A Simple, Mild and General Oxidation of Alcohols to Aldehydes or Ketones by SO
<sub>2</sub>
F
<sub>2</sub>
/K
<sub>2</sub>
CO
<sub>3</sub>
Using DMSO as Solvent and Oxidant
作者:Gao‐Feng Zha、Wan‐Yin Fang、Jing Leng、Hua‐Li Qin
DOI:10.1002/adsc.201900104
日期:2019.5.14
A practical, general and mild oxidation of primary and secondary alcohols to carbonyl compounds proceeds in yields of up to 99% using SO2F2 as electrophile in DMSO as both the oxidant and the solvent at ambient temperature. No moisture‐ and oxygen‐free conditions are required. Stoichiometric amount of inexpensive K2CO3, which generates easy to separate by‐products, is used as the base. Thus, 5‐gram
在环境温度下,使用SO 2 F 2作为亲电子试剂在DMSO中作为氧化剂和溶剂,伯醇和仲醇进行实用,通用且温和的氧化成羰基化合物的收率可达99%。不需要无湿气和无氧条件。化学计量的廉价K 2 CO 3生成易于分离的副产物的油基用作基础。因此,通过简单的过滤作为后处理,以几乎定量的产量进行了5克规模的运行。还应注意使用通常促进竞争的Pummerer重排的极性溶剂(例如DMSO)。该协议与(杂)芳烃,烯烃和炔烃底物上的各种常见的N-,O-和S-官能团兼容(68个例子)。该方案被应用(99%的产率)用于重要的降胆固醇药物瑞舒伐他汀的正式合成。