 However, in comparison conventional Piers-type hydrosilyation, asymmetric Piers-type hydrosilylations are not as well developed

In the following example, the chiral alkenylborane is formed in situ from chiral diyne and the HB(C6F5)2.Heterolytic cleavage of Si-H bond from PhMe2SiH by the FLP catalyst, forms a silylium and hydridoborate ionic complex.Metal free hydrogenation of unactivated internal alkynes to "cis"-alkenes is readily achieved using FLP-based catalysts.