Abstract
The reactions of o-phenylenediamine with 1,2,3-triketone 2-arylhydrazones containing alkyl substituents result in the predominant formation of 1-(benzimidazol-2-yl)-1,2-dioxoalkane arylhydrazones, whereas phenyl-substituted analogues afford 2-phenylbenzimidazole.
References
1.
Pashkevich K.I., Saloutin V.I., Postovskii I.Y.
Russian Chemical Reviews,
1981
2.
Barltrop J.A., Richards C.G., Russell D.M., Ryback G.
Journal of the Chemical Society (Resumed),
1959
3.
10.1070/MC2003v013n05ABEH001788_bib3
Pashkevich
Izv. Akad. Nauk SSSR, Ser. Khim.,
1980
4.
10.1070/MC2003v013n05ABEH001788_bib4
Krokhalev
Izv. Akad. Nauk SSSR, Ser. Khim.,
1990
5.
10.1070/MC2003v013n05ABEH001788_bib5
Porai-Koshits
Zh. Org. Khim.,
1947
6.
Elderfield R.C., McCarthy J.R.
Journal of the American Chemical Society,
1951
7.
10.1070/MC2003v013n05ABEH001788_bib7
Organicum: Organisch-chemisches, Grundpraktikum,
1976