First, p-bromomandelic acid, p-methyimandelic acid, p-methoxymandelic acid and p-mercaptophenol were synthesized, then four thienobenzofuranones and four benzofuroindolediones were prepared by condensation of mandelic acid or substituted mandelic acids with p-mercaptophenol and p-acetylaminophol respectively.

Correlation of Structure of Benzofuranones with Proceesing Stability;

Irganox HP-136(3-arylbenzofuranones)have been found to be fast acting radical scavengers,which can efficiently trap carbon-centered radicals.

Role of 3-Arylbenzofuranone in BOPP Stabilization;

Stabilizing Mechanism of 3-Arylbenzofuranone and Its Stabilization in BOPP;

Antioxygenation Performance of Benzofuranone Ternary Composite Antioxidant on PP;