Title of article :
A novel 2:1 cycloadduct of dimethyl acetylenedicarboxylate with 3,5-diphenyl-4-methoximino-4H-pyrazole 1,2-dioxide
Author/Authors :
Kilpatrick، نويسنده , , Andre L. and Nagulapalli، نويسنده , , Kalyan and Esken، نويسنده , , Joel M. and Ferrence، نويسنده , , Gregory M. and Hansen، نويسنده , , John F.، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2003
Abstract :
Two equivalents of dimethyl acetylenedicarboxylate react with 3,5-diphenyl-4-methoximino-4H-pyrazole 1,2-dioxide in acetonitrile under reflux. The major product was shown by X-ray analysis to be a 5,8-epoxyisoxazolo[2,3-d]-[1,4]-diazepine derivative.
Keywords :
Alkynes , Cycloadditions , Isoxazolines , pyrazoles , N-oxides , Rearrangements
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
