Regioselective Hydrogenolysis of Donor–Acceptor Cyclopropanes with Zn-AcOH Reductive System
作者:Konstantin L. Ivanov、Elena V. Villemson、Gennadij V. Latyshev、Stanislav I. Bezzubov、Alexander G. Majouga、Mikhail Ya. Melnikov、Ekaterina M. Budynina
DOI:10.1021/acs.joc.7b01549
日期:2017.9.15
convenient low-cost method for regioselective ring-opening of donor–acceptor cyclopropanes with the Zn-AcOH reductive system was developed. The general character of the method was displayed via efficient reduction of a representative series of 2-(het)arylcyclopropane-1,1-diesters as well as donor–acceptor cyclopropanes with other types of electron-withdrawing activating groups. This method opens a rapid
开发了一种便捷的低成本方法,即使用Zn-AcOH还原系统进行供体-受体环丙烷的区域选择性开环。该方法的一般特征是通过有效还原具有代表性类型的2-(杂)芳基环丙烷-1,1-二酯以及具有其他类型的吸电子活化基团的供体-受体环丙烷来显示的。此方法可快速获得γ-取代的丙基-1,1-二酯,酮酸酯,氰基酯,氰基酰胺,二腈等,其中许多方法无法通过替代方法轻松获得。通过将合成的化合物转化为有价值的无环和环状化合物(包括与药理相关的咔唑,δ-内酰胺和羟吲哚衍生物),证明了其实用性。