showed that in situ generated iminosilanes could activate C -H bonds to yield an amidesilane . Braunschweig and coworkers described the cleavage of C -H bonds over a B --N bond, yielding aminoboranes . A phosphanyl-phosphogallene was also reported in 2020 to have FLP-like activity . Following a series of studies of C -H activation of polarizable or enolizable bonds on (NacNac) and X = PR ), Nikonov et al. used an in situ generated NacNac gallium imide, (X = NR) to cleave unactivated C -H bonds . In the latter work, gallium imide was formed by the reaction of an aromatic gallium molecule with an azide, expelling nitrogen gas in the process. This imide has been shown to react in situ with a wide range of C -H bonds on molecules including ketones, esters, and pyridine .