Diastereoselective Epoxidation of Allylic Diols Derived from Baylis-Hillman Adducts
作者:Fernando Coelho、Ricardo S. Porto、Mario L. Vasconcellos、Elizete Ventura
DOI:10.1055/s-2005-872091
日期:——
The results of a highly diastereoselective epoxidation of allylic diols derived from Baylis-Hillman adducts are reported. The formation of an intramolecular hydrogen bond seems to be responsible for the high anti diastereoselection obtained in this epoxidation reaction. The results are complementary to those obtained in the direct epoxidation of Baylis-Hillman adducts, in which an elevated syn diastereoselectivity was observed.
报告了对来自 Baylis-Hillman 加合物的烯丙基二醇进行高非对映选择性环氧化反应的结果。分子内氢键的形成似乎是该环氧化反应获得高非对映选择性的原因。这些结果与在 Baylis-Hillman 加合物的直接环氧化反应中获得的结果相辅相成,在后者中观察到了较高的合成非对映选择性。