4,4'- BIS-(4,4'- DIBENZYLIDENE)-BIS-(CARBONYL)-DIPHTHALIC ANHYDRIDE AS MONOMER FOR PRODUCTION OF HEAT RESISTANT POLYMERS

摘要

FIELD: organic chemistry. SUBSTANCE: desired product has essential formula C₄₆H₃₀O₈, its yield being 96 its melting point being 193-195 C. 4-chloroformyl phthalic anhydride is used as reagent 1, dibenzyl is used as reagent 2. The process is carried out at 30-40 C in the presence of aluminium chloride, o-dichlorobenzene being used as solvent. EFFECT: improves quality of desired product. 1 tbl