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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62条记录   Palhinine A, a Novel Alkaloid from Palhinhaea cernua [作者：ZHAO FUWEI; SUN QIANYUN; YANG FUMEI; HU GUANGWAN; LUO JIFENG; TANG GUIHUA; WANG YUEHU; LONG CHUNLIN,期刊：Organic Letters, 页码：3922-3925 , 文章类型： Article，,卷期：2010年12-17] Palhinine A, a novel C16N-type Lycopodium alkaloid with a unique 5/6/6/9 tetracyclic ring system, was isolated from the whole plant of Palhinhaea cernua L. (Lycopodiaceae). Its structure was elucidated by spectroscopic m... Pd-Catalyzed Ortho-C HAcylation/Cross Coupling of Aryl Ketone O-Methyl Oximes with Aldehydes Using tert-Butyl Hydroperoxide as Oxidant [作者：CHAN CHUNWO; ZHOU ZHONGYUAN; CHAN ALBERT S C; YU WINGYIU,期刊：Organic Letters, 页码：3926-3929 , 文章类型： Article，,卷期：2010年12-17] A Pd-catalyzed protocol for direct C-H bond acylation by cross coupling of aryl ketone oximes and aldehydes using fert-butyl hydroperoxide (TBHP) as oxidant was developed. With oximes as a directing group for the C-H act... Cu-Catalyzed Double S-Alkenylation of Potassium Sulfide: A Highly Efficient Method for the Synthesis of Various Thiophenes [作者：YOU WEI; YAN XIAOYU; LIAO QIAN; XI CHANJUAN,期刊：Organic Letters, 页码：3930-3933 , 文章类型： Article，,卷期：2010年12-17] An efficient synthetic approach to variously substituted thiophenes has been developed through copper-catalyzed tandem S-alkenylation of potassium sulfide with 1,4-dilodo-1,3-dienes. A Pd-Catalyzed Approach to (1 -> 6)-Linked C-Glycosides [作者：KOESTER DENNIS C; LEIBELING MARKUS; NEUFELD ROMAN; WERZ DANIEL B,期刊：Organic Letters, 页码：3934-3937 , 文章类型： Article，,卷期：2010年12-17] A flexible and robust method for the assembly of (1 -> 6)-linked C-glycosidic disaccharides is presented. The key reaction is a Pd-catalyzed coupling of 1-iodo- or 1-triflato-glycals with alkynyl glycosides. Reinstallati... Synthesis of (-)-Sedinine by Allene Cyclization and lminium Ion Chemistry [作者：BATES RODERICK W; LU YONGNA,期刊：Organic Letters, 页码：3938-3941 , 文章类型： Article，,卷期：2010年12-17] A synthesis of the sedum alkaloid sedinine has been achieved employing silver(I)-catalyzed allenic hydroxylamine cyclization and ring-closing metathesis to form a bicyclic N,O-acetal. Ring opening of this acetal with a s... Synthesis of 5-Amino-oxazole-4-carbontlates from alpha-Chloroglycinates [作者：ZHANG JIANMIN; COQUERON PIERREYVES; VORS JEANPIERRE; CIUFOLINI MARCO A,期刊：Organic Letters, 页码：3942-3945 , 文章类型： Article，,卷期：2010年12-17] Aluminum-based Lewis acids are effective promoters of the condensation of alpha-chloroglycinates with isonitriles or with cyanide ion, leading to the formation of 5-amino-oxazoles. Fused Bispentacenequinone and Its Unexpected Michael Addition [作者：ZHANG XIAOJIE; LI JINLING; QU HEMI; CHI CHUNYAN; WU JISHAN,期刊：Organic Letters, 页码：3946-3949 , 文章类型： Article，,卷期：2010年12-17] Fused bispentacenequinone 2 was synthesized by photocyclization of bispentacenequinone 1. Unusual regioselective Michael addition was observed for 2 when excess aryl Grignard reagent was used. Subsequent acidification an... Synthesis of Microcin SF608 through Nucleophilic Opening of an Oxabicyclo[2.2.1]heptane [作者：DIETHELM STEFAN; SCHINDLER CORINNA S; CARREIRA ERICK M,期刊：Organic Letters, 页码：3950-3953 , 文章类型： Article，,卷期：2010年12-17] The total synthesis of Microcin SF608 is reported. Access to the octahydroindole core structure of Microcin SF608 relies on the TMSOTf/NEt3-mediated opening of an oxabicyclic ring system. Additional highlights of the syn... Total Synthesis of Pareitropone via Radical Anion Coupling [作者：HONG SUKKOO; KIM HYEONJEONG; SEO YOUNGRAN; LEE SANG HYUP; CHA JIN KUN; KIM YOUNG GYU,期刊：Organic Letters, 页码：3954-3956 , 文章类型： Article，,卷期：2010年12-17] A concise (9-step) synthesis of the tropoloisoquinoline alkaloid pareitropone has been achieved starting from 2-bromoisovanillin. The key step features oxidative cyclization of a readily available phenolic nitronate for ... Synthesis of L-altro-1-Deoxynoprimycin, D-allo-1-Deoxynoprimycin, and D-galacto-1-Deoxynojirimycin from a Single Chiral Cyanohydrin [作者：VAN DEN NIEUWENDIJK ADRIANUS M C H; RUBEN MARK; ENGELSMA SANDER E; RISSEEUW MARTIJN D P; VAN DEN BERG RICHARD J B H N; BOOT ROLF G; AERTS JOHANNES M; BRUSSEE JOHANNES; VAN DER MAREL GIJS A; OVERKLEEFT HERMAN S,期刊：Organic Letters, 页码：3957-3959 , 文章类型： Article，,卷期：2010年12-17] The chemoenzymatic synthesis of three 1-deoxynojirimycin-type iminosugars is reported. Key steps in the synthetic scheme include a Dibal reduction-transimination-sodium borohydride reduction cascade of reactions on an en... Titanium(IV) Chloride-Mediated Carbon-Carbon Bond-Forming Reaction between 3,3-Dialkylcyclobutanones and Aldehydes [作者：MATSUO JUNICHI; KAWANO MIZUKI; OKUNO RYOSUKE; ISHIBASHI HIROYUKI,期刊：Organic Letters, 页码：3960-3962 , 文章类型： Article，,卷期：2010年12-17] Treatment of 3,3-dialkylcyclobutanones with titanium(IV) chloride in the presence of aldehyde gave beta-chloro-beta-hydroxy ketones in high yields. It was speculated that ring cleavage of the cyclobutanone ring with tita... Direct Synthesis of Quinazolines through Copper-Catalyzed Reaction of Aniline-Derived Benzamidines [作者：OHTA YUSUKE; TOKIMIZU YUSUKE; OISHI SHINYA; FUJII NOBUTAKA; OHNO HIROAKI,期刊：Organic Letters, 页码：3963-3965 , 文章类型： Article，,卷期：2010年12-17] A novel synthesis of 2-phenyl-4-[(triisopropylsily)methyl]quinazolines from monosubstituted arenes has been developed. Treatment of N-phenylbenzamidines with 5-nitro-1-[(triisopropylsily)ethynyl]-1,2-benziodoxol-3(1H)-on... Total Synthesis of Gambierol (vol 11, pg 4385, 2009) [作者：FURUTA HIROKI; HASEGAWA YUKI; MORI YUJI,期刊：Organic Letters, 页码：3966-3966 , 文章类型： Correction，,卷期：2010年12-17] Catalytic Regioselective Synthesis of Structurally Diverse Indene Derivatives from N-Benzylic Sulfonamides and Disubstituted Alkynes [作者：LIU CONGRONG; YANG FULAI; JIN YIZHOU; MA XIANTAO; CHENG DAOJUAN; LI NAN; TIAN SHIKAI,期刊：Organic Letters, 页码：3832-3835 , 文章类型： Article，,卷期：2010年12-17] An unprecedented protocol has been developed for the regioselective synthesis of structurally diverse indene derivatives from readily accessible N-benzylic sulfonamides and disubstituted alkynes through FeCl3-catalyzed c... Convenient RNA Synthesis Using a Phosphoramidite Possessing a Biotinylated Photocleavable Group [作者：TOMAYA KOTA; TAKAHASHI MAYUMI; MINAKAWA NORIAKI; MATSUDA AKIRA,期刊：Organic Letters, 页码：3836-3839 , 文章类型： Article，,卷期：2010年12-17] A convenient RNA synthesis using a biotin streptavidin interaction and a photocleavable protecting group is described. The biotinylated photocleavable group was introduced at the 2'-position of the uridine derivative. Us... Squaramide-Based Reagent for Selective Chromogenic Sensing of Cu(II) through a Zwitterion Radical [作者：SANNA ELENA; MARTINEZ LUIS; ROTGER CARMEN; BLASCO SALVADOR; GONZALEZ JORGE; GARCIAESPANA ENRIQUE; COSTA ANTONI,期刊：Organic Letters, 页码：3840-3843 , 文章类型： Article，,卷期：2010年12-17] A minimalist squaramide-based chemodosimeter for Cu2+ is described. Upon selective chelation to 2, Cu2+ induces the formation of a highly colored zwitterionic radical, which is kinetically stable for hours. The presence ...