100375-14-2Relevant articles and documents
Ruthenium carbonyl-catalyzed deoxygenation by carbon monoxide of o-substituted nitrobenzenes. Synthesis of benzimidazoles
Crotti, Corrado,Cenini, Sergio,Ragaini, Fabio,Porta, Francesca,Tollari, Stefano
, p. 283 - 298 (1992)
Ru3(CO)12 is a very efficient catalyst for the deoxygenation of 2-nitro-N-(phenylmethylene) benzeneamine derivatives to give the corresponding 2-substituted benzimidazoles, at 220°C and 50 bar of carbon monoxide. Main byproducts are the corresponding amines. The same benzimidazoles are also obtained starting from o-nitroaniline and the corresponding aldehyde. When N-(2-nitrophenyl)methylene benzencamine derivatives are used as substrates, the reaction changes dramatically and only traces of the corresponding heterocyclic compounds are obtained, although complete conversion of the starting nitro compounds is achieved.
Three-Way Chemoselectivity Switching through Coupled Equilibria
Puangsamlee, Thamon,Miljani?, Ognjen ?.
supporting information, p. 5900 - 5904 (2020/08/05)
Controlling the chemoselectivity of reactions operating on complex mixtures, including those found in biological and petrochemical feedstocks or in the primordial soup from which life emerged, is generally challenging. The selectivity of imine oxidation c
An efficient and environmental benign synthesis of 2-benzimidazoles and 2-benzothiazoles using CeCl3-NaI as catalyst
Zhu, Xun,Wei, Yunyang
, p. 119 - 121 (2013/04/23)
A one-pot condensation of an aldehyde with 1,2-phenylenediamine or 2-aminothiophenol in dimethyl carbonate at 100°C under O2 in the presence of catalytic amounts of CeCl3-NaI gave an imine intermediate, which cyclised and dehydrogenated to give 2-arylbenzimidazoles or 2-arylbenzothiazoles in good yields.
