作者:Alistair P. Rutherford、Cameron S. Gibb、Richard C. Hartley
DOI:10.1016/s0040-4039(97)10635-9
日期:1998.2
a stereoselective route to β-hydroxycyclohexanones using the aldol reaction, the Takai alkylidenation, a novel anionic oxy-Cope rearrangement of acyclic enol ethers and an intramolecular aldol reaction. The stereoselectivity of the acid-induced, 6-(enolendo)-exo-trig, intramolecular, aldol reaction between an aldehyde and an enol ether has been investigated. The strong preference for an axial hydroxyl
我们已经开发出了使用醛醇缩合反应,Takai烷基化,无环烯醇醚的新型阴离子氧化-Cope重排和分子内醛醇缩合反应形成的β-羟基环己酮的立体选择路线。已经研究了酸诱导的醛和烯醇醚之间的6-(烯lendo)-exo-trig分子内醇醛反应的立体选择性。关于β-羟基环己酮产物中轴向羟基的强烈偏好是根据氧鎓离子中间体中的静电相互作用来解释的。