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Scope with boronic pinacol esters. Yields of isolated products are given. Reaction conditions: 1 a–1 q (0.2 mmol), 2 d (0.8 mmol), PC(1) (2 mol %), LB (20 mol %), irradiation supplied by a commercial blue LED strip (14.4 W at 450 nm). * Yield determined by 1H NMR analysis of the crude reaction mixture with CH2Br2 as an internal standard.
