Title of article
An unexpected aromatization during the N-alkylation reaction of 3,4-dihydro-1H-pyrazole derivatives: insight into the reaction mechanism
Author/Authors
Lَpez-Cara، نويسنده , , Luisa C. and Encarnaciَn Camacho، نويسنده , , M. and Carriَn، نويسنده , , Marيa D. and Gallo، نويسنده , , Miguel A. and Espinosa، نويسنده , , Antonio and Entrena، نويسنده , , Antonio، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2006
Pages
4
From page
6239
To page
6242
Abstract
In this letter we describe the unexpected aromatization that takes place during the N-alkylation reaction performed on several 3-(2-nitrobenzoyl)-4,5-dihydro-1H-pyrazole-5-carboxylic acid methyl esters, giving rise to a mixture of 1-alkyl-3-(2-nitrobenzoyl)-4,5-dihydro-1H-pyrazole-5-carboxylic acid methyl esters and 1-alkyl-3-(2-nitrobenzoyl)-1H-pyrazole-5-carboxylic acid methyl esters.
Keywords
?2Pyrazoline , 1H-Pyrazole , redox
Journal title
Tetrahedron Letters
Serial Year
2006
Journal title
Tetrahedron Letters
Record number
1852158
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