Metal-free synthesis of 3,5-disubstituted 1H- and 1-aryl-1H-pyrazoles from 1,3-diyne-indole derivatives employing two successive hydroaminations

The uncatalyzed synthesis of 3,5-disubstituted 1<italic>H</italic>- and 1-aryl-1<italic>H</italic>-pyrazoles derived from 1,3-diyne indoles was successfully ...