Preparation of Acetals of α-Epoxyketones and Their Chemoselective Hydrolysis Into α-Epoxyketones by Acidic Moist Silica Gel
作者:Pascal Lescure、François Huet
DOI:10.1055/s-1987-27964
日期:——
Sulfur ylides react with monoacetals of α-dicarbonyl compounds to give the expected epoxyacetals in satisfactory to high yields. These lead to α-epoxyketones by chemoselective hydrolysis by acidic moist silica gel.
硫酰化物与δ±-二羰基化合物的单乙醛发生反应,生成预期的环氧乙醛,产率令人满意甚至很高。通过酸性潮湿硅胶的化学选择性水解作用,可得到δ-环氧酮。