Bicyclic-guanidines, -guanidinates and -guanidinium salts: wide ranging applications from a simple family of molecules†
Abstract
Bicyclic guanidines have physical, electronic and chemical properties that differentiate them from their acyclic counterparts, with many of these characteristics directly imposed by the rigid framework. These distinctive features have led to this class of molecule finding practical applications in many areas of chemistry, including organocatalysis and as ligands in coordination compounds. In addition to the neutral molecules, the corresponding cationic (guanidinium) and anionic (