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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   SYNTHESIS OF PHENANTHRIDINES AND RELATED COMPOUNDS BY PALLADIUM-CATALYZED DIRECT COUPLING VIA C-H AND N-H BOND CLEAVAGES [作者：TAKEDA DAISUKE; HIRANO KOJI; SATOH TETSUYA; MIURA MASAHIRO,期刊：Heterocycles, 页码：487-496 , 文章类型： Article，,卷期：2012年86-1] The palladium-catalyzed direct annulation of benzophenone imines with o-dihalobenzenes proceeds through C-H and N-H bond cleavages to produce 6-arylphenanthridine derivatives. 2-Phenyl-imidazole, -benzimidazole, and -ind... THREE NEW BISABOLANE-TYPE SESQUITERPENOIDS FROM CREMANTHODIUM RHODOCEPHALUM (ASTERACEAE) [作者：SAITO YOSHINORI; TAKIGUCHI KOJI; GONG XUN; KURODA CHIAKI; TORI MOTOO,期刊：Heterocycles, 页码：497-503 , 文章类型： Article，,卷期：2012年86-1] From Cremanthodium rhodocephalum (Asteraceae) collected in Yunnan Province of China, four bisabolane-type (three of them were new) and one oplopane-type sesquiterpenoids were isolated. Two new hydroperoxides were the fir... CONGRATULATIONS TO PROFESSOR EI-ICHI NEGISHI ON HIS KI-JU (77TH BIRTHDAY) [作者：SUGIHARA TAKUMICHI,期刊：Heterocycles, 页码：5-7 , 文章类型： Biographical-Item，,卷期：2012年86-1] SHORT APPROACH TO BISINDOLE ALKALOID, YUEHCHUKENE, USING 2-INDOLYLCYANOCUPRATE [作者：ABE TAKUMI; KOMATSU HIROYUKI; IKEDA TOSHIAKI; HATAE NORIYUKI; TOYOTA EIKO; ISHIKURA MINORU,期刊：Heterocycles, 页码：505-513 , 文章类型： Article，,卷期：2012年86-1] A short total synthesis of a bisindole alkaloid, yuechukene, was achieved through the dimerization of beta-dehydroprenylindole generated in situ from 1-(indol-3-yl)-3-methylbut-2-en-1-amine. SYNTHESIS OF BIS-NAPHTHOPORPHYRINS [作者：UOYAMA HIROKI; YAMADA HIROKO; OKUJIMA TETSUO; UNO HIDEMITSU,期刊：Heterocycles, 页码：515-534 , 文章类型： Article，,卷期：2012年86-1] Ethanonaphthoporphyrins with a halogen atom at the zeta position were prepared by the [3+1] porphyrin synthesis of halogen-substituted ethanobenz[f]isoindole with a tripyrrane derivative. The halogeno porphyrins were con... SYNTHESIS OF 15,28-DIDEOXY-15,28-DIDEHYDROTHYRSENOL [作者：SMART MARY A; MCDONALD FRANK E,期刊：Heterocycles, 页码：535-553 , 文章类型： Article，,卷期：2012年86-1] The tetracyclic skeleton of thyrsenols A and B has been assembled, with the construction of ring A by exo-selective oxacyclization of an epoxybromohydrin, B ring formation by exo-selective oxacyclization of hydroxyepoxid... N-CHLOROSUCCINIMIDE/SODIUM HYDROXIDE-MEDIATED SYNTHESIS OF BENZIMIDAZOLES FROM AMIDINES UNDER MILD CONDITIONS [作者：THANH BINH NGUYEN; ERMOLENKO LUDMILA; ALMOURABIT ALI,期刊：Heterocycles, 页码：555-563 , 文章类型： Article，,卷期：2012年86-1] A convenient room-temperature one-pot procedure for the preparation of benzimidazoles derivatives from N-arylamidines has been developed. The reaction of N-aryl-N'-chloro amidines, generated by the treatment of N-arylami... ASSEMBLY OF THE SOUTHERN MACROCYCLIC HALF OF (+)-SPIRASTRELLOLIDE A THROUGH CYCLIC ACETAL TETHERED RING-CLOSING METATHESIS AND 1,3-ANTI-MUKAIYAMA-ALDOL [作者：TANG YU; YANG JINHAEK; LIU JIA; WANG CHAOCHAO; LV MINGCAN; WU YIBIAO; YU XUELIANG; KO CHANGHONG; HSUNG RICHARD P,期刊：Heterocycles, 页码：565-598 , 文章类型： Article，,卷期：2012年86-1] We describe herein details of our efforts in syntheses of A-ring and BC-ring of (+)-spirastrellolide A. While the former would constitute a facile 12-step synthetic endeavor starting from 1,5-pentanediol, the latter woul... PLATINUM-CATALYZED REGIOSELECTIVE HYDRATION OF 1-(2-PROPYNYL)-2-FORMYLPYRROLES [作者：YOSHIDA MASAHIRO; YODOKAWA SHOTA,期刊：Heterocycles, 页码：599-609 , 文章类型： Article，,卷期：2012年86-1] The hydration reaction of 1-(2-propynyl)-2-formylpyrroles with a platinum catalyst in aqueous media is described. Various 1-(2-oxopropyl)-2-formylpyrroles were regioselectively synthesized via the platinum-promoted intra... DIRECT CATALYTIC ASYMMETRIC VINYLOGOUS MICHAEL REACTION OF alpha,beta-UNSATURATED gamma-BUTYROLACTAM UNDER DINUCLEAR NICKEL SCHIFF BASE CATALYSIS [作者：TANABE HIROOKI; XU YINGJIE; SUN BO; MATSUNAGA SHIGEKI; SHIBASAKI MASAKATSU,期刊：Heterocycles, 页码：611-622 , 文章类型： Article，,卷期：2012年86-1] Direct catalytic asymmetric vinylogous Michael reaction is described. 