The instant disclosure relates to hydrocarbyl- (e.g., alkyl-) benzene sulfonate detergents and their salts, where the hydrocarbyl group includes moieties equivalent to 5 to 10 carbon branched polyene compounds. Such compounds and their salts are useful as lubricant additives. The detergents disclosed herein may solve at least one problem of providing anti-wear performance, frictional performance, oxidation performance, viscosity performance, and detergency.

The instant disclosure relates to hydrocarbyl- (e.g., alkyl-) benzene sulfonate detergents and their salts, where the hydrocarbyl group includes moieties equivalent to 5 to 10 carbon branched polyene compounds. Such compounds and their salts are useful as lubricant additives. The detergents disclosed herein may solve at least one problem of providing anti-wear performance, frictional performance, oxidation performance, viscosity performance, and detergency.

The application relates to a process for the synthesis of organic sulfonic acid salts of amino acid esters comprising the steps of (i) reacting at least one lactam with at least 3 carbon atoms in the lactam ring with at least one organic sulfonic acid in an aqueous solution, (ii) esterification of the organic sulfonic amino acid salt of step (i) with at least one alcohol with at least 8 carbon atoms comprising at least one hydroxyl group, (iii) optionally removal of water and/or removal of excess alcohol of step (ii). The application also relates to organic sulfonic acid salts of amino acid esters of the general formula (I). ##STR00001##

The application relates to a process for the synthesis of organic sulfonic acid salts of amino acid esters comprising the steps of (i) reacting at least one lactam with at least 3 carbon atoms in the lactam ring with at least one organic sulfonic acid in an aqueous solution, (ii) esterification of the organic sulfonic amino acid salt of step (i) with at least one alcohol with at least 8 carbon atoms comprising at least one hydroxyl group, (iii) optionally removal of water and/or removal of excess alcohol of step (ii). The application also relates to organic sulfonic acid salts of amino acid esters of the general formula (I). ##STR00001##

The application relates to a process for the synthesis of organic sulfonic acid salts of amino acid esters comprising the steps of (i) reacting at least one lactam with at least 3 carbon atoms in the lactam ring with at least one organic sulfonic acid in an aqueous solution, (ii) esterification of the organic sulfonic amino acid salt of step (i) with at least one alcohol with at least 8 carbon atoms comprising at least one hydroxyl group, (iii) optionally removal of water and/or removal of excess alcohol of step (ii). The application also relates to organic sulfonic acid salts of amino acid esters of the general formula (I). ##STR00001##

Compositions comprising a sulfonated reaction product or a salt thereof may be prepared from a cyclohexylbenzene compound that has been alkylated with an olefin of formula R.sup.1R.sup.2CCH.sub.2, wherein R.sup.1 is a C.sub.6-C.sub.24 hydrocarbyl group, and R.sup.2 is H or a C.sub.6-C.sub.24 hydrocarbyl group. Methods for sulfonating an alkylated cyclohexylbenzene compound prepared from a cyclohexylbenzene compound that has been alkylated with an olefin of formula R.sup.1R.sup.2CCH.sub.2, wherein R.sup.1 is a C.sub.6-C.sub.24 hydrocarbyl group, and R.sup.2 is H or a C.sub.6-C.sub.24 hydrocarbyl group may comprise contacting the alkylated cyclohexylbenzene compound with a sulfonating reagent; forming a sulfonated reaction product; and converting the sulfonated reaction product into a sulfonate salt.

The application relates to a process for the synthesis of organic sulfonic acid salts of amino acid esters comprising the steps of (i) reacting at least one lactam with at least 3 carbon atoms in the lactam ring with at least one organic sulfonic acid in an aqueous solution, (ii) esterification of the organic sulfonic amino acid salt of step (i) with at least one alcohol with at least 8 carbon atoms comprising at least one hydroxyl group, (iii) optionally removal of water and/or removal of excess alcohol of step (ii). The application also relates to organic sulfonic acid salts of amino acid esters of the general formula (I).

##STR00001##

The application relates to a process for the synthesis of organic sulfonic acid salts of amino acid esters comprising the steps of (i) reacting at least one lactam with at least 3 carbon atoms in the lactam ring with at least one organic sulfonic acid in an aqueous solution, (ii) esterification of the organic sulfonic amino acid salt of step (i) with at least one alcohol with at least 8 carbon atoms comprising at least one hydroxyl group, (iii) optionally removal of water and/or removal of excess alcohol of step (ii). The application also relates to organic sulfonic acid salts of amino acid esters of the general formula (I).

##STR00001##

The present invention relates to an esteramine salt according to the general formula (I):

##STR00001##

The substituents R.sup.1, R.sup.2 and R.sup.3 are defined below.

The present invention further relates to a process for preparing such an esteramine salt according to general formula (I), wherein a corresponding monocarboxylic acid or an ester thereof are reacted with an aminoalcohol and an at least equimolar amount of a sulfonic acid.

The present invention relates to an esteramine salt according to the general formula (I):

##STR00001##

The substituents R.sup.1, R.sup.2 and R.sup.3 are defined below.

The present invention further relates to a process for preparing such an esteramine salt according to general formula (I), wherein a corresponding monocarboxylic acid or an ester thereof are reacted with an aminoalcohol and an at least equimolar amount of a sulfonic acid.