ESTERS OF POLYALKYL OR POLYALKENYL N-HYDROXYALKYL SUCCINIMDES AND FUEL COMPOSITIONS CONTAINING THE SAME

摘要

Esters of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides having the formula: or a fuel soluble salt thereof; wherein R is a polyalkyl or polyalkenyl group having an average molecular weight in the range of about 450 to about 5,000; n is an integer from 2 to 5; and Z is a moiety selected from the group consisting of wherein R1 is a hydroxy, nitro, cyano or -(CH2) x -NR3R4, wherein R3 and R4 are independently hydrogen or lower alkyl of 1 to 6 carbon atoms and x is 0 or 1; and R2 is hydrogen, hydroxy, nitro, cyano or -(CH2) y -NR5R6, wherein R5 and R6 are independently hydrogen or lower alkyl of 1 to 6 carbon atoms and y is 0 or 1. The compounds of formula 1 are useful as fuel additives for the prevention and control of engine deposits.