Michael-type addition of hydroxide to alkynylselenonium salt: practical use as a ketoselenonium ylide precursor
作者:Shin-ichi Watanabe、Shinsuke Asaka、Tadashi Kataoka
DOI:10.1016/j.tetlet.2004.08.036
日期:2004.9
A novel synthetic method of ketodiphenylselenonium ylide from alkynylselenonium salt is described. A reaction of alkynylselenonium salt, hydroxide ion, and aldehyde in the presence of silver triflate and triethylamine gave oxiranylketones just as a trans-isomer in moderate to good yields, whereas benzoyl aziridine derivatives were obtained from the reaction with sodium p-toluenesulfonamide instead
描述了一种从炔基硒鎓盐合成酮二苯基硒鎓叶立德的新方法。在三氟甲磺酸银和三乙胺的存在下,炔基硒鎓盐,氢氧根离子和醛的反应以中等至良好的收率得到了环氧乙烷基酮,就像反式异构体一样,而苯甲酰基氮丙啶衍生物是从与对甲苯磺酰胺钠而不是苯甲酰胺的反应中获得的。氢氧根离子