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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66条记录   FACILE SYNTHESIS AND RING-OPENING OF 4-(TRIBUTYLSTANNYL)PYRROLIDINE-2-CARBOXYLATES [作者：SHIMIZU MAKOTO; ANDO HIROMI; SHIBUYA HITOSHI; HACHIYA IWAO,期刊：Heterocycles, 页码：773-778 , 文章类型： Article，,卷期：2010年80-2] On treatment of ethyl 2-(4-methoxyphenylimino)acetate with (E)-1-tert-butyldimethylsiloxy-3-tributylstannylalkenes in the presence of methanesulfonic acid (MsOH) at -78 degrees C, a ring-closing reaction proceeded to giv... ENANTIOSELECTIVE SYNTHESIS OF 2-ARYL-2,3-DIHYDRO-4-QUINOLONES BY CHIRAL BRONSTED ACID CATALYZED INTRAMOLECULAR AZA-MICHAEL ADDITION REACTION [作者：FENG ZHEN; XU QINGLONG; DAI LIXIN; YOU SHULI,期刊：Heterocycles, 页码：765-771 , 文章类型： Article，,卷期：2010年80-2] Asymmetric intramolecular aza-Michael addition of activated alpha,beta-unsaturated ketones catalyzed by chiral N-triflyl phosphoramide was realized. Enantioenriched 2-aryl-2,3-dihydroquinolin-4-ones can be obtained in ex... ALLYLIC ALKYLATION OF INDOLES WITH BUTADIENE PROMOTED BY PALLADIUM CATALYST AND TRIETHYLBORANE [作者：KIMURA MASANARI; TOHYAMA KATSUMI; YAMAGUCHI YUMI; KOHNO TOMOHIKO,期刊：Heterocycles, 页码：787-797 , 文章类型： Article，,卷期：2010年80-2] Triethylborane promotes the Pd-catalyzed allylic alkylation of a wide variety of indoles with 1,3-butadiene to provide C3-octadienylindoles and C3-bis(octadienyl)indolenines in good to excellent yields under mild conditi... ORGANOCATALYTIC ASYMMETRIC DIELS-ALDER REACTION OF FURAN UNDER HIGH PRESSURE [作者：MIMOTO AKIKO; NAKANO KEIJI; ICHIKAWA YOSHIYASU; KOTSUKI HIYOSHIZO,期刊：Heterocycles, 页码：799-804 , 文章类型： Article，,卷期：2010年80-2] A new method for the asymmetric Diels-Alder reaction between furan and acrolein has been developed through the combined use of chiral organocatalysts and high pressure (yield up to 91%; endo-adduct up to 19% ee, exo-addu... BORON TRICHLORIDE MEDIATED ALKYNE-ALDEHYDE COUPLING REACTIONS [作者：YAO MINLIANG; QUINN MICHAEL P; KABALKA GEORGE W,期刊：Heterocycles, 页码：779-785 , 文章类型： Article，,卷期：2010年80-2] The boron trichloride mediated reaction of aryl aldehydes and alkynes can be used to selectively generate either (Z,Z)- or (Z,E)-1,5-dichloro-1,4-dienes as major products, depending on the reaction conditions employed. T... METHYL INSERTION REACTIONS OF TETRAHYDROPYRANS HAVING A C1 '-MESYLOXY GROUP ON THE C2-SIDE CHAIN WITH TRIMETHYLALUMINUM [作者：NAKAMURA KEIGO; KIMISHIMA ATSUSHI; NAKATA TADASHI,期刊：Heterocycles, 页码：805-810 , 文章类型： Article，,卷期：2010年80-2] Methyl insertion reactions of tetrahydropyrans having a C1'-mesyloxy group on the C2-side chain, mediated by trimethylaluminum, were investigated. Removal of the mesyloxy group, 1,2-hydride shift and/or ring-expansion, a... SYNTHESIS OF THE 1,2-ANTI TYPE OF 3E-ALKENE-1,2,5-TRIOL DERIVATIVES [作者：KOBAYASHI YUICHI; TAKEUCHI AKIRA; HATTORI HATSUHIKO,期刊：Heterocycles, 页码：811-818 , 文章类型： Article，,卷期：2010年80-2] We invented an efficient method to obtain 3E-alkene-1,2,5-triol derivatives with 1,2-anti stereochemistry from the 2Z,4E-alkadienyl alcohol derivatives, which were synthesized by using nickel-catalyzed coupling between l... PREPARATION AND PHOTOCHEMICAL PROPERTIES OF [2]ROTAXANES CONTAINING AN ANILINE MOIETY ENCAPSULATED BY CROWN ETHERS [作者：TOKUNAGA YUJI; NAKASHIMA SATOSHI; IWAMOTO TAKUYA; GAMBAYASHI KEI; HISADA KENJI; HOSHI TOMONORI,期刊：Heterocycles, 页码：819-823 , 文章类型： Article，,卷期：2010年80-2] This paper describes preparation of rotaxanes having an aniline moiety in the axle and crown ethers as wheels through an imine formation reaction and hydrogen-bond-guided self-assembly. UV-vis and emission measurements o... SYNTHESIS OF THE ABC RING FRAGMENT OF BREVISIN, A NEW DINOFLAGELLATE POLYCYCLIC