93041-19-1Relevant academic research and scientific papers
Nucleophile singulett-carbene in der inversen [4+]-cycloaddition: Eine neue isopyrazol-synthese
Kuemmeil, Andreas,Seitz, Guenther
, p. 2743 - 2746 (2007/10/02)
Dimethoxycarbene, generated from the norbornadienone ketal 6 or from triethyl orthoformate 12a can be trapped by various 1,2,4,5-tetrazines 1 to yield the corresponding isopyrazoles 10 in high yields via [4+1]-cycloaddition followed by [4+2]-cycloreversio
