Optimization of the reaction of phthalic anhydride with P4S10

Abstract

Polyisothianaphthene can be synthesized by reaction of phthalic anhydride with P4S10. To make the reaction economically, as well as ecologically acceptable it was necesary to increase the yield of PITN. Therefore, the influence of reaction parameters such as reaction time, quantity of xylene and catalyst were investigated. Changing these parameters a yield of 85% was achieved what is almost double the value achieved in previous experiments.