- CONVENIENT SYNTHESIS OF AMINOPYRIDINECARBOXYLIC ACIDS
[作者:OKAMOTO IWAO; TERASHIMA MASAYUKI; YOSHIOKA REMPEI; MURAMATSU TOMONORI; KOJIMA SATOMI; INOUE HARUKA; TAKAHASHI MIO; MORITA NOBUYOSHI; TAMURA OSAMU,期刊:Heterocycles, 页码:2343-2352 , 文章类型: Article,,卷期:2011年83-10]
- 6-(Alkylamino)pyridine-2-carboxylic acids and 5-(alkylamino)pyridine-3-carboxylic acids were conveniently synthesized from dibromopyridine in satisfactory yields.
- SYNTHESIS AND ALKYLATION OF SPIRO-2-OXAZOLINES CONTAINING FUSED 3,4-DIHYDROPYRAZIN-2(1H)-ONES
[作者:MUSIC IRENA; VERCEK BOJAN,期刊:Heterocycles, 页码:2353-2364 , 文章类型: Article,,卷期:2011年83-10]
- Spiro-2-oxazolines containing 3,4-dihydroquinoxalin-2(1H)-one, 3,4-dihydrobenzoquinoxalin-2(1H)-one, 1,2-dihydropyrido[2,3-b]pyrazin-3(4H)-one or 5,6-dihydropteridin-7(8H)-one moiety were prepared by heating of aromatic ...
- THE [2+2] CYCLOADDITION REACTION OF ETHYNYLATED 2H-CYCLOHEPTA[b]FURAN-2-ONES WITH 2,3-DICHLORO-5,6-DICYANO-1,4-BENZOQUINONE
[作者:SHOJI TAKU; HIGASHI JUNYA; ITO SHUNJI; YASUNAMI MASAFUMI; MORITA NOBORU,期刊:Heterocycles, 页码:2271-2274 , 文章类型: Article,,卷期:2011年83-10]
- Ethynylated 2H-cyclohepta[b]furan-2-ones reacted with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) in a formal [2+2] cycloaddition reaction to afford the corresponding DDQ-adducts 10-15 in good yields.
- UTILIZATION OF 2-HALO-1,3,4-THIADIAZOLES IN THE SYNTHESIS OF 2-FUNCTIONALIZED 1,3,4-THIADIAZOLE DERIVATIVES
[作者:WANG XICUN; LUO JINGE; DING XIAOMEI; QUAN ZHENGJUN,期刊:Heterocycles, 页码:2275-2287 , 文章类型: Article,,卷期:2011年83-10]
- Novel 2-bromo/iodo-5-aryloxymethy1-1,3,4-thiadiazoles were prepared by the diazotization of 2-amino-1,3,4-thiadiazoles using p-TsOH as acid under the copper-free conditions. 2-Chloro-5-aryloxymethyl-1,3,4-thiadiazoles, w...
- A NEW METHOD FOR SYNTHESIS OF 2-ALKOXYADENOSINE ANALOGS
[作者:SAKAKIBARA NORIKAZU; TSURUTA TAKASHI; KOMATSU MASAHIRO; IWAI MASATOSHI; MARUYAMA TOKUMI,期刊:Heterocycles, 页码:2299-2311 , 文章类型: Article,,卷期:2011年83-10]
- O(6)-Methylguanosine and 2-amino-6-chloropurine riboside derivative were treated with isoamylnitrite in the presence of an appropriate alcohol to give the corresponding 2-alkoxy-6-methoxy (or chloro) purine riboside deri...
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