The preparation and properties of 12 tetrachloroterephthalate esters are reported. Several different types are described. Properties of the di-n-alkyl esters are compared with those of the isomeric ortho esters. The tetrachloroterephthalates are higher melting and have less tendency to form molecular complexes with aromatic hydrocarbons. Alkyl tetrachloroterephthalates resist saponification and transesteriflcafion. Several synthetic methods are illustrated. Some infrared absorption characteristics are also given.
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