Title of article
Reactions of 2-Unsubstituted 1H-Imidazole 3-Oxides with Heterocumulenes and Dimethyl Acetylenedicarboxylate
Author/Authors
Grzegorz Mloston، نويسنده , , Tomasz Gendek، نويسنده , , Heinz Heimgartner، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2000
Pages
8
From page
5405
To page
5412
Abstract
Reaction of 2-unsubstituted 1H-imidazole 3-oxides with isocyanates, isothiocyanates, and dimethyl acetylenedicarboxylate led to the formation of 2-functionalized imidazole derivatives. Stepwise reaction mechanisms via zwitterionic intermediates are proposed. The intermediate [3+2] cycloadducts stabilize via extrusion of COX or ring opening.
Keywords
imidazole N-oxides , Isocyanates , Isothiocyanates , acetylenedicarboxylate
Journal title
Tetrahedron
Serial Year
2000
Journal title
Tetrahedron
Record number
1081036
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