A toluene solution of freshly prepared 2 (1.0 g, 2.73 mmol) was added drop by drop to a cold suspension of freshly sublimed AlCl3 (0.36 g, 2.73 mmol) in toluene at -78 C.
A toluene solution of freshly prepared2 (1.0 g, 2.73 mmol) was added drop by drop to a coldsuspension of freshly sublimed AlCl3 (0.36 g, 2.73 mmol) intoluene at -78 C.