The interaction of boron halides with silyl cyanides

Synthesis and examination of amine-cyanocarboxyboranes, the boron analogues of α-cyanocarboxylic acids: X-ray structural study of the first lactam containing a boron atom in the lactam ring

“…One group of reactions was based on earlier examples for the formation of B-CN bond. These experiments included a variety of reactions between A AE BH 2 COOR or A AE BH(Br)COOR (R = H, Me) and either Hg(CN) 2 [23], Me 3 SiCN [24], or AgCN [25]. Considering the ability of trityl cation to abstract hydride from boron [26], the reaction between A AE BH 2-COOMe and Ph 3 CCN [27] was also tested.…”