Reusable Transition Metal Complex Catalyst for preparing 3,3-Diaminobenzidine

Reusable Transition Metal Complex Catalyst for preparing 3,3-Diaminobenzidine

Invention provides a reusable transition metal complex catalyst. Transition metal complex catalyst is useful for the preparation of high pure quality 3,3-diaminobenzidine and its analogues. Tetraaminobiphenyl prepared using transition metal catalyst is a valuable intermediate for example used as a monomer in the preparation of polybenzimidazole polymers.
Status of Patent: US Granted patent