| abstract |
the present invention relates to compounds having the formula (f-i) below in which r1 and r2, at each occurrence, are independently a c1-c5000 alkyl group; r3, at each occurrence, is independently hydrogen or a c1-c5000 alkyl group; r4 is a c1-c50 alkyl group or an unsubstituted or substituted phenyl group; r5, at each occurrence, is independently hydrogen or a c1-c30 alkyl group; n is 1, 2, 3 or 4; and m + n is 5. processes for the preparation of compounds of formula (f-i), as well as base stock and lubricating compositions containing compounds of formula (f-i), are also provided. |