| abstract |
PROBLEM TO BE SOLVED: To provide a compound which has low volatility for a given viscosity profile and can be used as a basic raw material suitable for use in a lubricating oil composition for an internal combustion engine, and a base oil containing the compound. And the provision of a lubricating oil composition containing the base oil. In some embodiments, the compound is of formula (1). In the formula, R 1 and R 2 are alkyl, or cycloalkyl grouped with the carbon atom to which they are bonded, and R 3 , R 4 and R 5 are H or alkyl. R 6 is an alkyl or the like, and m and n are 0, 1, 2, or 3 provided that m is 0 when R 4 and R 5 are H. [Selection diagram] None |