Joint palladium/norbornene organometallic catalysis allows for straightforward access to dibenzo[c,e]azepines. These synthetically challenging polycyclic frameworks form in one pot via a three-component coupling of an aryl iodide, a bromobenzylamine, and an olefin. A key, atroposelective aryl–aryl coupling from chelated Pd(IV) intermediates dictates the outcome of the cascade. DFT modeling sheds light
钯/
降冰片烯有机
金属联合催化可以直接获得二苯并[ c,e ]氮杂。这些合成挑战性多环骨架通过芳基
碘化物,
溴苄胺和烯烃的三组分偶联在一个罐中形成。螯合的Pd(IV)中间体的关键,对位选择性芳基-芳基偶联决定了级联反应的结果。DFT建模揭示了复杂的机制,可以观察到完整的非对映选择性。