应该是: 氟化氢的三氟化硼乙醚溶液
T. Oberhauser, " A New Bromination Method for Phenols and Anisoles: NBS/HBF4 Et2O In CH3CN ", J. Org. Chem. 62, 4504-06 (1997).OBERHAUSER T. A new bromination method for phenols and anisoles:NBS/HBF4@Et2O in CH3CN[J].Journal of Organic Chemistry,1997,(13):4504-4506....
T. Oberhauser, " A New Bromination Method for Phenols and Anisoles: NBS/HBF4 Et2O In CH3CN ", J. Org. Chem. 62, 4504-06 (1997).OBERHAUSER T. A new bromination method for phenols and anisoles:NBS/HBF4@Et2O in CH3CN[J].Journal of Organic Chemistry,1997,(13):4504-4506....