74618-08-9Relevant academic research and scientific papers
(1)BENZOPYRANO(4,3-c)PYRAZOLES BY INTRAMOLECULAR NITRILE IMINE ADDITION TO ACETYLENES
Janietz, Dietmar,Rudorf, Wolf-Dieter
, p. 1661 - 1666 (2007/10/02)
2-Alkynyloxy-benzaldehydes 1 are obtained by alkylation of the corresponding salicylaldehydes either with p-toluenesulfonic acid propargylester or 1-acetoxy-4-chloro-but-2-yne.The aldehydes 1 are converted into the hydrazones 2 by reaction with p-toluenes
Intramolecular Cycloaddition Reactions of N-Sulfonyl Nitrile Imides Bearing Alkenyl Groups
Shimizu, Tomio,Hayashi, Yoshiyuki,Nagano, Yoshio,Teramura, Kazuhiro
, p. 429 - 434 (2007/10/02)
The reaction of the p-tolyl(or phenyl)sulfonylhydrazones of some 2-(alkenyloxy)benzaldehydes with lead tetraacetate leads, via the nitrile imide intermediates, Ar-C(+)=N-N(-)-SO2-C6H4-X-p, to intramolecular 1,3-dipolar cycloadducts and 1-acetyl-2-aroyl-1-
