Tertiary amine oxide with rosinyl three-membered phenanthrene ring structure and preparation method of tertiary amine oxide

Abstract

The invention discloses a tertiary amine oxide with a rosinyl three-membered phenanthrene ring structure and a preparation method of the tertiary amine oxide. The preparation method comprises the following steps of: (1) dissolving, namely mixing tertiary amine, an alcoholic solution or water and catalysts, heating the mixture to 50-60 DEG C, stirring and dissolving the mixture to obtain an alcoholic solution or an aqueous solution of the tertiary amine; (2) oxidizing reaction, namely mixing the alcoholic solution of the tertiary amine and hydrogen peroxide in a mole ratio of the tertiary amine to the hydrogen peroxide 1:(1-1.5), reacting the mixture for 12-25 hours at 65-80 DEG C, then adding disulfate and excess hydrogen peroxide to the mixture for reacting for 0.5-1 hour; and (3) separating and drying, namely steaming reaction products in a spinning manner, and drying the products in vacuum to obtain the tertiary amine oxide with the rosinyl three-membered phenanthrene ring structure. The tertiary amine oxide disclosed by the invention is high in electrolyte resistance and good in defoaming capability, has a good effect in hard water, and has good wetting and emulsifying performance. The preparation method is simple and practicable and is high in yield.

Description

technical field [0001] The invention belongs to the field of preparation of surfactants, in particular to a tertiary amine oxide containing a rosin-based three-membered phenanthrene ring structure and a preparation method thereof. Background technique [0002] Amine oxide (OA for short) is an oxide in which oxygen is directly combined with nitrogen atoms in tertiary amine molecules, also known as tertiary amine oxide or tertiary amine oxide. The oxygen in the amine oxide molecule has more negative charges and can combine with hydrogen protons. It is a weak base, but the base is weaker than the parent tertiary amine. The weak basicity of amine oxide makes it non-ionic in neutral and alkaline solutions, and cationic in acidic media. It is a multifunctional amphoteric surfactant. This type of compound has good thickening, antistatic, soft, foam increasing, foam stabilizing and detergency properties; low irritation, can effectively reduce the irritation of anionic surfactants i...

AI Technical Summary

Problems solved by technology

Its shortcoming is: this patent is to prepare the corresponding improvement that contains mono-long-chain alkyl amine oxide surfactant and product for industrial application, the product does not contain chiral alkyl chain, and it is a free-flowing aqueous solution at room temperature , the yield is low, and the product is a foam-increasing surfactant. The treatment for industrial applications is relatively cumbersome, and there is no specific description of its properties

Its disadvantage is that the product is a tertiary amine oxide solid with at least 2 alkyl carbon atoms greater than or equal to 8 carbon atoms, and the selected alkyl chain has no chirality, so it is not suitable for chiral reagents , but also did not give a specific description of its nature

Its disadvantages are: this patent is for the preparation of a single long-chain alkyl amine oxide surfactant, the product does not contain a chiral alkyl chain, the product is a free-flowing aqueous solution at room temperature, the yield is low, and the product It is a suds-boosting surfactant, used in detergent compatibilities that require strong sudsing performance

Images