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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   HONORING THE 77TH BIRTHDAY OF PROFESSOR EI-ICHI NEGISHI [作者：WILLIAMS ROBERT M,期刊：Heterocycles, 页码：1-3 , 文章类型： Biographical-Item，,卷期：2012年86-1] SULFUR- AND N-ACYL CARBONYL OXYGEN-ASSISTED HETEROLYSIS OF THE C(=O)-S BOND IN EXCITED-STATE (Z)-N-ACYL-alpha-DEHYDRO(1-NAPHTHYL)ALANINE THIOESTERS [作者：HOSOI YOSUKE; IGARASHI TETSUTARO; SAKURAI TADAMITSU,期刊：Heterocycles, 页码：117-126 , 文章类型： Article，,卷期：2012年86-1] Irradiation of the title thioesters (Z)-1 in nitrogen-saturated 1,2-dichloroethane at wavelengths greater, than 280 nm was found to afford (Z)-4-(1-naphthylmethylene)-5(4H)-oxazolone derivatives (Z)-2, (E)-2, alkyl-subst... A CONCISE SYNTHESIS OF THE AB-RING FRAGMENT OF (-)-GAMBIEROL [作者：FUWA HARUHIKO; HIROTA KAZUAKI; SASAKI MAKOTO,期刊：Heterocycles, 页码：127-132 , 文章类型： Article，,卷期：2012年86-1] We describe herein a concise synthesis of the AB-ring fragment of gambierol, wherein silver(I) trifluoromethanesulfonate-catalyzed 6-endo cyclization of a hydroxy ynone was exploited for the formation of the A-ring. NICKEL-CATALYZED BOLYLATION OF ARYL HALIDES WITH 4,4,6-TRIMETHYL-1,3,2-DIOXABORINANE [作者：MURATA MIKI; SOGABE YOSUKE; NAMIKOSHI TAKESHI; WATANABE SHINJI,期刊：Heterocycles, 页码：133-138 , 文章类型： Article，,卷期：2012年86-1] The nickel-catalyzed borylation of aryl iodides and bromides with 4,4,6-trimethyl-1,3,2-dioxaborinane was achieved. The mild reaction conditions employed allowed for the inclusion of common functional groups in aryl hali... DESIGN AND SYNTHESIS OF A C-2-SYMMETRIC CHIRAL 1,2-BIS(DIPHENYLPHOSPHINO)BENZENE LIGAND VIA RHODIUM-CATALYZED INTRAMOLECULAR [2+2+2] CYCLOADDITION [作者：MORI FUMIYA; NOGUCHI KEIICHI; TANAKA KEN,期刊：Heterocycles, 页码：139-146 , 文章类型： Article，,卷期：2012年86-1] The design and synthesis of a C-2-symmetric chiral 1,2-bis(diphenylphosphino)benzene ligand via the rhodium-catalyzed intramolecular [2+2+2] cycloaddition followed by reduction are disclosed. This new chiral dppbz-type l... CONSTRUCTION OF ALL-CARBON QUATERNARY STEREOCENTERS BY ZINC-MEDIATED BARBIER-TYPE ALLYLATION IN AQUEOUS MEDIA [作者：TAKAO KENICHI; MIYASHITA TOMO; AKIYAMA NOZOMI; KURISU TAKUYA; TSUNODA KOHEI; TADANO KINICHI,期刊：Heterocycles, 页码：147-153 , 文章类型： Article，,卷期：2012年86-1] Stereoselective construction of an all-carbon quaternary stereocenter by Barbier-type allylation in aqueous media is described. Sugar-derived aldehydes, 2,3-O-isopropylidene-D-glyceraldehyde and 2,4-O-benzylidene-D-threo... STEREOSELECTIVE SYNTHESIS OF THE FUSED gamma-LACTONE/delta-LACTONE CORE OF OPHIODILACTONES [作者：MATSUBARA TAKAAKI; TAKAHASHI KEISUKE; ISHIHARA JUN; HATAKEYAMA SUSUMI,期刊：Heterocycles, 页码：155-158 , 文章类型： Article，,卷期：2012年86-1] A promising precursor of ophiodilactones A and B, tetrameric phenyl propanoids isolated form the ophiuroid Ophiocoma scolopendrina, has been synthesized stereoselectively employing a halolactonization and an intramolecul... SYNTHESIS OF p-CHLOROAZACALIX[5]ARENE PENTAMETHYL ETHER: RING SIZE-DEPENDENT DEPROTECTION OF N-BENZYL GROUPS [作者：TSUE HIROHITO; MIYATA KAZUYUKI; TAKAHASHI DAISUKE; TAKAHASHI HIROKI; SASAKI KOHEI; TAMURA RUI,期刊：Heterocycles, 页码：159-164 , 文章类型： Article，,卷期：2012年86-1] Syntheses of chlorinated azacalix[4]arene and azacalix[5]arene have been investigated. While the preparation of the former failed in the final N-debenzylation step, the latter was successfully obtained. The observed ring... FACILE SYNTHESIS AND ESTROGENIC ACTIVITY OF ARYLPYRROLE-BASED BISPHENOL DERIVATIVES [作者：OHTA KIMINORI; TAGUCHI FUMI; ENDO YASUYUKI,期刊：Heterocycles, 页码：165-170 , 文章类型： Article，,卷期：2012年86-1] Novel