Konieczny M, Radzicka A
Arch Immunol Ther Exp (Warsz). 1978;26(1-6):955-7.
It was found that allyl group of alkenes Ia-Ig is transformed into 3'-sulfo-2'-sulfatopropyl or beta-methyl-beta-sulton groups in reaction of addition under action of concentrated sulfuric acid in the presence of methyl cyanide. It was stated that this reaction is competitive to the Ritter reaction. Soluble in water calcium salts IV obtained from compounds Ia and Ib exhibited strong antiinflammatory activity.
结果发现,在乙腈存在下,浓硫酸作用下的加成反应中,烯烃Ia - Ig的烯丙基转化为3'-磺基-2'-硫酸丙酯基或β-甲基-β-磺内酯基。据指出,该反应与 Ritter反应具有竞争性。由化合物Ia和Ib得到的可溶于水的钙盐IV表现出很强的抗炎活性。