1314451-06-3Relevant academic research and scientific papers
Cyclization of alk-4-ynals with o-diaminoarenes as a selective one-pot synthesis of arylmethylidene-substituted 2,3-dihydro-1H-pyrrolo[1,2-a]benzimidazoles and 7,8-dihydro-6H-pyrrolo[1’,2’:1,2]imidazo[4,5-b]pyridines
Gvozdev,Shavrin,Baskir,Egorov,Nefedov
, p. 1829 - 1838 (2016)
A one-pot synthesis of arylmethylidene-substituted 2,3-dihydro-1H-pyrrolo[1,2-a]benzimidazoles based on the reaction of alk-4-ynals with 1,2-diaminobenzenes in DMSO at sequential catalysis with NH4Br and bases was suggested. The use in these pr
Stereoselective one-pot synthesis of (1Z)- and (1E)-1-arylmethylidene-2,3-dihydro-1H-pyrrolo[1,2-a]benzimidazoles by cyclization of alk-4-ynals with o-diaminobenzene
Gvozdev, Valentin D.,Shavrin, Konstantin N.,Egorov, Mikhail P.,Nefedov, Oleg M.
, p. 3 - 5 (2016)
Cyclization of alk-4-ynals with o-diaminobenzene in DMSO under the sequential action of NH4Br and base (KOH or K2CO3) affords 1-arylmethylidene-2,3-dihydro-1H-pyrrolo[1,2-a]benzimidazoles, which are formed selectively as E- or Z-isomers depending on the base used.
An effective synthetic entry to fused benzimidazoles via iodocyclization
Zhang, Xu,Zhou, Yu,Wang, Hengshuai,Guo, Diliang,Ye, Deju,Xu, Yungen,Jiang, Hualiang,Liu, Hong
, p. 1429 - 1437 (2011/08/03)
A protocol for the synthesis of the fused heterocyclic polycyclic compounds pyrrole[1,2-a]benzimidazoles, piperidine[1,2-a]benzimidazoles and oxa-fused benzimidazoles using iodine and silver nitrate by an exo-dig or endo-dig cyclization pathway at room te
