Redistribution reaction on a six-fold coordinated Sn(IV) atom and reactions towards axially unsymmetric substituted Sn(IV) porphyrins

Investigations of the Kocheshkov redistribution reaction were performed on the six fold coordinated tin(IV) atom using the axially coordinated Sn(IV) meso-tetra-phenylporphyrin system with axially trans di-chloro and trans di-acetylido substituted derivatives. The immobile four dentate porphyrin ligand enables the detailed investigation of these typically complex reaction systems on higher coordinated tin(IV) species. The thermally activated reaction displays an equilibrium. Further on, a series of axial unsymmetrically substituted Sn(IV) porphyrins are selectively synthesized and described.