A solution of stannane 6a (0.100 g, 0.27 mmol), N-phenylselenophthalimide (0.121 g, 0.4 mmol) and p-toluenesulfonic acid (0.010 g, 0.05 mmol) in 1,2-dichloroethane (0.5 mL) was heated to reflux under a nitrogen atmosphere for 12 h. The solution was cooled to room temperature and the solvent removed on a rotary evaporator. Purification was achieved by flash chromatography on silica gel using hexane as the eluent; two fractions were collected. The less polar ...
[Cohen, Theodore; Gibney, Heather; Ivanov, Roman; Yeh, Edmund A.-H.; Marek, Ilan; Curran, Dennis P. Journal of the American Chemical Society, 2007 , vol. 129, # 49 p. 15405 - 15409]