| 摘要 |
<p>Poly(oxyalkylene) aromatic amides having the formula: <CHEM> or a fuel-soluble salt thereof; wherein A is hydroxy, nitro, amino, N-alkylamino wherein the alkyl group contains 1 to 6 carbon atoms, or N,N-dialkylamino wherein each alkyl group independently contains 1 to 6 carbon atoms; R1 and R2 are each independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; R3 is hydrogen or lower alkyl having 1 to 6 carbon atoms; R4 is hydrogen or an acyl group of the formula: <CHEM> wherein A1 is hydroxy, nitro, amino, N-alkylamino wherein the alkyl group contains 1 to 6 carbon atoms, or N,N-dialkylamino wherein each alkyl group independently contains 1 to 6 carbon atoms; R5 and R6 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms and each R5 and R6 is independently selected in each -O-CHR5-CHR6-unit; R7 is hydrogen, alkyl having 1 to 100 carbon atoms, phenyl, aralkyl having 7 to 100 carbon atoms, alkaryl having 7 to 100 carbon atoms; R8 and R9 are each independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; x is an integer from 2 to 5; y is an integer from 0 to 2; and z is an integer from 5 to 100. The poly(oxyalkylene) aromatic amides of formula I are useful as fuel additives for the prevention and control of engine deposits.</p> |
