aerobic oxidative synthesis of 2-arylbenzo[d]oxazoles, 2-substituted benzo[d]thiazoles, and 1,2-disubstituted benzo[d]imidazoles. N-Heterocyclic carbene (NHC), generated in situ from easily available N-heterocyclic imidazolium salt with air as terminal oxidant, has successfully been utilized as a cheap and efficient catalyst for one-pot aerobic oxidative synthesis of 2-arylbenzo[d]oxazoles, 2-substituted
摘要 N-杂环卡宾(NHC)是由易获得的N-杂环咪唑盐以空气为末端氧化剂原位生成的,已成功地用作便宜且有效的一锅好氧氧化合成2-芳基苯并[ d ]恶唑的催化剂,2-取代的苯并[ d ]噻唑和1,2-二取代的苯并[ d ]咪唑。 N-杂环卡宾(NHC)是由易获得的N-杂环咪唑盐以空气为末端氧化剂原位生成的,已成功地用作便宜且有效的一锅好氧氧化合成2-芳基苯并[ d ]恶唑的催化剂,2-取代的苯并[ d ]噻唑和1,2-二取代的苯并[ d ]咪唑。
Synthesis of hetaryl-substituted benzoxazoles<i>via</i>oxidative cyclization of phenolic schiff's bases
作者:Kadri G. Ozokan、Mustafa K. Gumus、Seniz Kaban
DOI:10.1002/jhet.5570450643
日期:2008.11
2-(1H-Pyrrol-2-yl)benzo[d]oxazoles, 4-(benzo[d]oxazol-2-yl)quinoline and 2-(benzo[d]oxazol-2-yl)-4,6-dimethylquinolines were obtained in good yield by the oxidative intramolecular ring closing reactions of phenolicSchiff'sbases with the effect of manganese triacetate.
2-(1 H-吡咯-2-基)苯并[ d ]恶唑,4-(苯并[ d ]恶唑-2-基)喹啉和2-(苯并[ d ]恶唑-2-基)-4,6通过酚类席夫碱的氧化性分子内闭环反应和三乙酸锰的作用,可以得到高产率的-二甲基喹啉。
Synthesis and characterization of the titanium catalysts supported by pyrrolide-benzoxazole ligands and their application in ethylene polymerization