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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68条记录   Diversity-Oriented Synthesis of 2,4,6-Trisubstituted Piperidines via Type II Anion Relay Chemistry [作者：SMITH AMOS B III; HAN HEEOON; KIM WONSUK,期刊：Organic Letters, 页码：3328-3331 , 文章类型： Article，,卷期：2011年13-13] An effective, general protocol for the Diversity-Oriented Synthesis (DOS) of 2,4,6-trisubstituted piperidine congeners has been designed and validated. The successful strategy entails a modular approach to all possible s... Ruthenium-Catalyzed Direct C-H Bond Arylations of Heteroarenes [作者：ACKERMANN LUTZ; LYGIN ALEXANDER V,期刊：Organic Letters, 页码：3332-3335 , 文章类型： Article，,卷期：2011年13-13] Ruthenium-catalyzed C-H bond arylations of indoles, thiophenes, and pyrroles were accomplished in a highly chemo- and site-selective manner through the use of removable directing groups. Synthesis and Reactivity of Unique Heterocyclic Structures en Route to Substituted Diamines [作者：OLSON DAVID E; MARUNIAK AUTUMN; MALHOTRA SUSHANT; TROST BARRY M; DU BOIS J,期刊：Organic Letters, 页码：3336-3339 , 文章类型： Article，,卷期：2011年13-13] Rhodium-catalyzed oxidative cyclization of allylic hydroxylamine-derived sulfamate esters furnishes a novel family of bicyclic aziridines that serve as functional precursors to substituted diamines. Investigations with t... Synthesis of 3-Substituted Indazoles from Arynes and N-Tosylhydrazones [作者：LI PAN; ZHAO JINGJING; WU CHUNRUI; LAROCK RICHARD C; SHI FENG,期刊：Organic Letters, 页码：3340-3343 , 文章类型： Article，,卷期：2011年13-13] Readily available, stable, and inexpensive N-tosylhydrazones react with arynes under mild reaction conditions to afford 3-substituted indazoles in moderate to good yields. The reaction appears to involve a dipolar cycloa... Enantioselective Total Synthesis of a Natural Iridoid [作者：LEE SUJIN; PAEK SEUNGMANN; YUN HWAYOUNG; KIM NAMJUNG; SUH YOUNGGER,期刊：Organic Letters, 页码：3344-3347 , 文章类型： Article，,卷期：2011年13-13] The first total synthesis of 6-hydroxy-7-(hydroxymethyl)-4-methylenehexahydrocyclopenta[c]pyran-1(3H) -one has been accomplished. A key feature of the synthesis includes facile construction of the bicyclic lactone interm... Highly Regio- and Diastereoselective Construction of Spirocyclopenteneoxindoles through Phosphine-Catalyzed [3+2] Annulation of Morita-Baylis-Hillman Carbonates with Isatylidene Malononitriles [作者：DENG HONGPING; WEI YIN; SHI MIN,期刊：Organic Letters, 页码：3348-3351 , 文章类型： Article，,卷期：2011年13-13] Phosphine-catalyzed highly regio- and diastereoselective [3 + 2] annulation of Morita-Baylis-Hillman (MBH) carbonates with isatylidene malononitriles has been disclosed to give the corresponding spirocyclopenteneoxindole... Spirodiepoxide-Based Cascades: Direct Access to Diverse Motifs [作者：SHARMA ROJITA; MANPADI MADHURI; ZHANG YUE; KIM HIYUN; AHKMEDOV NOVRUZ G; WILLIAMS LAWRENCE J,期刊：Organic Letters, 页码：3352-3355 , 文章类型： Article，,卷期：2011年13-13] Allene epoxide formation/opening reaction sequences enabled direct access to diverse products. Described here are a single flask procedure for allene preparation and allene oxidation/derivatization reactions that give, a... Concise Total Synthesis of Calothrixins A and B [作者：ABE TAKUMI; IKEDA TOSHIAKI; YANADA REIKO; ISHIKURA MINORU,期刊：Organic Letters, 页码：3356-3359 , 文章类型： Article，,卷期：2011年13-13] The concise total synthesis of calothrixins A and B has been accomplished by utilizing the one-pot formation of hexatriene as a key intermediate via the palladium-catalyzed tandem cyclization/cross-coupling reaction of