Wittig and horner-wittig coupling reactions of 2-substituted cyclic ethers and their application to spiroketal synthesis
作者:Steven V Ley、Barry Lygo、Helen M. Organ、Anne Wonnacott
DOI:10.1016/s0040-4020(01)91403-6
日期:1985.1
Wittig and Horner-Wittig coupling reactions of tetrahydropyran or tetrahydrofuran 2-triphenylphosphonium salts or 2-diphenylphosphine oxides with aldehydes and lactols affords good yields of the corresponding enol ethers. In selected examples these enol ether products may be further converted to spiroketals some of which are natural pheromones derived from Dacus oleae and Paravespula vulgaris.
四氢吡喃或四氢呋喃2-三苯基phosph盐或2-二苯基膦氧化物与醛和乳糖醇的Wittig和Horner-Wittig偶联反应提供了良好的相应烯醇醚产率。在选定的实例中,这些烯醇醚产物可以进一步转化为螺环酮,其中一些是得自油茶和寻常型草的天然信息素。