Making detergent base product for use as motor fuel additive, involves reacting a polyolefin-substituted phenol with prim. amine and aldehyde to give a bis-Mannich product and reacting this with a prim. or sec. amine

A method for the production of detergent base products involves (a) forming an intermediate bis-Mannich compound by reacting (i) hydroxy-aromatic compound(s) ring-substituted with an aliphatic hydrocarbyl group derived from a polyolefin with a number-average molecular weight (Mn) of 500-3000 with (ii) prim. amine(s) and (iii) aldehyde(s) and (b) reacting the intermediate with prim. and/or sec. amine(s). Independent claims are included for (1) detergent base products obtained by this method (2) a method for the production of a Mannich reaction product by reacting prim. and/or sec. amine(s) with a bis-Mannich compound of formula (III) (3) fuel compositions containing a base fuel and a detergent base product comprising a mixture of compounds of formula (VI) and (VII). in (III), R 1>H or 1-6C alkyl; in (III), R 3>aliphatic hydrocarbyl with an Mn of 500-3000 (R x>); in (III), R 4>an optionally substituted, optionally unsaturated linear, branched or cyclic alkylamino group; in (VI) and (VII), R 1>, R 3>H, 1-6C alkyl or R x> as above, with the proviso that at least one of R 1> and R 3> is R x>; in (VI) and (VII), R 4>alkyl, aryl, alkenyl, alkylamino, dialkylamino, alkylaminoalkyl or dialkylaminoalkyl; R 5>, R 6>H, alkyl, cycloalkyl, aryl, alkylaryl or aralkyl (at least one of these is not H) [Image] [Image]. Die vorliegende Anmeldung ist auf Detergens-Basisprodukte und Verfahren zum Bilden der Detergens-Basisprodukte gerichtet. Eine Ausführungsform des Ablaufs weist ein Bilden einer bis-Mannich-Zwischenverbindung auf mittels Reagierens (i) zumindest einer hydroxylsubstituierten aromatischen Ringverbindung mit einem aliphatischen Hydrocarbylsubstituenten am Ring, und zwar abgeleitet aus einem Polyolefin mit einer zahlengemittelten Molmasse von ca. 500 bis ca. 3000, (ii) zumindest eines primären Amins; und (iii) zumindest eine Aldehyds. Die sich daraus ergebende bis-Mannich-Zwischenverbindung wird dann mit zumindest einer zweiten Aminverbindung reagiert, die aus primären und sekundären Aminen ausgewählt wird, um das Detergens-Basisprodukt zu bilden.