个性化文献订阅>文章检索

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59条记录   Selective Stille Coupling Reactions of 3-Chloro-5-halo(pseudohalo)-4H-1,2,6-thiadiazin-4-ones [作者：IOANNIDOU HERAKLIDIA A; KIZAS CHRISTOS; KOUTENTIS PANAYIOTIS A,期刊：Organic Letters, 页码：5886-5889 , 文章类型： Article，,卷期：2011年13-21] A series of 3-chloro-5-halo(pseudohalo)-4H-1,2,6-thiadiazin-4-ones (halo/pseudohalo = Br, I, OTf) are prepared from 3,5-dichloro-4H-1,2,6-thiadiazin-4-one (3) in good yields. Of these the triflate reacts with tributyltin... beta-Silyl Styrene As a Dienophile in the Cycloaddition with 3,5-Dibromo-2-pyrone for the Total Synthesis of (+/-)-Pancratistatin [作者：JUNG YONGGEUN; KANG HOUNG; CHO HYUNKYU; CHO CHEONGYU,期刊：Organic Letters, 页码：5890-5892 , 文章类型： Article，,卷期：2011年13-21] A new synthetic route to (+/-)-pancratistatin was devised utilizing beta-silyl styrene as a dienophile in the cycloaddition with 3,5-dibromo-2-pyrone. The TMS group incorporated in the cycloadduct permitted a facile elim... Selective Formation of Six-Membered Oxa- and Carbocycles by the In(III)-Activated Ring Closure of Acetylenic Substrates [作者：QIU WENWEI; SURENDRA KARAVADHI; YIN LIANG; COREY E J,期刊：Organic Letters, 页码：5893-5895 , 文章类型： Article，,卷期：2011年13-21] Fifteen examples are disclosed of efficient In(III)-catalyzed six-membered ring closure leading to bi-, tri-, and tetracyclic products. Psychotripine: A New Trimeric Pyrroloindoline Derivative from Psychotria pilifera [作者：LI XIAONING; ZHANG YU; CAI XIANGHAI; FENG TAO; LIU YAPING; LI YAN; REN JIE; ZHU HUAJIE; LUO XIAODONG,期刊：Organic Letters, 页码：5896-5899 , 文章类型： Article，,卷期：2011年13-21] Psychotripine, a trimeric pyrroloindoline derivative with an unprecedented hendecacyclic system bearing a hexahydro-1,3,5-triazine unit, was isolated from the leaves of Psychotria pilifera. The structure was elucidated o... Synthesis of Caeliferins, Elicitors of Plant Immune Responses: Accessing Lipophilic Natural Products via Cross Metathesis [作者：ODOHERTY INISH; YIM JOSHUA J; SCHMELZ ERIC A; SCHROEDER FRANK C,期刊：Organic Letters, 页码：5900-5903 , 文章类型： Article，,卷期：2011年13-21] A cross metathesis (CM)-based synthesis of the caeliferins, a family of sulfooxy fatty acids that elicit plant Immune responses, is reported. Unexpectedly, detailed NMR spectroscopic and mass spectrometric analyses of CM... Encapsulation of Anionic guests in a New Hydantoinylamido Molecular Capsule [作者：PARK YEON SIL; SEO SUNGJONG; KIM EUNHEE; PAEK KYUNGSOO,期刊：Organic Letters, 页码：5904-5907 , 文章类型： Article，,卷期：2011年13-21] Resorcin[4]arene-based tetrakis(N-hydantolnylamido)cavitand 1 forms a stable molecular capsule in the presence of suitable anionic guests such as CH(3)OSO(3)(-) or BF(4)(-) in C(2)D(2)Cl(4). Molecular capsule G(2)@1(2) i... A Chiral Cyclotrisazobiphenyl: Synthesis and Photochemical Properties [作者：REUTER RAPHAEL; WEGNER HERMANN A,期刊：Organic Letters, 页码：5908-5911 , 文章类型： Article，,卷期：2011年13-21] A chiral cyclotrisazoblphenyl macrocycle was synthesized conveniently In three steps from the literature known 3,3'-diaminoblmesltyl in 37-38% overall yield. Irradiation with 302 nm, 365 nm or visible light allows access... Study of IspH, a Key Enzyme in the Methylerythritol Phosphate Pathway Using Fluoro-Substituted Substrate Analogues [作者：XIAO YOULI; CHANG WEICHEN; LIU HUNGWEN; LIU PINGHUA,期刊：Organic Letters, 页码：5912-5915 , 文章类型： Article，,卷期：2011年13-21] IspH, a [4Fe-4S]-cluster-containing enzyme, catalyzes the reductive dehydroxylation of 4-hydroxy-3-methyl-butenyl diphosphate (HMBPP) to isopentenyl dlphosphate (IPP) and dimethylallyl diphosphate (DMAPP) in the methyler... Concise Formal Synthesis of (+)-Neopeltolide [作者：YANG ZHEN; ZHANG BINGBIN; ZHAO GAOYUAN; YANG JUAN; XIE XINGANG; SHE XUEGONG,期刊：Organic Letters, 页码：5916-5919 , 文章类型： Article，,卷期：2011年13-21] A concise formal synthesis of (+)-neopeltolide (1) has been accomplished. The synthesis demonstrated high atom efficiency employing only one step of functional group protection. Key steps involved Iridium-catalyzed doubl... Expedient Synthesis of Chiral Homoallylamines via N,O-Acetal TMS Ethers and Its Application [作者：SUH YOUNGGER; JANG JAEBONG; YUN HWAYOUNG; HAN SAE MI; SHIN DONGYUN; JUNG JAEKYUNG; JUNG JONGWHA,期刊：Organic Letters, 页码：5920-5923 , 文章类型： Article，,卷期：2011年13-21] A highly stereoselective and efficient method for the synthesis of optically active homoallylamines was developed. Key features of the method Include (1) the utilization of naphthylethylamine as both an excellent chiral ... Generation of alpha,beta-Unsaturated Platinum Carbenes from Homopropargylic Alcohols: Rearrangements to Polysubstituted Furans [作者：ALLEGRETTI PAUL A; FERREIRA ERIC M,期刊：Organic Letters, 页码：5924-5927 , 文章类型： Article，,卷期：2011年13-21] A number of diversely substituted furans are synthesized via a cycloisomerization process that goes through a unique metal carbene species. Both ligand structure and the nature of the leaving group are evaluated. The cha...