ketones or aldehydes undergo regiospecifically oxidative cleavage with pyridinium chlorochromate at the dioxene double bond to give, after saponification, α-hydroxy acids. Extension of this reaction to α,β-unsaturated ketones affords α-keto acids.
由
锂化的1,4-二恶烯和酮或醛制得的
烯丙醇在二恶烯双键处用
氯铬酸吡啶鎓进行区域特异性的氧化裂解,皂化后得到α-羟基酸。将该反应扩展至α,β-不饱和酮,得到α-
酮酸。