A one-pot regioselective synthesis of benzo[d]imidazo[2,1-b]thiazoles
作者:Xinhai Zhang、Jiong Jia、Chen Ma
DOI:10.1039/c2ob26211h
日期:——
Benzo[d]imidazo[2,1-b]thiazole analogues were synthesized via a one-pot metal-free procedure. A series of benzene and pyridine substrates were employed to the methodology. The desired products were generated in moderate to good yields. The effect of substituent group had also been studied.
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.
Iodine-catalyzed convergent aerobic dehydro-aromatization toward benzazoles and benzazines
作者:Xiaolong Tuo、Shanping Chen、Pingyu Jiang、Penghui Ni、Xiaodong Wang、Guo-Jun Deng
DOI:10.1039/c9ra10964a
日期:——
has been developed, providing straightforward and efficient access to various benzoazoles and benzoazines. The present transition-metal-free protocol enables the dehydro-aromatization of tetrahydrobenzazoles and tetrahydroquinolines with molecularoxygen as the green oxidant, along with some other N-heterocycles. Hence, a broad range of heteroaromatic compounds are generated in moderate to good yields