1418363-66-2Relevant articles and documents
Access to aromatic ring-fused benzimidazoles using photochemical substitutions of the benzimidazol-2-yl radical
Oconnell, Joanne M.,Moriarty, Eoin,Aldabbagh, Fawaz
, p. 3371 - 3377,7 (2012/12/12)
Photochemical five-, six-, and seven-membered cyclizations from 2-iodo-1-(ω-arylalkyl)-1H-benzimidazoles are described. This method of producing aromatic ring-fused benzimidazoles is significantly more efficient than literature radical protocols using chemical initiators, although 2-iodo-1-(ω-pyridin-2-ylalkyl)-1H-benzimidazoles preferentially undergo a nucleophilic ipso-substitution onto the benzimidazole-2-position.
