The resulting suspension was stirred for 1 h, followed by the drop wise addition of ((2bromophenyl)ethynyl)trimethylsilane (28) (0.61 g, 2.4 mmol, 1.1 equiv). The resulting suspension was stirred for 6 h at RT. A saturated solution of NaHCO3 (10 mL) was then added and the mixture was stirred vigorously for 1 h resulting in a persistent emulsion/suspension.