ETHERAMINES BASED ON 1,2-DIALCOHOLS Russian patent published in 2019 - IPC C07C213/04 C07C217/08 C07C217/28 C11D1/44 A61K8/45 

FIELD: chemistry.

SUBSTANCE: present invention relates to a novel product as an additive to a detergent obtained by a) by alkoxylation of a 1,2-dialcohol of formula (III) with alkylene oxides, where the molar ratio of 1,2-dialcohol of formula (III) to alkylene oxides is from 1:3 to 1:4, (III), where one of R₁ and R₂ represents a linear or branched alkyl group with 3–16 carbon atoms, and the other from R₁ and R₂ is hydrogen, and b) aminating the alkoxylated 1,2-dialcohol with ammonia, where the alkylene oxides are selected from the group consisting of propylene oxide, butylene oxide or a mixture thereof. Invention also relates to a process for the preparation of a novel mixture of etheramines, comprising the following steps a) alkoxylation of 1,2-dialcohol of formula (III) with alkylene oxides, where the molar ratio of the 1,2-dialcohol of formula (III) to alkylene oxides is in the range from 1:3 to 1:4, (III), where R₁ and R₂ has the above values, and b) amination of the alkoxylated 1,2-dialcohol with ammonia, wherein the alkylene oxides are selected from the group consisting of propylene oxide, butylene oxide or a mixture thereof. Mainly, propylene oxide is used as alkylene oxide, and 1,2-dialcohol of formula (III) is selected from the group consisting of 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-octanediol, 1,2-nonanediol, 1,2-decanediol and 1,2-dodecanediol, 1,2-tetradecanediol, 1,2-hexadecanediol and 1,2-octadecanediol. Amination is carried out in the presence of a copper, nickel or cobalt containing catalyst. Catalytically active substance of catalysts, before its reduction with hydrogen, contains oxygen compounds of aluminium, copper, nickel and cobalt, and in the range from 0.2 to 5.0 wt. % oxygen compounds of tin, calculated as SnO.

EFFECT: product obtained by this method, as well as the resulting mixture of ethers, can significantly improve the effectiveness of the detergent at low temperatures of up to 30 °C or even lower when removing fat stains, such as beef tallow, lard, bacon tallow, on cotton products.

6 cl, 7 tbl, 5 ex