Gemini surfactants, process of manufacture and use as multifunctional corrosion inhibitors

A process for producing bis-N-alkyl polyether, bis-N-alkenyl polyether, bis-N-cycloalkyl polyether, bis-N-aryl polyether bis-beta or alpha-amino acids or their salts having the formula XII

• where:
• R1 is independently a radical represented by —H or —CH3,
• R2 is an alkyl, alkenyl chain, cycloalkyl or aryl;
• R3 is a radical represented by —H, —CH3, —CH═CH—CH3, or —COOX;
• R4 is a radical represented by —H, —CH3, or —CH2—COOX;
• R5 is a radical represented by —H, an alkyl, alkenyl, cycloalkyl, aryl group, or a metal;
• R6 is a radical represented by an alkyl, alkenyl, cycloalkyl, or aryl group;
• n and m can have values from 1 to 250, and
• i can have values of 0 and 1:
• when i=1:
• R3 is a radical represented by —H, —CH3, —CH═CH—CH3, or —COOX, and
• when i is equal to 0:
• R3 is a radical represented by —COOX.
• In the radical —COOX used in R3 and R4, X is represented by:
• —H, an alkyl, alkenyl group, a cycloalkyl or aryl group, or a metal;
• wherein said process comprises the reaction scheme
• wherein the secondary amine of Formula VIII is reacted with a compound of Formula IX to obtain the compound of Formula IX to obtain the compound of Formula X, wherein said compound of Formula IX is selected from the group consisting of unsaturated alpha or beta acids and salts thereof, halogenated acids and salts thereof, and unsaturated esters, and
• reacting the resulting compound of Formula X with a compound of Formula XI, where X is selected from the group consisting of bromide, chloride and iodide, and R6 is as defined above to obtain the compound of Formula XII.