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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64条记录   Hyperaromatic Stabilization of Arenium Ions [作者：KUDAVALLI JAYA S; BOYD DEREK R; COYNE DARA; KEEFFE JAMES R; LAWLOR DAVID A; MACCORMAC AOIFE C; OFERRALL RORY A MORE; RAO S NAGARAJA; SHARMA NARAIN D,期刊：Organic Letters, 页码：5550-5553 , 文章类型： Article，,卷期：2010年12-23] Benzene-cis- and trans-1,2-dihydrodiols undergo acid-catalyzed dehydration at remarkably different rates: k(cis)/k(trans) = 4500. This is explained by formation of a beta-hydroxycarbocation intermediate in different init... Rapid Biomimetic Total Synthesis of (+/-)-Rossinone B [作者：ZHANG ZIYANG; CHEN JIAHUA; YANG ZHEN; TANG YEFENG,期刊：Organic Letters, 页码：5554-5557 , 文章类型： Article，,卷期：2010年12-23] A biomimetic total synthesis of (+/-)-rossinone B has been achieved through a highly efficient strategy featuring a series of rationally designed reactions, including a one-pot allylic rearrangement/oxidation reaction to... Palladium-Catalyzed Intramolecular Carbopalladation/Cyclization Cascade: Access to Polycyclic N-Fused Heterocycles [作者：CHERNYAK DMITRI; GEVORGYAN VLADIMIR,期刊：Organic Letters, 页码：5558-5560 , 文章类型： Article，,卷期：2010年12-23] An efficient palladium-catalyzed intramolecular carbopalladation/cyclization cascade toward tetra- and pentacyclic N-fused heterocycles has been developed. This transformation proceeds via the palladium-catalyzed couplin... TBHP/I-2-Mediated Domino Oxidative Cyclization for One-Pot Synthesis of Polysubstituted Oxazoles [作者：JIANG HUANFENG; HUANG HUAWEN; CAO HUA; QI CHAORONG,期刊：Organic Letters, 页码：5561-5563 , 文章类型： Article，,卷期：2010年12-23] A facile type of one-pot, transition-metal-free domino process was developed for the synthesis of oxazoles. Thus, a variety of polysubstituted oxazoles were easily synthesized via t-BuOOH/(2)-mediated domino oxidative cy... A Synthesis of Carbasugar-Sugar Pseudodisaccharides via a Cycloaddition-Cycloreversion Reaction of 2H-Pyran-2-ones [作者：AFARINKIA KAMYAR; ABDULLAHI MOHAMED HAJI; SCOWEN IAN J,期刊：Organic Letters, 页码：5564-5566 , 文章类型： Article，,卷期：2010年12-23] Cycloaddition of 3-carbomethoxy-2h-pyran-2-one to a vinylated sugar followed by the loss of bridging CO2 from the cycloadduct affords a cyclohexadiene which can be manipulated to a carbasugar-sugar pseudodisaccharide. Palladium-Catalyzed Domino Ring-Opening/Carboxamidation Reactions of N-Tosyl Aziridines and 2-lodothiophenols: A Facile and Efficient Approach to 1,4-Benzothiazepin-5-ones [作者：ZENG FANLONG; ALPER HOWARD,期刊：Organic Letters, 页码：5567-5569 , 文章类型： Article，,卷期：2010年12-23] A novel and efficient domino procedure has been developed for the synthesis of 1,4-benzothiazepin-5-ones from simple and readily accessible N-tosyl aziridines and o-iodothiophenols. This process involves aziridines ring-... Synthesis of Sulfur-Sulfur Bond Formation from Thioamides Promoted by 2,3-Dichloro-5,6-dicyanobenzoquinone [作者：LO WEISHENG; HU WANPING; LO HSIAOPING; CHEN CHUNGYU; KAO CHAILIN; VANDAVASI JAYA KISHORE; WANG JEHJENG,期刊：Organic Letters, 页码：5570-5572 , 文章类型： Article，,卷期：2010年12-23] A mild and efficient synthesis of sulfur-sulfur bond formation from thioformanilides with 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) is described. Functionality on the aromatic ring plays a key role in the formation of a... Total Synthesis, of TAK-Kinase Inhibitor LL-Z1640-2 via Consecutive Macrocyclization and Transannular Aromatization [作者：MIYATAKEONDOZABAL HIDEKI; BARRETT ANTHONY