Recently, bismuth(III) triflate has attracted the attention of synthetic organic chemists because it is inexpensive and it can be easily prepared even on multi-gram scale in the laboratory from commercially available bismuth(III) oxide and triflic acid. 8 Owing to its unique catalytic properties, bismuth(III) triflate has been extensively used for a plethora of organic transformations. 9 However, there have been no reports on the conjugate addition of ...
