The substrate scope: 2,3-allenylic carbonatesa.
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Reaction conditions: 1 (1.0 mmol), 2 (1.5 mmol), Pd2dba3 (2.5 mol%), and Xantphos (10 mol%) in Et2O (5 mL) at rt; isolated yield.
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Reaction conditions: 1 (1.0 mmol), 2 (1.5 mmol), Pd2dba3 (2.5 mol%), and Xantphos (10 mol%) in Et2O (5 mL) at rt; isolated yield.