Alkylated 2,2'-biphenylene phosphonates and stabilized compositions

摘要

Alkylated 2,2'-biphenylene phosphonates are prepared by reacting alkylated 2,2'-biphenol with phosphoros trichloride in an organic solvent and then with a base such as sodium hydroxide. Said phosphonates are useful as stabilizers of organic polymers and lubricating oils, especially as stabilizers for polyolefins, polyesters, and polycarbonates.