t... Synthesis and Structural Revision of Phomopsin B, a Novel Polyketide Carrying a 10-Membered Cyclic-Ether Ring [作者：IZUCHI YUKO; KOSHINO HIROYUKI; HONGO YAYOI; KANOMATA NOBUHIRO; TAKAHASHI SHUNYA,期刊：Organic Letters, 页码：3360-3363 , 文章类型： Article，,卷期：2011年13-13] Total synthesis of the proposed structure 2 for phomopsin B was achieved by using an intramolecular olefin metathesis as a key step. The spectral data, however, did not match with those of the natural product reported. R... Photocycloaddition of Biscyclopropyl Alkenes to C-60: An Unprecedented Approach toward cis-1 Tricyclic-Fused Fullerenes [作者：TZIRAKIS MANOLIS D; ALBERTI MARIZA N; ORFANOPOULOS MICHAEL,期刊：Organic Letters, 页码：3364-3367 , 文章类型： Article，,卷期：2011年13-13] A novel, simple, and entirely regioselective tandem cycloaddition of biscyclopropyl-substituted alkenes to [60]fullerene has been revealed. This reaction affords cis-1 tricyclic-fused organofullerenes bearing the hithert... Chemoselective Suzuki Coupling of Diborylmethane for Facile Synthesis of Benzylboronates [作者：ENDO KOHEI; OHKUBO TAKAHIRO; SHIBATA TAKANORI,期刊：Organic Letters, 页码：3368-3371 , 文章类型： Article，,卷期：2011年13-13] The chemoselective Pd-catalyzed Suzuki-Miyaura cross-coupling reaction using a diborylmethane is reported. The use of an equimolar amount of base with a diborylmethane realized chemoselective coupling for the synthesis o... A New Dual-Responsive Organogel Based on Uracil-Appended Glycyrrhetinic Acid [作者：LU JINRONG; HU JUN; SONG YANG; JU YONG,期刊：Organic Letters, 页码：3372-3375 , 文章类型： Article，,卷期：2011年13-13] A novel functional tweezer based on uracil-appended glycyrrhetinic acid with excellent gelation ability was synthesized, and the gel could transform to sol by F- and Hg2+. A Concise Route to Dihydrobenzo[b]furans: Formal Total Synthesis of (+)-Lithospermic Acid [作者：FISCHER JOSHUA; SAVAGE G PAUL; COSTER MARK J,期刊：Organic Letters, 页码：3376-3379 , 文章类型： Article，,卷期：2011年13-13] A sequence of Sonogashira coupling, Pd(II)-catalyzed carbonylative annulation, and benzofuran reduction (Mg, MeOH, NH4Cl) provides a convergent and modular synthetic route to trans-2-aryl-2,3-dihydrobenzo[b]furan-3-carbo... A [2+2] Cycloaddition Dimer and a Diels-Alder Adduct from Alpinia katsumadai [作者：YANG CHANGSHUI; WANG XIAOBING; WANG JUNSONG; LUO JIANGUANG; LUO JUN; KONG LINGYI,期刊：Organic Letters, 页码：3380-3383 , 文章类型： Article，,卷期：2011年13-13] An unusual katsumadain dimer via a [2 + 2] cycloaddition, katsumadain C (1), and a unique chalcone-diarylheptanoid adduct via a Diels-Alder reaction, calyxin Y (2) with novel carbon frameworks, were isolated from the see... Highly Regioselective [3+2] Annulation of Azomethine Imines with 1-Alkynyl Fischer Carbene Complexes to Functionalized N,N-Bicyclic Pyrazolidin-3-ones [作者：LUO NING; ZHENG ZHAOYAN; YU ZHENGKUN,期刊：Organic Letters, 页码：3384-3387 , 文章类型： Article，,卷期：2011年13-13] The highly regioselective [3 + 2] cycloaddition of azomethine imines to 1-alkynyl Fischer carbene complexes has been successfully realized under mild conditions. Oxidative demetalation of the newly formed pyrazolo-pyrazo... Ruthenium-Catalyzed Hydrovinylation of N-Acetylenamines Leading to Amines with a Quaternary Carbon Center [作者：WANG QIUSHI; XIE JIANHUA; LI WEI; ZHU SHOUFEI; WANG LIXIN; ZHOU QILIN,期刊：Organic Letters, 页码：3388-3391 , 文章类型： Article，,卷期：2011年13-13] A catalytic hydrovinylation of N-acetylenamines with ethylene is reported. This new hydrovinylation reaction is catalyzed by a ruthenium hydride complex, RuHCl(CO)(PCy3)(2), providing a series of N-acetylamines with a qu...