Preparation and surface active properties of alpha-acyloxysuccinic acid derivatives from malic acid and fatty acids of crude rice bran oil

Surface active compounds were prepared from malic acid by esterification with acyl chloride (ii)(a-d), of {[}palmitic, stearic, oleic, linoleic and mixed fatty acids of rice bran oil (RBO) (ii)(e)], in the presence of pyridine as catalyst, forming (iii)(a-e), which are converted to anionic disodium salt (iv)(a-e). The prepared alpha -acyl-oxysuccinic acid derivatives (iii)(a-e), was oxypropenoxylated with various moles of propylene oxide (n= 2, 4, 6 and 8) to give (v-ix)(a-d). These compounds were converted to nonionic surfactants with two terminal amide oxime groups (xv-xix)(a-d) as molecular aggregations and surface active agents in aqueous media. The structures were confirmed by micro analysis, IR and H-1 NMR spectra. The surface active properties of the prepared compounds revealed excellent results.