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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12条记录   A NOVEL PENTOSE SYNTHESIS VIA PALLADIUM(II)-CATALYZED CYCLIZATION OF AN UNSTABLE HEMIACETAL [作者：AWASAGUCHI KENICHIRO; MIYAZAWA MASAHIRO; UOYA IKUYO; INOUE KOICHI; NAKAMURA KOJI; YOKOYAMA HAJIME; HIRAI YOSHIRO,期刊：Heterocycles, 页码：2105-2121 , 文章类型： Article，,卷期：2010年81-9] PdCl2(PhCN)(2) (5 mol%)-catalyzed cyclization of a hemiacetal derived from (E,2S,3R)-2,3-isopropylidenedioxy-6-(tetrahydro-2H-pyran-2-yl)-4-hexena l and methanol gave substituted furanoside in moderate yield, exclusively... NEW NONADRIDE ANALOGUES FROM A FRESHWATER ISOLATE OF AN UNDESCRIBED FUNGUS BELONGING TO THE ORDER PLEOSPORALES [作者：HOSOE TOMOO; GLOER JAMES B; WICKLOW DONALD T; RAJA HUZEFA A; SHEARER CAROL A,期刊：Heterocycles, 页码：2123-2130 , 文章类型： Article，,卷期：2010年81-9] Three new nonadride derivatives, tetrahydroepiheveadride (1), dideoxoepiheveadride (2) and deoxodihydroepiheveadride (3), and two new C-9 compounds, waquafranone A (7) and B (8), which were suggestive of precursors of no... NEW AND CONVENIENT ROUTE FOR THE SYNTHESIS OF SOME NEW PYRAZOL-5-YL-1H-IMIDAZOLE DERIVATIVES [作者：ZONOUZI AFSANEH; MIRZAZADEH ROGHIEH; TALEBI MARZIEH; JAFARYPOOR RAZIEH; PEIVANDI AZADEH; NG SEIK WENG,期刊：Heterocycles, 页码：2131-2138 , 文章类型： Article，,卷期：2010年81-9] A simple and efficient method for the synthesis of some new pyrazol-5-yl-1H-imidazoles 4a-h is described. In this method oxazolones 5a-h were produced as minor products. The X-ray analysis confirmed the structures of 4 a... ONE-STEP CONSTRUCTION OF 6-AZA-2-THIABICYCLO[3.3.1]NONA-3,7-DIENE FRAMEWORK [作者：NISHIWAKI NAGATOSHI; KOBIRO KAZUYA,期刊：Heterocycles, 页码：2139-2142 , 文章类型： Article，,卷期：2010年81-9] The 6-aza-2-thiabicyclo[3.3.1]nona-3,7-diene framework was constructed upon treatment of dielectrophilic 3,5-dinitro-1-methyl-2-pyridone with S,C-dinucleophilic ethyl 3-thioxobutanoate, in which two moieties are connecte... A NOVOFUMIGATAMIDE, NEW CYCLIC TRIPEPTIDE FROM ASPERGILLUS NOVOFUMIGATUS [作者：ISHIKAWA KAZUKI; HOSOE TOMOO; ITABASHI TAKESHI; TAKIZAWA KAYOKO; YAGUCHI TAKASHI; KAWAI KENICHI,期刊：Heterocycles, 页码：2143-2148 , 文章类型： Article，,卷期：2010年81-9] A new cyclic tripeptide, novofumigatamide (1) has been isolated from Aspergillus novofumigatus CBS117520. The relative structure of I was established on the basis of spectroscopic and physico-chemical data and chemical i... RECENT ADVANCES IN THE APPLICATION OF THE HECK REACTION IN THE SYNTHESIS OF HETEROCYCLIC COMPOUNDS [作者：HERAVI MAJID M; FAZELI AZADEH,期刊：Heterocycles, 页码：1979-2026 , 文章类型： Review，,卷期：2010年81-9] This brief review represents the synthesis of heterocyclic compounds via application of Heck reaction in recent years. SELENIUM-CONTAINING HETEROCYCLES USING SELENOAMIDES, SELENOUREAS, SELENAZADIENES, AND ISOSELENOCYANATES [作者：NINOMIYA MASAYUKI; GARUD DINESH R; KOKETSU MAMORU,期刊：Heterocycles, 页码：2027-2055 , 文章类型： Review，,卷期：2010年81-9] In recent years, considerable attention has been devoted to the synthesis of selenium-containing heterocycles because of their interesting reactivities and potential pharmaceutical applications. The significant starting ... MICROWAVE ASSISTED RAPID PREPARATION OF N-ALKYL-2-PYRIDONES UNDER NEUTRAL CONDITIONS BY HILBERT-JOHNSON REACTION [作者：IIDA HIROKAZU; SUDA MACHIKO; NAKAJIMA ETSUKO; HAKAMATSUKA HIROKO; NAGASHIMA YUKA; JOHO KOUTA; AMEMIYA KENTA; MOROMIZATO TATSUYA; MATSUMOTO KIYOSHI; MURAKAMI YASUOKI; HAMANA HIROSHI,期刊：Heterocycles, 页码：2057-2062 , 文章类型： Article，,卷期：2010年81-9] The reactions of 2-methoxypyridine with haloalkanes without solvent and catalyst under microwave irradiation (100-200 degrees C, 5 min) yielded the corresponding N-alkyl-2(1H)-pyridones in good to moderate yields. Howeve... ULTRASONIC-ASSISTED ONE-POT SYNTHESIS OF PYRAZOLO[1,2-a][1,2,4]TRIAZOLE-1,3-DIONES [作者：AZARIFAR DAVOOD; YAMI RAZIEH NEJAT,期刊：Heterocycles, 页码：2063-2073 , 文章类型： Article，,卷期：2010年81-9] A facile and efficient one-pot three-component synthesis of pyrazolo[1,2-a][1,2,4]triazole-1,3-diones via condensation reaction between malononitrile, 4-phenylurazole and aromatic aldehydes in ethanol under the catalytic... SYNTHESIS OF SPIRO[2-CYCLOPENTENE-1,3 '-IMIDAZO[1,2-a]-PYRIDINE] DERIVATIVES AND THEIR INTERESTING BEHAVIOR IN H-1-NMR SPECTRA IN DEUTERIOCHLOROFORM [作者：ABE TAKASHI; KAKEHI AKIKAZU; SUGA HIROYUKI; OKUMURA YUKIHISA; ITOH KENNOSUKE,期刊：Heterocycles, 页码：2075-2086 , 文章类型： Article，,卷期：2010年81-9] Ethyl 2',3'-dihydro-2-methylthio-2',4-dioxospiro[2-cyclopentene-1,3'-imidazo[ 1,2-a]pyridine]-3-carboxylates were synthesized from the reactions of 3-[bis(methylthio)methylene]-2(3H)-imidazo[1,2-a]pyridinones with ethyl ... AN EFFICIENT SYNTHESIS OF 2-AMINOBENZOXAZOLES AND 2-AMINOBENZOTHIAZOLES FROM 2-AMINOPHENOLS OR 2-AMINOTHIOPHENOLS AND ISOSELENOCYANATES [作者：XIE YUANYUAN; ZHANG FAN; CHEN XIAODONG; LI JIANJUN,期刊：Heterocycles, 页码：2087-2096 , 文章类型： Article，,卷期：2010年81-9] An expeditious method to access 2-aminobenzoxazoles and 2-aminobenzothiazoles from various substituted 2-aminophenols and 2-aminothiophenols, respectively, with isoselenocyanates in a one pot procedure is reported. Eleme... CYCLIZATION REACTIONS OF 2-ISOTHIOCYANATOPHENYL KETONES GIVING 4-HYDROXYQUINOLINE-2(1H)-THIONES AND 4-ALKYLIDENE-1,4-DIHYDRO-3,1-BENZOXAZINE-2-THIONES [作者：KOBAYASHI KAZUHIRO; KOMATSU TOSHIHIDE; FUKAMACHI SHUHEI; KONISHI HISATOSHI,期刊：Heterocycles, 页码：2097-2104 , 文章类型： Article，,卷期：2010年81-9] 2-Isothiocyanatophenyl methyl ketones, generated in situ by treatment of 2-isocyanophenyl methyl ketones with sulfur in the presence of a catalytic amount of selenium and excess triethylamine, underwent electrocyclic rea...