我们在这里报告通过噻唑并[3,2- a ]苯并咪唑鎓或苯并咪唑并[2,1- b ] [1,3]苯并噻唑的开环合成高度官能化的1,3-二氢-2H-苯并咪唑-2-酮-6-ium盐和醇盐异常的C–O键裂解。以高收率获得了多种带有原始N-硫代烯基或N-(邻硫代)芳基的苯并咪唑酮。先进的化学方法可快速有效地访问特权的苯并咪唑-2-酮骨架。
the Cu-catalyzed domino coupling of o-dihaloarenes with 2-mercaptobenzimidazoles. The reaction is also applicable to a series of multi-functional substrates, affording the halo-containing products with excellent selectivity. The brominated products can further react with arylboronic acids under Pd catalysis to furnish the aryl-substituted benzimidazo[2,1-b]benzothiazole derivatives.
通过邻二卤代芳烃与2-巯基苯并咪唑的铜催化多米诺偶联反应,可以高效,方便地合成各种苯并[ d ]苯并[4,5]咪唑并[ 2,1- b ]噻唑。该反应还适用于一系列多功能底物,从而提供具有优异选择性的含卤产物。溴化产物可以在Pd催化下进一步与芳基硼酸反应,得到芳基取代的苯并咪唑并[2,1- b ]苯并噻唑衍生物。
[EN] BENZIMIDAZOLO[2,1-B][1,3]BENZOTHIAZOLES FOR ELECTRONIC APPLICATIONS<br/>[FR] BENZIMIDAZOLO[2,1-B][1,3]BENZOTHIAZOLES POUR DES APPLICATIONS ÉLECTRONIQUES
申请人:BASF SE
公开号:WO2015014791A1
公开(公告)日:2015-02-05
The present invention relates to compounds of formula (I), a process for their production and their use in electronic devices, especially electroluminescent devices. When used as charge transport material and/or host material for phosphorescent emitters in electroluminescent devices, the compounds of formula (I) may provide improved efficiency, stability, manufacturability and/or spectral characteristics of electroluminescent devices.
Copper-Catalyzed Inter- and Intramolecular C–N Bond Formation: Synthesis of Benzimidazole-Fused Heterocycles
作者:Sk. Rasheed、D. Nageswar Rao、Parthasarathi Das
DOI:10.1021/acs.joc.5b01396
日期:2015.9.18
Cu (II)-catalyzed, inter/intramolecular C–N bond formation for the synthesis of various benzimidazole-fused heterocycles in a concise manner has been reported. The robustness of this reaction is demonstrated by the synthesis of a series of benzimidazole-fused heteroaromatics (e.g., pyrido[1,2-a] benzimidazole, benzimidazo[1,2-a]quinolines, benzimidazo [1,2-a]pyrazine, benzo[4,5] imidazo[2,1-b]thiazoles)
据报道,一种Cu(II)催化的,分子间/分子内CN键的形成可用于简明合成各种苯并咪唑稠合的杂环。通过一系列苯并咪唑稠合的杂芳族化合物(例如,吡啶并[1,2- a ]苯并咪唑,苯并咪唑[1,2- a ]喹啉,苯并咪唑并[1,2- a ]吡嗪)的合成证明了该反应的稳健性。一锅中直接来自2-氨基杂戊烯类和2-碘芳基硼酸的苯并[4,5]咪唑并[ 2,1- b ]噻唑类化合物 C–N键形成的新型级联方案是通过Chan–Lam型偶联的独特结合然后进行Ullmann型反应来进行的。