76889-76-4Relevant articles and documents
One-Pot Synthesis of Benzo[4,5]imidazo[2,1-a]isoquinolines and Isoquinolino[3,4-b]quinoxalines via Tandem Cyclization Strategies
Bagdasarian, Alex L.,Nguyen, Huy H.,Palazzo, Teresa A.,Fettinger, James C.,Haddadin, Makhluf J.,Kurth, Mark J.
, p. 3924 - 3928 (2016)
Two operationally simple one-pot protocols have been developed for the synthesis of amino-functionalized benzo[4,5]imidazo[2,1-a]isoquinolines and isoquinolino[3,4-b]quinoxalines. Optimization data and substrate scope for these atom-economical transformat
Solid Phase Synthesis of Biologically active Benzimidazole Derivatives Catalysed by CH3S03H-Si02 under Solvent free Condition
Datta, Arup,Roy, Sanjay
, p. 537 - 543 (2020/07/23)
A simple an expeditious method was established for the synthesis of 2-Substituted-1H-Benzimidazole derivatives at 90°C using o-phenylenediamine and different aldehydes. It has been found that a mixture of Methanesulphonic acid-Si02to be an effective catal
Cu(OAc)2-Mediated benzimidazole-directed C-H cyanation using 2-(4-methylpiperazin-1-yl)acetonitrile as the cyano source
Zhang, Tianyou,Qiao, Jingyi,Song, He,Xu, Feng,Liu, Xiaochong,Xu, Chunzhao,Ma, Junjie,Liu, Hao,Sun, Zhizhong,Chu, Wenyi
supporting information, p. 9084 - 9089 (2019/06/18)
A new protocol for the Cu(OAc)2-mediated cyanation of arenes using benzimidazole as the directing group with 2-(4-methylpiperazin-1-yl)acetonitrile as the cyano source was developed. A series of cyano derivatives were facilely and conveniently obtained in moderate to good yields by using this method. The C-H activation catalytic system was originally applied to the C(sp2)-H cyanation of the aryl/heteroaryl to synthesize 2-(1H-benzo[d]imidazol-2-yl)aryl nitriles. There were 19 new compounds in the synthesized 20 cyanide products. In this reaction, 2-(4-methylpiperazin-1-yl)acetonitrile as the cyano source was originally employed in the C(sp2)-H cyanation of the arenes. In addition, a fluorescent material 5a was obtained by derivative reactions of the obtained cyanide product 3.