Hypervalent Iodine Mediated C–C Double Bond Activation: A Cascade Access to α-Keto Diacetates from Readily Available Cinnamic Acids
作者:Yunfei Du、Kang Zhao、Le Liu、Daisy Zhang-Negrerie
DOI:10.1055/s-0034-1378718
日期:——
control experiments. The reaction of cinnamic acids with (diacetoxyiodo)benzene in 1,2-dichloroethane in the presence of sulfuric acid provides an easy and direct access to the α-keto diacetate framework. This hypervalent iodine mediated oxidative reaction involves a tandem sequence of aryl migration, insertion of an oxygen atom, decarboxylation and diacetoxylation. A reaction mechanism is proposed and
摘要 肉桂酸与(二乙酰氧基碘)苯在1,2-二氯乙烷中在硫酸存在下反应,可轻松直接地获得α-酮基二乙酸酯骨架。这种高价碘介导的氧化反应涉及芳基迁移,氧原子插入,脱羧和二乙酰氧基化的串联序列。根据控制实验提出并讨论了反应机理。 肉桂酸与(二乙酰氧基碘)苯在1,2-二氯乙烷中在硫酸存在下反应,可轻松直接地获得α-酮基二乙酸酯骨架。这种高价碘介导的氧化反应涉及芳基迁移,氧原子插入,脱羧和二乙酰氧基化的串联序列。根据控制实验提出并讨论了反应机理。