초록 ▼

Alkylphenoxy alkanoic esters are made in high yield by reaction of a C50-200 alkylphenol with a halo-substituted alkanoic ester in the presence of a base. The reaction product contains little unreacted alkylphenol and is converted without separation to a reaction mixture containing mainly alkylpheno

Alkylphenoxy alkanoic esters are made in high yield by reaction of a C50-200 alkylphenol with a halo-substituted alkanoic ester in the presence of a base. The reaction product contains little unreacted alkylphenol and is converted without separation to a reaction mixture containing mainly alkylphenoxy alkanoic amide by reaction with amines. The amide reaction mixture is an effective ashless dispersant for lubricating oil.

대표청구항 ▼

A process for making a high molecular weight alkylphenoxy-substituted aliphatic carboxylic ester from an alkylphenol containing 50-200 carbon atoms in the alkyl group, said process being conducted without separating C50-200 alkylphenol from the resultant product, said process comprising reacting at

A process for making a high molecular weight alkylphenoxy-substituted aliphatic carboxylic ester from an alkylphenol containing 50-200 carbon atoms in the alkyl group, said process being conducted without separating C50-200 alkylphenol from the resultant product, said process comprising reacting at least one alkyl-substituted phenol in which the alkyl substituent contains from 50 to 200 carbon atoms with at least one halogen-substituted aliphatic carboxylic ester to obtain said alkylphenoxy-substituted aliphatic carboxylic ester in high yield.