Process for the preparation of surfactants

Details Process for the preparation of surfactants Process for the preparation of surfactants

C - Chemistry, Metallurgy

07

C

260/503.2

C07C 309/29 (2006.01) C07C 303/32 (2006.01) C07C 309/42 (2006.01)

Patent

CA 1339001

The invention provides a process for the preparation of compounds of general formula (I) which comprises: Image a) the reaction of a sulfate compound of general formula Image (II) with an aromatic alcohol of general formula C6H3(R1)2OH (III) or an aromatic sulfonate of general formula [C6H2(R1)2(OH)SO3]pM (IV), in which formulae R is a linear or branched alkyl group having on average from 8-22 carbon atoms; each R1 individually is H, a lower alkyl group, an alkoxy group, a thioalkoxy group or halogen, or when both R1's are ortho-positioned with respect to one another, both R1's together may form a group Image wherein each R1 individually has the same meaning as hereinbefore; M is an alkali metal, ammonium or an alkaline earth metal; p is 1 or 2; m+n 15, wherein m 0 and n > 0; in the presence of a base, b) sulfonating and neutralizing the reaction product as prepared under a) for the preparation of which a compound of general formula III has been used.

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