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- W27754394 abstract "Three methods for the selective 4-esterification of trimellitic anhydride (TMA) briefly reviewed are: (1) reaction of the acid chloride derivative of TMA with alcohols or phenols in the presence of stoichiometric quantities of a tertiary nitrogen base, (2) reaction between the carboxyl group of TMA and an ester of a low-boiling organic acid via a trans-acidolysis mechanism, and (3) thermal reaction of TMA with alcohols. A large number of esters prepared by these methods were evaluated as potential rust inhibitors in lubricating oils, and some differences in rust prevention were noted for esters resulting from the different modes of preparation. However, the data were in agreement that rust-preventing properties increase with increasing chain length in the ester moiety, and esters with more than 20 carbons in the chain performed excellently. The synthesis and applications of 4-tert-butyl pertrimellitate anhydride are described. The structure of the compound was also documented. (BLM)" @default.
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- W27754394 date "1981-08-01" @default.
- W27754394 modified "2023-09-28" @default.
- W27754394 title "Oil additive and telomer applications of 4-esters of trimellitic anhydride" @default.
- W27754394 hasPublicationYear "1981" @default.
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