Asymmetric Gemini surface activator, its production and use

[0067]The first step: get α-bromotetradecanoic acid ethyl ester, p-tert-butylphenol and potassium carbonate in a three-necked flask, the mol ratio of α-bromotetradecanoic acid ethyl ester: p-tert-butylphenol: potassium carbonate 1.1:1:1.5; dissolve the above mixture in a mixed solvent of N,N'-dimethylformamide:toluene with a volume ratio of 3:1, heat up to boiling under stirring, reflux to separate water, and wait for no water to come out Then stop heating, filter the reaction solution after cooling, transfer the filtrate to a separatory funnel, add water to separate the liquid, and dry the separated organic phase with anhydrous magnesium sulfate. After filtering, evaporate the organic solvent and carry out vacuum distillation to obtain α- Ethyl (p-tert-butyl)phenoxytetradecanoate.

[0068] The second step: take α-(p-tert-butyl)phenoxytetradecanoic acid ethyl ester in a three-necked flask filled with 1,2-dichloroethane, and add chlorosulfonic acid dropwise to the three-necked fla

[0070] The first step: get α-bromotetradecanoic acid ethyl ester, phenol and salt of wormwood in the reactor, the mol ratio of α-bromoteristate ethyl ester: phenol: potassium carbonate is 1.1: 1: 1.5; Dissolve the mixture in a mixed solvent of N,N'-dimethylformamide:benzene with a volume ratio of 3:1, heat up to boiling with stirring, reflux to separate water, stop heating after no water is separated, and filter the reaction solution after cooling , the filtrate was transferred to a separatory funnel, water was added for liquid separation, the separated organic phase was dried with anhydrous calcium chloride, the organic solvent was evaporated after filtration, and the vacuum distillation was carried out to obtain ethyl α-phenoxytetradecanoate .

[0071] The second step: take α-phenoxytetradecanoic acid ethyl ester in a three-necked flask filled with 1,2-dichloroethane, add chlorosulfonic acid dropwise to the three-necked flask under stirring, α-phenoxy The ethyl carboxylate:chl

[0073] The first step: get α-bromotetradecanoic acid ethyl ester, p-tert-butylphenol and potassium carbonate in a three-necked flask, the mol ratio of α-bromotetradecanoic acid ethyl ester: p-tert-butylphenol: potassium carbonate 1.1:1:1.5; dissolve the above mixture in a mixed solvent of N,N'-dimethylformamide:toluene with a volume ratio of 3:1, heat up to boiling under stirring, reflux to separate water, and wait for no water to come out Then stop heating, filter the reaction solution after cooling, transfer the filtrate to a separatory funnel, add water to separate the liquid, and dry the separated organic phase with anhydrous magnesium sulfate. After filtering, evaporate the organic solvent and carry out vacuum distillation to obtain α- Ethyl (p-tert-butyl)phenoxytetradecanoate.

[0074] The second step: take α-(p-tert-butyl)phenoxytetradecanoic acid ethyl ester and dissolve it in ethanol, add an aqueous solution of sodium hydroxide to it, and use α-(p-tert-butyl)phenoxytetra