Title of article
Highly stereocontrolled [2+2] cycloaddition versus unprecedented imino-ene reactions of imino-ketenimines
Author/Authors
Alajar??n، نويسنده , , Mateo and Vidal، نويسنده , , Angel and Tovar، نويسنده , , Fulgencio and S?nchez-Andrada، نويسنده , , Pilar، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2002
Pages
3
From page
6259
To page
6261
Abstract
N-[(2-Benzylideneamino)phenyl]-C-methylketenimines undergo intramolecular cyclization via two different reaction pathways, a [2+2] cycloaddition and a rare imino-ene reaction, to yield azeto[1,2-a]benzimidazoles and 2-(α-styryl)benzimidazoles, respectively. The results are interpreted in terms of a two-step mechanism involving two stereoisomeric conjugated betaines as intermediates.
Keywords
imines , Cycloadditions , ene reactions , Ketenimines
Journal title
Tetrahedron Letters
Serial Year
2002
Journal title
Tetrahedron Letters
Record number
1653452
Link To Document