INDEX protect amines

Examples of the protection of alkynes, carboxylic acids, alcohols, phenols, aldehydes, amides, amines, esters, ketones, and alkenes are also indexed on p. xvii. Section (designated with an A 15A, 30A, etc.) with protecting group reactions are located at the end of pertinent chapters. 

The relationships of oxidation potential to radical reactivity index Sr and nucleophilic reactivity index Sn illustrated in Figure 4 are very similar to those with antioxidation and antiozonization, where the maximum values were observed at 0.4 and 0.25 volt. Therefore, antioxidation seems to proceed by a radical mechanism in contrast to the nucleophilic type of antiozonization. Indeed, the antioxidation effect of amines toward NR, SBR, BR, and HR is well correlated with radical reactivity as shown in Figures 5-8. The protection of SBR solution by amines from oxidative degradation and the termination of chain reaction in the oxygen-Tetralin system are also shown as functions of Sr in Figures 9 and 10. 

Examples of the protection of carboxylic acids, alcohols, phenols, aldehydes, amines, and ketones are also indexed on page xi. 

Auxiliaries are similar to those used for - lubricants and are added to protect the metal surface from damage, such as extreme pressure additives (EP) for heavy loads and fatty acid derivatives for lighter loads (anti-wear additives). Fatty acid salts and sulfonates are corrosion inhibitors, while sulfonates and amines act as dispersants to prevent deposits. Viscosity index improvers based on polymethacrylates of - fatty alcohols reduce the temperature sensitivity of viscosity and lower the pour point. 

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