Fatty reactions with sulfites

Other coco-based surfactants are sulfosuccinates formed by the reaction of coco fatty alcohol with maleic anhydride and further reaction with sodium sulfite or bisulfite. This product possesses good foaming properties, is compatible with soap, and is a good lime dispersant. It is used in toilet soap formulation, shampoos, hand cleaning pastes, and for scouring raw wool. Its ether variant, with 2-4 moles ethylene oxide, forms intense, finely structured foam and is used in combination with ether sulfate in baby shampoos and bath preparations. 

Partial sulfation of sucrose can be also achieved. Thus, reaction of sucrose with SOCl2 afforded a mixture of diastereoisomeric cyclic sulfites, which are readily oxidized to sulfates. Treatment of these latter compounds with fatty acids and potassium carbonate provided the ester with the sulfate group placed on 0-4. The sulfate function can be also introduced at other positions as demonstrated by reaction of 6-<9-acyl sucrose and l -O-acylsucrose with S03-pyridine (Scheme ll).150... 

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