estrogen candidates 6a and 6b incorporating arylpyrrole bisphenol structure were synthesized in only three steps from commercially available materials by means of McMurry coupling and an unexpected BBr3-mediated ar... PALLADIUM-CATALYZED TANDEM COUPLING REACTION OF ALKYNE, CONJUGATED DIENE, AND TRIETHYLBORANE [作者：TAKUSHIMA DAIKI; FUKUSHIMA MASAHIRO; SATOMURA HIDEAKI; ONODERA GEN; KIMURA MASANARI,期刊：Heterocycles, 页码：171-180 , 文章类型： Article，,卷期：2012年86-1] Pd(0) catalyst promotes three-component coupling reactions of allylic alcohols and vinylcyclopropanes with terminal alkynes and triethylborane to provide (E)-1-substituted 2-ethyl-1,4-pentadienes and (E)-1-substituted 2-... SELECTIVE INTRODUCTION OF FOUR CONTIGUOUS STEREOCENTERS ON THE B-RING OF 4-HYDROXYZINOWOL [作者：IWATSU MASAFUMI; URABE DAISUKE; TODOROKI HIDENORI; MASUDA KENGO; INOUE MASAYUKI,期刊：Heterocycles, 页码：181-188 , 文章类型： Article，,卷期：2012年86-1] 4-Hydoxyzinowol is a bioactive polyoxygenated dihydro-beta-agarofuran sesquiterpenoid. Here we describe construction of four contiguous cis-oriented stereocenters on the B-ring of 4-hydroxyzinowol. Introduction of a C7-i... A DIVERSIFIED APPROACH TO THE SYNTHESIS OF HIGHLY FUNCTIONALIZED NOVEL AZINES AND AZOLES FROM 2H-PYRAN-2-ONES [作者：MISHRA PUSHYAMITRA; KUMAR SANDEEP; MAURYA HARDESH K; GAUTAM SANJAY K; KUMAR BRIJESH; TANDON VISHNU K; RAM VISHNU JI,期刊：Heterocycles, 页码：189-201 , 文章类型： Article，,卷期：2012年86-1] One-pot regioselective synthesis of 2,6-diarylpyrimidines (4), 2,6-disubstituted pyridines (5 and 6), 5-aryl-3-cyanomethyl-1H-pyrazoles (7) through base catalyzed ring transformation of suitably functionalized 2H-pyran-2... HIGHLY ENANTIOSELECTIVE SYNTHESIS OF ISOQUINUCLIDINE BY DIELS-ALDER REACTION OF 1,2-DIHYDROPYRIDINE UTILIZING CHIRAL BISOXAZOLINE-Cu(II) COMPLEX [作者：HUTABARAT N D M ROMAULI; SEKI CHIGUSA; SHIMIZU TAKASHI; HIRAMA MASAFUMI; KOHARI YOSHIHITO; NAKANO HIROTO; UWAI KOJI; TAKANO NOBUHIRO; KWON EUNSANG; MATSUYAMA HARUO,期刊：Heterocycles, 页码：203-217 , 文章类型： Article，,卷期：2012年86-1] The enantioselective Diels-Alder (D-A) reaction between N-phenoxycarbonyl- or N-benzyloxycarbonyl-1,2-dihydropyridine (1a or 1b) and N(2)-acryloyl-N(1)-(1-naphthylmethyl)-5,5-dimethylpyrazolidin-3-one (2b) using (S,S)-bi... FORMAL SYNTHESIS OF HAPALINDOLE O AND SYNTHETIC EFFORTS TOWARDS HAPALINDOLE K AND AMBIGUINE A [作者：RAFFERTY RYAN J; WILLIAMS ROBERT M,期刊：Heterocycles, 页码：219-231 , 文章类型： Article，,卷期：2012年86-1] The formal synthesis of D,L-hapalindole O has been accomplished intercepting Natsume's total synthesis route. The intercepted substrate was synthesized in an overall 36% yield over ten-synthetic steps compared to Natsume... SYNTHESIS, CYCLIZATION, AND EVALUATION OF THE ANTICANCER ACTIVITY AGAINST HeLa S-3 CELLS OF ETHYL 2-ACETYLAMINO-3-ETHYNYLAZULENE-1-CARBOXYLATES [作者：HYOUDOU MARIE; NAKAGAWA HAJIME; GUNJI TAKAHIRO; ITO YOSHINO; KAWAI YU; IKEDA REIKO; KONAKAHARA TAKEO; ABE NORITAKA,期刊：Heterocycles, 页码：233-244 , 文章类型： Article，,卷期：2012年86-1] Reaction of ethyl 2-aminoazulene-1-carboxylate with NIS in CHCl3 gave 2,2'-diamino-3,3'-diethoxycarbonyl-1,1'-biazulene (3) and a terazulene derivative. The coupling of azulenes was catalyzed by acid. Operation of the re... ANTIMALARIAL SPIRO-BRIDGED 1,2-DIOXOLANES VIA INTRAMOLECULAR ADDITION OF PEROXYCARBENIUM IONS TO C-C DOUBLE BONDS [作者：LI YUN; WITTLIN SERGIO; WU YIKANG,期刊：Heterocycles, 页码：245-254 , 文章类型： Article，,卷期：2012年86-1] Several 1,2-dioxolanes embedded in a rigid spiro-bridge framework fused with a built-in UV chromophore were synthesized through intramolecular [3+2] addition of in situ generated peroxycarbenium ions to C-C double bonds....