... The Journal of Organic Chemistry. ... general silylation procedure afforded 0.2773 g (100%) of 9-(3-(trimethylsilyl)prop-2-ynyl)-9H-carbazole as a white solid after flash chromatography (hexanes/EtOAc: 95/5): mp 128−129 °C; 1 H NMR (300 MHz, CDCl 3 ) δ 7.98 (d, J = 7.72 Hz ...