122835-16-9Relevant 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
