2-氯苯并咪唑 、 对三氟甲基苯胺 在
N-(苯并咪唑-2-基)-4-(三氟甲基)苯胺 作用下,
以to give the title compound as the free base (white solid, mp 199-200° C.)的产率得到N-(苯并咪唑-2-基)-4-(三氟甲基)苯胺
参考文献:
名称:
2-(phenylamino) benzimidazole derivatives and their use as modulators of small-conductance calcium-activated potassium channels
Nickel-catalyzed Chan–Lam cross-coupling: chemoselective N-arylation of 2-aminobenzimidazoles
作者:K. Anil Kumar、Prakash Kannaboina、D. Nageswar Rao、Parthasarathi Das
DOI:10.1039/c6ob01307d
日期:——
A complementary set of Ni- and Cu-based catalyst systems for the selective N-arylation of 2-aminobenzimidazoles have been developed. Selective N-arylation of the primary amine (C-NH2) group was achieved by Ni-catalyzed, boronic acid promoted cross-coupling reactions in air, whereas, selective N-arylation of the azole nitrogen was achieved with Cu-catalysis and aryl halides. These protocols are general
BOP efficiently promoted the phosphonium-mediated cyclization of thioureas, leading to a convenient synthesis of 2-aminobenzimidazoles. Compared to conventional methods, the reactions were complete at room temperature with times ranging from a few minutes to 1 h in near quantitative yields. This method is also applicable to the synthesis of more challenging structures such as 2-akylaminobenzimidazoles
2-(Phenylamino) Benzimidazole Derivatives and Their Use as Modulators of Small- Conductance Calcuim-Activated Potassium Channels
申请人:Sorensen Ulrik Svane
公开号:US20090076106A1
公开(公告)日:2009-03-19
This invention relates to novel 2-(phenylamino)benzimidazole derivatives useful as modulators of small-conductance calcium-activated potassium channels (SK channels).
In other aspects the invention relates to the use of these compounds in a method for therapy and to pharmaceutical compositions comprising the compounds of the invention.