It is worth noting that Michael addition of HCN with imine corresponds to Strecker reaction and guanidine is one of the most commonly used catalysts for asymmetric synthesis of α-amino acids [29]. Although the convention bifunctional activation mode has been proposed for the guanidine-catalyzed ...
For the complexes with negatively charge assisted tetrel bonds the same Lewis acid units as for the former sub-sample interact with chloride anion. And for complexes linked by the pnicogen bond the ZH4+, ZFH3+ and ZF4+ species (Z = N, P and As) interact with HCN and LiCN through ...
It was found that the strength of interaction increases with the increase of the atomic number of the tetrel element and that for heavier tetrel elements the ZFH3 tetrahedral structure is more deformed towards the structure with the planar ZH3 fragment. The results of calculations show that the ...