stereospecific cyclisation of 1,3-diols with PhS migration to give THFs rather than oxetanes are reassessed in the light of evidence that these reactions are under thermodynamic control. Rearrangement of cyclic sulfites gives the nearest approach to kinetic control.
根据有证据表明这些反应在热力学控制下,重新评估了控制1,3
-二醇随PhS迁移而形成THF而不是氧杂
环丁烷的立体有择环化的因素。环状
亚硫酸盐的重排为动力学控制提供了最接近的方法。