Ruthenium dioxide in fluoro acid medium: I. A new agent in the biaryl oxidative coupling. Application to the synthesis of non phenolic bisbenzocyclooctadiene lignan lactones.
作者:Y Landais、J.-P Robin、A Lebrun
DOI:10.1016/s0040-4020(01)80904-2
日期:——
very efficient agent for the oxidative coupling of non phenolic lignans and their derivatives, and this method was applied to the total synthesis of (+/-)-neoisostegane 2a and (+/-)-steganolide A 2b. This procedure was also used to obtain the first stereospecific synthesis of a cis-bisbenzocyclooctadiene lactone, the (+/-)-deoxyschizandrin 17, of which, was afforded by a short reduction sequence.
氟酸介质中的二水合钌(IV)被发现是非酚类木脂素及其衍生物氧化偶联的非常有效的试剂,该方法被用于(+/-)-neosoostegane 2a和( +/-)-硬脂酸内酯A 2b。该方法还用于获得顺式-双苯并环辛二烯内酯的第一个立体有择合成,其(+/-)-脱氧五味子甲酸酯17是通过短还原序列提供的。