Copper-Catalyzed Synthesis of 2-Unsubstituted, <i>N</i>-Substituted Benzimidazoles
作者:Keiichi Hirano、Akkattu T. Biju、Frank Glorius
DOI:10.1021/jo902160y
日期:2009.12.18
An efficient copper-catalyzed intramolecular arylation of formamidines forming 2-unsubstituted benzimidazoles in excellent yields is reported. Sixteen examples bearing sterically demanding substituents on nitrogen like Mes, 2,6-diisopropylphenyl, or 2-tert-butylphenyl and tolerating various functional groups demonstrate the utility of this method.
Jaeger; Blanksma, Recueil des Travaux Chimiques des Pays-Bas, 1906, vol. 25, p. 362
作者:Jaeger、Blanksma
DOI:——
日期:——
KAJIGAESHI, SHOJI;KAKINAMI, TAKAAKI;SHIMIZU, MICHIKAZU;TAKAHASHI, MAKOTO;+, TECHNOL. REPTS YAMAGUCHI UNIV., 4,(1988) N, C. 139-143