The title compounds have been synthesized by the reaction of diaminooxosulfonium methylides with aldehydes as isomeric mixtures in good yields. These ylides reacted with aldehydes to give betaines, which formed unusual four-membered cyclic alkoxyoxosulfonium salts. Another methylide further attacked α-carbon of these salts to afford cyclopropyldiaminooxosulfonium salts.
标题化合物是通过二
氨基氧化锍甲酯与醛的异构混合物反应合成的,产量很高。这些酰化物与醛反应生成
甜菜碱,形成不寻常的四元环状烷氧基锍盐。另一种甲基化物进一步侵蚀了这些盐的α-碳,生成了环丙基二
氨基氧磺鎓盐。