G M,期刊：Organic Letters, 页码：5573-5575 , 文章类型： Article，,卷期：2010年12-23] The biomimetic total synthesis of LL-Z1640-2 (3) is reported without the use of phenol protection. The aromatic unit was constructed via the transannular aromatization of macrocyclic triketo-ester 2, which in turn was sy... Total Synthesis, and Antimalarial Activity of Symplostatin 4 [作者：CONROY TRENT; GUO JIN T; HUNT NICHOLAS H; PAYNE RICHARD J,期刊：Organic Letters, 页码：5576-5579 , 文章类型： Article，,卷期：2010年12-23] The first total synthesis of symplostatin 4, a marine cyanobacterium-derived natural product, is described. Notable features of the route include the efficient preparation of three key fragments and final assembly to the... Microwave-Assisted, Pd(0)-Catalyzed Cross-Coupling of Diazirines with Aryl Halides [作者：ZHAO XIA; WU GUOJIAO; YAN CHONG; LU KUI; LI HUI; ZHANG YAN; WANG JIANBO,期刊：Organic Letters, 页码：5580-5583 , 文章类型： Article，,卷期：2010年12-23] Pd(0)-catalyzed cross-coupling reactions of diazirines with aryl halides under microwave heating conditions afford a series of substituted olefins. A reaction mechanism involving the migratory insertion of the Pd carbene... Building beta-Peptide H10/12 Foldamer Helices with Six-Membered Cyclic Side-Chains: Fine-Tuning of Folding and Self-Assembly [作者：MANDITY ISTVAN M; FUELOEP LIVIA; VASS ELEMER; TOTH GABOR K; MARTINEK TAMAS A; FUELOEP FERENC,期刊：Organic Letters, 页码：5584-5587 , 文章类型： Article，,卷期：2010年12-23] The ability of the beta-peptidic H10/12 helix to tolerate side-chains containing six-membered alicyclic rings was studied. cis-2-Aminocyclohex-3-ene carboxylic acid (cis-ACHEC) res dues afforded H10/12 helix formation wi... Dialkylaluminum N,O-Dimethylhydroxylamine Complex as a Reagent to Mask Reactive Carbonyl Groups in Situ from Nucleophiles [作者：BARRIOS FRANCIS J; ZHANG XUECHAO; COLBY DAVID A,期刊：Organic Letters, 页码：5588-5591 , 文章类型： Article，,卷期：2010年12-23] Aluminum complexes of N,O-dimethylhydroxylamine are effective reagents to mask carbonyl groups in situ from nucleophilic addition by organolithiums, Grignard reagents, and borohydrides. The utility of this process by sel... Asymmetric Synthesis of 2-Aryl-2,3-dihydro-4-quinolones via Bifunctional Thiourea-Mediated Intramolecular Cyclization [作者：LIU XIAOQIAN; LU YIXIN,期刊：Organic Letters, 页码：5592-5595 , 文章类型： Article，,卷期：2010年12-23] A novel asymmetric preparation of optically enriched 2-aryl-2,3-dihydroquinolin-4(1H)-ones has been developed. By installing a sulfonyl group on the nitrogen of the anilines and an ester function on the unsaturated keton... Cationic Rhodium(I) Complex-Catalyzed Cotrimerization of Propargyl Esters and Arylacetylenes Leading to Substituted Dihydropentalenes [作者：SHIBATA YU; NOGUCHI KEIICHI; TANAKA KEN,期刊：Organic Letters, 页码：5596-5599 , 文章类型： Article，,卷期：2010年12-23] It has been established that a cationic rhodium(I)/cod complex catalyzes the cotrimerization of propargyl esters and arylacetylenes, leading to substituted dihydropentalenes, in the presence of excess cod through elimina... Stereoselective C-Glycosidations with Achiral and Enantioenriched Allenylsilanes (vol 12, pg 4624, 2010) [作者：BRAWN RYAN A; PANEK JAMES S,期刊：Organic Letters, 页码：5600-5600 , 文章类型： Correction，,卷期：2010年12-23] Highly Chemoselective Baylis-Hillman and Aldol Reactions of 2H-Thiopyran-4(3H)-one Using Tertiary Amine Catalysts in Aqueous Media (vol 12, pg 4568, 2010) [作者：EFTEKHARISIS BAGHER; AKBARI ALI; HARMS KLAUS,期刊：Organic Letters, 页码：5600-5600 , 文章类型： Correction，,卷期：2010年12-23]