Title of article :
Efficient synthesis of 2-(pyrazol-3-yl)benzimidazoles from 3-arylacylidene-3,4-dihydroquinoxalin-2(1H)-ones and hydrazine hydrate via a novel rearrangement
Author/Authors :
Mamedov، نويسنده , , Vakhid A. and Murtazina، نويسنده , , Anna M. and Gubaidullin، نويسنده , , Aidar T. and Hafizova، نويسنده , , Elena A. and Rizvanov، نويسنده , , Il’dar Kh.، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2009
Abstract :
A highly efficient method for the synthesis of 2-(pyrazol-3-yl)benzimidazoles has been developed on the basis of the novel ring contraction of 3-arylacylidene-3,4-dihydroquinoxalin-2(1H)-ones with hydrazine hydrate.
Keywords :
Dihydroquinoxalin-2(1H)-one , Benzimidazole , Ring contraction , Novel rearrangement , Pyrazolylbenzimidazoles , Hydrazine hydrate
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