ETHER [作者：OHTANI NAOHITO; TSUTSUMI RYOSUKE; KURANAGA TAKEFUMI; SHIRAI TOMOHIRO; WRIGHT JEFFREY L C; BADEN DANIEL G; SATAKE MASAYUKI; TACHIBANAA KAZUO,期刊：Heterocycles, 页码：825-830 , 文章类型： Article，,卷期：2010年80-2] A polycyclic ether, brevisin was isolated from the red-tide dinoflagellate Karenia brevis. Its unique skeletal structure consists of two separate tricyclic ether assemblies connected by a methylene bridge. The ABC ring f... NOVEL RADICAL CYCLIZATION METHOD ACCOMPANIED BY ELIMINATION OF HYDRAZYL RADICAL [作者：KOBAYASHI SHOJI; HIRAO HIDEFUMI; KAWAUCHI TATSURO; RYU ILHYONG,期刊：Heterocycles, 页码：879-885 , 文章类型： Article，,卷期：2010年80-2] The potential of hydrazine group as the new radical leaving group was studied. Radical cyclization of (E)-1,1-dialkyl-2-(1-alkyloct-2-en-7-ynyl)hydrazines with n-Bu3SnH/AIBN, followed by protodestannylation, gave 1-alken... NUCLEOPHILIC ADDITION OF HETARYLLITHIUM COMPOUNDS TO 3-NITRO-1-(PHENYLSULFONYL)INDOLE: SYNTHESIS OF TETRACYCLIC THIENO[3,2-c]-delta-CARBOLINES [作者：ALFORD PHILIP E; KISHBAUGH TARA L S; GRIBBLE GORDON W,期刊：Heterocycles, 页码：831-840 , 文章类型： Article，,卷期：2010年80-2] 3-Nitro-1-(phenylsulfonyl)indole undergoes addition of aryl- and hetaryllithium nucleophiles to produce 2-substituted-3-nitroindoles. Mild reductive acylation provides excellent access to 3-amido-2-hetarylindoles from wh... DIVERGENT SYNTHESIS OF LAMELLARIN alpha 13-SULFATE, 20-SULFATE, and 13,20-DISULFATE [作者：FUKUDA TSUTOMU; OHTA TAKESHI; SAEKI SHO; IWAO MASATOMO,期刊：Heterocycles, 页码：841-846 , 文章类型： Article，,卷期：2010年80-2] A divergent synthesis of three sulfate derivatives of lamellarin alpha, namely, lamellarin alpha 13-sulfate (2), 20-sulfate (1), and 13,20-disulfate (4) has been achieved via a common intermediate (6) in which 13-OH and ... DIVERSITY-ORIENTED APPROACH TO 1,2,3,4-TETRAHYDROISOQUINOLINE-3-CARBOXYLIC ACID (TIC) DERIVATIVES USING DIETHYL ACETAMIDOMALONATE AS A GLYCINE EQUIVALENT : FURTHER EXPANSION BY SUZUKI-MIYAURA CROSS-COUPLING REACTION [作者：KOTHA SAMBASIVARAO; MISRA SHILPI; KRISHNA NIMITA GOPAL; DEVUNURI NAGARAJU; HOPF HENNING; KEECHERIKUNNEL ABHILASH,期刊：Heterocycles, 页码：847-854 , 文章类型： Article，,卷期：2010年80-2] Synthesis of diverse 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (Tic) derivatives and its higher analogues are reported using diethyl acetamidomalonate as a glycine equivalent. In addition, various substituted Tic ... OXIDANT-FREE LACTONIZATION OF DIOLS USING A HYDROTALCITE-SUPPORTED COPPER CATALYST [作者：MIKAMI YUSUKE; EBATA KAORI; MITSUDOME TAKATO; MIZUGAKI TOMOO; JITSUKAWA KOICHIRO; KANEDA KIYOTOMI,期刊：Heterocycles, 页码：855-861 , 文章类型： Article，,卷期：2010年80-2] We newly synthesized well-crystallized hydrotalcite-supported copper nanoparticles, denoted as Cu/HT(c), which acted as a highly efficient heterogeneous catalyst for oxidant-free lactonization of various diols under liqu... SYNTHESIS OF alpha-ALKYLIDENE-delta-VALEROLACTONES VIA THE CONJUGATE ADDITION OF KETONE ENOLATES TO FUNCTIONALIZED ALLYL ACETATES [作者：RAMACHANDRAN P VEERARAGHAVAN; BHATTACHARYYA ANNYT,期刊：Heterocycles, 页码：863-872 , 文章类型： Article，,卷期：2010年80-2] Sequential addition of ketone enolates to allyl acetates bearing an ester, followed by reduction and cyclization provides a variety of substituted alpha-alkylidene-delta-valerolactones. SYNTHESIS OF ZANTHOXYLINE AND ITS RELATED COMPOUNDS: REVISION OF THE REPORTED STRUCTURE [作者：ABE HITOSHI; KOBAYASHI NAOKO; TAKEUCHI YASUO; HARAYAMA TAKASHI,期刊：Heterocycles, 页码：873-877 , 文章类型： Article，,卷期：2010年80-2] Benzo[c]phenanthridine alkaloid, zanthoxyline, was synthesized through an intramolecular biaryl coupling reaction of N-naphthylbenzamide derivative using a palladium reagent. Comparison of the NMR data for the synthetic ...