2.5 mol % of homobimetallic (S)-Ni-2-Schiff base complex efficiently catalyzed the addition of alpha,beta-unsaturated gamma-butyrolactam to nitroalken... NOVEL EFFICIENT SYNTHESIS AND PROPERTIES OF 5,6-DIHYDROCYCLOHEPTA[b]INDOL-6-ONE, AND ITS TRANSFORMATION TO 6-AZOLYL-5-AZABENZ[b]AZULENES [作者：ODA MITSUNORI; ITO KUNIHIRO; TAKAGI HIROSHI; FUJIWARA YURIE,期刊：Heterocycles, 页码：623-636 , 文章类型： Article，,卷期：2012年86-1] The title compound, 5,6-dihydrocyclohepta[b]indol-6-one (1), was synthesized from 2-chlorotropone (7) by a two-step sequence involving Pd-catalyzed amination with 2-bromoaniline (15) and subsequent Pd-catalyzed intramole... SYNTHESIS AND PROPERTIES OF AZULENE-SUBSTITUTED THIOPHENES, TERTHIOPHENES AND DITHIENOTHIOPHENES [作者：OKUJIMA TETSUO; TODA AKIKO; MIYASHITA YOKO; NONOSHITA AYUMI; YAMADA HIROKO; ONO NOBORU; UNO HIDEMITSU,期刊：Heterocycles, 页码：637-648 , 文章类型： Article，,卷期：2012年86-1] Bis(azulenylethynyl)thiophenes, terthiophenes, and dithienothiophenes have been synthesized by the Pd-catalyzed cross-coupling of the corresponding diiodothiophenes with 1- and 6-ethynylazulenes under Sonogashira-Hagihar... STEREOSELECTIVE SYNTHESIS OF 2-SUBSTITUTED 1-IODO-1,3-DIENES BY THE ADDITION OF MeMgSnBu3 TO THE CONJUGATED TERMINAL ENYNES; STEREOCONTROLLED SYNTHESIS OF (2E,4Z,6E)-DEHYDRODENDROLASIN [作者：KAWAHAMA REIKO; UENISHI JUNICHI,期刊：Heterocycles, 页码：649-658 , 文章类型： Article，,卷期：2012年86-1] Addition of MeMgSnBu3 to the conjugated enynes 1 and 5 were thoroughly studied. The addition reactions were proceeded stereoselectively at -20 degrees C, but a thermal isomerization occurred when the reaction was carried... SYNTHETIC STUDIES ON alpha,alpha-DISUBSTITUTED AMINO ACIDS EMPLOYING (2S, 4R)-4-HYDROXYPROLINE AS THE CHIRAL POOL: PREPARATION OF METHYL O-BENZYL-2-(alpha-CYANOMETHYL)-D-TYROSINATE AND DIMETHYL 2-(4-HYDROXYBENZYL)-L- ASPARTATE [作者：NAGAHARA RYOHEI; HISA CHIHIRO; KOJIMA NORIKO; YAMAMOTO NAOSHI; HONDA TOSHIO,期刊：Heterocycles, 页码：659-668 , 文章类型： Article，,卷期：2012年86-1] Methyl O-benzyl-2-(alpha-cyanomethyl)-D-tyrosinate and dimethyl 2-(4-hydroxybenzyl)-L-aspartate were synthesized starting from (2S,4R)-4-hydroxyproline via Beckmann fragmentation of the corresponding oxime tosylate. ENANTIOSELECTIVE MUKAIYAMA-ALDOL REACTION BETWEEN ENOL SILANES AND KETOMALONATE CATALYZED BY THE COPPER(II) COMPLEX OF TIPS-SUBSTITUTED BIS-OXAZOLINE [作者：DESIMONI GIOVANNI; FAITA GIUSEPPE; LIVIERI ALESSANDRO; PONTA LAURA,期刊：Heterocycles, 页码：669-677 , 文章类型： Article，,卷期：2012年86-1] The stable complex [(4'S,5'S)-4b/Cu(Tf)(2)/H2O] (5), obtained from TIPS-Box and Copper triflate, catalyzes enantioselectively the Mukaiyama-aldol reactions between two silyl enol ethers (1a,b) and diethyl ketomalonate (2... alpha-SUBSTITUTED UNSYMMETRICAL PHTHALOCYANINES WITH ONE THROUGH THREE TTF UNITS AND THEIR OPTICAL AND ELECTROCHEMICAL PROPERTIES [作者：KIMURA TAKESHI; TAKAHASHI NOBUHIRO; TAJIMA TOMOYUKI; TAKAGUCHI YUTAKA,期刊：Heterocycles, 页码：679-686 , 文章类型： Article，,卷期：2012年86-1] alpha-Substituted unsymmetrical phthalocyanines fused with one through three TTF units were prepared from mixed 3,6-dioctyloxyphthalonitrile and 3,6-dioctylphthalonitrile bearing a TTF unit. The optical and electrochemic...