- 2-METHYL- AND 2-DIMETYLAMINOQUINO[4,3-e]-1,2,4-THIADIAZINE 4,4-DIOXIDES - SYNTHESIS, STRUCTURE AND N-METHYLATION
[作者:CHROBAK ELWIRA; WLEKLINSKI MICHAL; MASLANKIEWICZ ANDRZEJ; KUSZ JOACHIM; ZUBKO MACIEJ; ZIEBA ANDRZEJ,期刊:Heterocycles, 页码:1799-1810 , 文章类型: Article,,卷期:2010年81-8]
- Reaction of 4-chloro-3-quinolinesulfonyl chloride (1) with acetamidine or with N,N-dimethyl- and N,N,N'-trimethylquanidine salts led directly or stepwise via 4-chloro-3-quinolinesulfonylguanidine (6a) to the title 2-subs...
- ONE-POT TWO-STEP SYNTHESIS OF N3-FUNCTIONALIZED 3,4-DIHYDROPYRIMIDINONES IN THE PRESENCE OF TMSCI
[作者:QUAN ZHENGJUN; REN RONGGUO; DA YUXIA; ZHANG ZHANG; JIA XIAODONG; YANG CAIXIA; WANG XICUN,期刊:Heterocycles, 页码:1827-1841 , 文章类型: Article,,卷期:2010年81-8]
- Novel 3,4-dihydropyrimidinones modified with N3-alkyloxymethyl, aminomethyl, arylsulfonylmethyl, and azidomethyl groups can be regioselectively obtained over their isomeric NI compounds in good yields by reaction of 3,4-...
- NOVEL SYNTHESIS OF 2-ALKOXY(ARALKOXY)-5-CHLORO[1,2,4]TRIAZOLO[1,5-a]QUINAZOLINES AND THEIR DERIVATIVES
[作者:ALSALAHI RASHAD; GEFFKEN DETLEF,期刊:Heterocycles, 页码:1843-1859 , 文章类型: Article,,卷期:2010年81-8]
- 2-Alkoxy(aralkoxy)-5-chloro[1,2,4]triazolo[1,5-a]quinazolines have been synthesized. The corresponding 2-alkoxy(aralkoxy)[1,2,4]triazolo[1,5-a]quinazolin-5-ones were chlorinated with either oxalyl chloride or phosphorus ...
- AN EFFICIENT AND CONVENIENT SYNTHESIS OF 4,5,6,7-TETRAHYDROTHIENO[3,2-c]PYRIDINES BY A MODIFIED PICTET-SPENGLER REACTION VIA A FORMYLIMINIUM ION INTERMEDIATE
[作者:KITABATAKE MICHIKAZU; HASHIMOTO AKI; SAITOH TOSHIAKI; SANO TAKEHIRO; MOHRI KUNIHIKO; HORIGUCHI YOSHIE,期刊:Heterocycles, 页码:1903-1921 , 文章类型: Article,,卷期:2010年81-8]
- A synthesis of N-formyl-4,5,6,7-tetrahydrothieno[3,2-c]pyridines (5) was achieved in a highly efficient manner via trifluoroacetic acid catalyzed cyclization of formyliminium ion (4), which was produced by imination of 2...
- NAPHTHOPYRONES FROM CULTURED LICHEN MYCOBIONTS OF PYRENULA SP.
[作者:TAKENAKA YUKIKO; NAGAKURA NAOTAKA; HAMADA NOBUO; TANAHASHI TAKAO,期刊:Heterocycles, 页码:1931-1935 , 文章类型: Article,,卷期:2010年81-8]
- Spore-derived mycobionts of the lichen Pyrenula sp. were cultivated on a malt-yeast extract medium supplemented with 10% sucrose and their metabolites were investigated. A new naphthopyrone derivative, pyrenulin, as well...
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