Direct Excitation of Aldehyde to Activate the C(
<i>sp</i>
<sup>
<i>2</i>
</sup>
)−H Bond by Cobaloxime Catalysis toward Fluorenones Synthesis with Hydrogen Evolution
作者:Jia‐Dong Guo、Ya‐Jing Chen、Chen‐Hong Wang、Qiao He、Xiu‐Long Yang、Tian‐Yu Ding、Ke Zhang、Rui‐Nan Ci、Bin Chen、Chen‐Ho Tung、Li‐Zhu Wu
DOI:10.1002/anie.202214944
日期:2023.2.6
highly reactive photoexcited triplet state of aromatic aldehyde intermediates is intercepted by the catalyst in the ground state, thus leading to the synthesis of a series of fluorenones, xanthones and thioxanthones in good to excellent yields without any external oxidants and with hydrogen as the byproduct.
已经成功开发了通过钴肟催化直接激发醛以激活其 C ( sp 2 )-H 键。在照射下,芳香醛中间体的高反应性光激发三重态被基态催化剂拦截,从而导致在没有任何外部氧化剂和氢作为副产品。