| 摘要 |
Disclosed are borate and boronate compounds of the formulae (I) and (II), where R1, R2 and R3 are independently hydrogen, straight or branched chain alkyl of 1 to 24 carbon atoms, straight or branched chain alkenyl of 2 to 24 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aryl of 6 to 10 carbon atoms, aralkyl of 7 to 15 carbon atoms, alkaryl of 7 to 15 carbon atoms; Ar is substituted or unsubstituted aryl of 6 to 10 carbon atoms; and R4 and R5 are independently defined as for R1, and may also be hydroxyphenyl or alkylated hydroxyphenyl, or R4 and R5 together with the -OBO- group form a substituted or unsubstituted 5 or 6 membered ring. The borate and boronate compounds are effective as antiwear, extreme pressure, and friction modifying additives for lubricating oils and fuels.
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