Synthesis of chiral acetoxy lactones via the Baeyer–Villiger oxidation of cyclic aromatic acetoxy ketones
作者:Ayhan S. Demir、Asuman Aybey
DOI:10.1016/j.tet.2008.09.035
日期:2008.12
kinetic resolution of acetoxy ketones furnished both of the enantiomers of α-acetoxy ketones in good chemical and optical yields. The Baeyer–Villigeroxidation of α-acetoxy ketones with m-CPBA, CF3SO3H, and CH2Cl2, at rt gives the corresponding lactones without racemization. The acetoxy ketone moiety migrates selectively in order to form lactones. The mild hydrolysis of lactones affords phenolic α-hydroxycarboxylic
通过使用Mn(OAc)3进行茚满酮和四氢萘酮的α-乙酰氧基化反应,然后酶催化乙酰氧基酮的动力学拆分,以良好的化学和光学收率提供了α-乙酰氧基酮的两种对映体。在室温下,使用m -CPBA,CF 3 SO 3 H和CH 2 Cl 2进行α-乙酰氧基酮的Baeyer-Villiger氧化,得到相应的内酯,而没有消旋化。乙酰氧基酮部分选择性迁移以形成内酯。内酯的温和水解得到酚类α-羟基羧酸衍生物。