Add time:08/28/2019         Source:sciencedirect.com

1.1. Eight amides (amidoesters and triamides) of thiophosphoric acids were synthesized, four of which have not been described in the literature.2.2. The replacement of the alkoxy group by an amido-group in thiophosphoric acid esters increases the antioxidizing activity of compounds; all the amidoesters and triamides of thiophosphoric acids tested inhibit oxidation hydrocarbons to a greater extent than esters free from amido-groups.3.3. The efficiency of amides as antioxidants is influenced by the structure and number of amido-groups; amidoesters containing a monoalkylamido-group, R (H)N-and thiophosphoric acid traimides are the most active.

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