1242028-47-2Relevant academic research and scientific papers
Microwave-assisted selective synthesis of 2H-indazoles via double Sonogashira coupling of 3,4-diiodo-pyrazoles and bergman-masamune cycloaroma-tization
Ichikawa, Hayato,Ohfune, Haruhiko,Usami, Yoshihide
experimental part, p. 1651 - 1659 (2011/04/15)
The microwave-assisted double Sonogashira coupling of 3,4-diiodo-1-trityl and 1-phenylpyrazole with terminal acetylene took only three minutes. Dialkynylpyrazoles, the coupling products, were heated at 240 °C in the presence of 1,4-cyclohexadiene to obtai
