作者:Zhang, Qian、Zhang, Jiabin、Qian, Hui、Ma, Shengming
DOI:10.1002/chem.202401815
日期:——
With Fe(NO3)3 ⋅ 9H2O and TEMPO as cocatalysts and oxygen as green oxidant, PMB ethers have been converted to carboxylic acids at room temperature with high efficiency and selectivity. Total synthesis of naturally occuring (R)-6-hydroxy-7,9-octadecadiynoic acid has been realized by applying this protocol as key step. A mechanism involving oxygen-stabilized benzylic cation has been proposed based on
以 Fe(NO3)3 ⋅ 9H2O 和 TEMPO 为助催化剂,以氧为绿色氧化剂,PMB 醚在室温下以高效率和选择性转化为羧酸。通过将该方案作为关键步骤,已经实现了天然存在的 (R)-6-羟基-7,9-十八烷二炔酸的完全合成。基于仔细研究,已经提出了一种涉及氧稳定苄基阳离子的机制。