A facile synthesis of α-substituted γ-hydroxybutenolides from 3-furfural was achieved using a Baylis−Hillman reaction followed by singlet oxygen oxidation. The regioselectivity of this conversion was controlled by using TBAF.
使用BAylis-Hillman反应,然后进行单线态氧氧化,可以轻松地从
3-糠醛合成α-取代的γ-羟基
丁烯内酯。通过使用TBAF控制该转化的区域选择性。