Cu<sup>II</sup>-Catalyzed cis-Selective Synthesis of Ketoepoxides from Phenacyl Bromides and Water
作者:Debasish Ghosh、Sabir A. Molla、Narendra Nath Ghosh、Saikat Khamarui、Dilip K. Maiti
DOI:10.1021/acs.joc.2c02835
日期:2023.7.21
oxidative C–C/O–C coupled cyclization strategy with high yield and cis-selectivity. Water is used as the source of oxygen and phenacyl bromide as the carbon in the valuable epoxides. The self-coupling method was extended to cross-coupling between phenacyl bromides with benzyl bromides. A high cis-diastereoselectivity was observed in all the synthesized ketoepoxides. Control experiments and density functional
使用 Cu II催化的氧化 C-C/O-C 偶联环化策略合成了多种 α,β-酮环氧化物,具有高产率和顺式选择性。水用作氧源,苯甲酰溴用作有价值的环氧化物中的碳。将自偶联方法扩展到苯甲酰溴与苄基溴之间的交叉偶联。在所有合成的酮环氧化物中观察到高顺式-非对映选择性。进行控制实验和密度泛函理论 (DFT) 研究来了解 Cu II -Cu I转变机制。