Diastereoselective intramolecular photochemical [2 + 2] cycloaddition reactions of tethered l-(+)-valinol derived tetrahydrophthalimides
作者:Kevin I. Booker-Milburn、Sirin Gulten、Andrew Sharpe
DOI:10.1039/a702386c
日期:——
Intramolecular photochemical [2 + 2] cycloaddition of allyl alcohol
linked to amino acid derived 3,4,5,6-tetrahydrophthalimides, either
via a carbonate or silicon tether, gives the corresponding
cyclobutanes in excellent yield with diastereoselectivities as high as
8:1.
丙烯醇与氨基酸衍生的3,4,5,6-四氢邻苯二甲酰亚胺通过碳酸酯或硅连接的分子内光化学[2 + 2]环加成,优异产率下生成相应的环丁烷,非对映选择性高达8:1。