aryl allylic alcohols, employing aryl iodides, 1-bromo-2-iodobenzenes, and 2-bromobezaldehydes as coupling pa... Reductive Ring Cleavage of Nonconjugated Delta(2)-Isoxazolines to beta-Hydroxy Ketones with Aluminum and Copper(II) Chloride [作者：KARPAVICIENE IEVA; LAPINSKAITE RINGAILE; BRUKSTUS ALGIRDAS; CIKOTIENE INGA,期刊：SYNLETT, 页码：381-384 , 文章类型： Article，,卷期：2012年-3] A facile, economic, and efficient protocol for the reduction of nonconjugated Delta(2)-isoxazolines to the corresponding beta-hydroxy ketones using Al/CuCl2 as the reducing agent has been developed. The method is both ra... New Approach to Flavonols via Base-Mediated Cyclization: Total Synthesis of 3,5,6,7-Tetramethoxyflavone [作者：KRAUS GEORGE A; GUPTA VINAYAK; KEMPEMA AARON,期刊：SYNLETT, 页码：385-388 , 文章类型： Article，,卷期：2012年-3] A new methodology for the synthesis of flavonols is described. The key step is a base-mediated cyclization-isomerization-elimination reaction which results in the formation of flavonols. Using this strategy, three flavon... Synthesis of Aryl-Substituted 1,4-Dihydroquinolines by [4+2] Cycloaddition of Benzyne with 1-Azadienes [作者：STOKES SEAN; BEKKAM MARKONDAIAH; RUPP MADELINE; MEAD KEITH T,期刊：SYNLETT, 页码：389-392 , 文章类型： Article，,卷期：2012年-3] The synthesis of aryl-substituted 1,4-dihydroquinolines can be achieved using a [4+2] cycloaddition between benzyne and various aryl-substituted 1-azadienes. The conditions are tolerated by N-aryl-, alkyl-, tosyl-, and t... Rh(I)-Catalyzed Cyclocarbonylation of Enynes with Glyceraldehyde: An Available Carbonyl Source Derived from Sugar Alcohols [作者：IKEDA KEIICHI; MORIMOTO TSUMORU; TSUMAGARI TAKAYUKI; TANIMOTO HIROKI; NISHIYAMA YASUHIRO; KAKIUCHI KIYOMI,期刊：SYNLETT, 页码：393-396 , 文章类型： Article，,卷期：2012年-3] Catalytic cyclocarbonylation reactions using a glyceraldehyde derivative as a carbonyl source are described. The rhodium(I)-catalyzed reaction of enynes with glyceraldehyde acetonide gave bicyclic cyclopentenones as the ... Synthetic Study of Versipelostatin A: Synthesis of the Spirotetronate Unit Starting from Pulegone [作者：KATSUTA RYO; ARAI KAZUYA; YAJIMA ARATA; NUKADA TOMOO,期刊：SYNLETT, 页码：397-400 , 文章类型： Article，,卷期：2012年-3] The synthesis of the spirotetronate unit of versipelostatin A, a down-regulator of molecular chaperone GRP78, was achieved in ten steps starting from pulegone, via the Johnson-Claisen rearrangement. A model study of the ... Abnormal and Direct para-Trifluoroacetylation of Branched Alkyl Phenyl Ketones by Magnesium-Promoted Reductive Aromatic Substitution [作者：MAEKAWA HIROFUMI; OZAKI TARO; ZULKEFLEE DAYANA; MURAKAMI TARO; KIHARA SHIN; NISHIGUCHI IKUZO,期刊：SYNLETT, 页码：401-404 , 文章类型： Article，,卷期：2012年-3] Magnesium-promoted reduction of branched alkyl phenyl ketones in the presence of ethyl trifluoroacetate and chlorotrimethylsilane in N,N-dimethylformamide (DMF), followed by air oxidation, and the subsequent treatment of... Copper(II)-Catalyzed O-Arylation of Tertiary Alcohols with Arylbismuth(III) Reagents: A Convenient System for Aryl Transfer [作者：HARADA SYUJI; HAYASHI DAISUKE; SATO ITARU; HIRAMA MASAHIRO,期刊：SYNLETT, 页码：405-408 , 文章类型： Article，,卷期：2012年-3] Copper(II)-catalyzed O-arylation of tertiary alcohols with various triarylbismuth reagents was investigated. A convenient and efficient system for aryl ether formation of tertiary alcohols has been developed through the ... Direct Synthesis of alpha-Amino Amides from N-Alkyl Amines by the Copper-Catalyzed Oxidative Ugi-Type Reaction [作者：YE XIN; XIE CHUNSONG; HUANG RUI; LIU JINHUA,期刊：SYNLETT, 页码：409-412 , 文章类型： Article，,卷期：2012年-3] alpha-Amino amides can be accessed directly form N-alkyl amines by the isocyanide-compatible oxidative copper-peroxide conditions even in the presence of water. Various functional groups are tolerated in the reaction, le... A Regioselective Catalyst- and Additive-Free Synthesis of beta-Keto Sulfones from Aryl Acetylenes and Sodium Arenesulfinates [作者：SREEDHAR BOJJA; RAWAT VIKAS S,期刊：SYNLETT, 页码：413-417 , 文章类型： Article，,卷期：2012年-3] A facile and regioselective procedure for the preparation of beta-keto sulfones has been developed through a simple reaction of aryl acetylenes and sodium arenesulfinates in nitroethane as a solvent at 50 degrees C. The ...