Regioselective Synthetic Approach to Higher Alkenes from Lower Alkenes with Sulfoxides in the Fe<sup>3+</sup>/H<sub>2</sub>O<sub>2</sub> System <i>via</i> Direct Alkylation or Arylation of the Csp<sup>2</sup>–H Bond on the C═C Bond of Alkenes
作者:Miao-Dong Su、Yu-Feng Liu、Zhi-Wen Nie、Tong-Lin Yang、Zhong-Zhong Cao、Hui Li、Wei-Ping Luo、Qiang Liu、Can-Cheng Guo
DOI:10.1021/acs.joc.2c00047
日期:2022.6.3
participate in this reaction. Moreover, not only dimethyl sulfoxide but also three other sulfoxides can be applied to this reaction, including diethyl, dibenzyl, and diphenyl sulfoxide. The mechanism studies showed that this reaction may experience a coupling process via radical addition–elimination and the Fe3+/H2O2 system made the sulfoxides offered one alkyl or aryl radical to the C═C bond of alkenes
已经开发了在Fe 3+ /H 2 O 2体系中使用亚砜作为烷基或芳基试剂从低级烯烃区域选择性合成高级烯烃的方法。该反应实现了烯烃的直接烷基化或芳基化。在该反应中,亚砜为烯烃的 C=C 键提供了一个 Csp 3或 Csp 2原子;一个新的 Csp 2 –Csp 3键或 Csp 2 –Csp 2债券形成。区域选择性合成了近 40 种产品,包括二、三和四取代产品。脂肪族和芳香族烯烃都可以参与该反应。此外,不仅二甲亚砜,而且其他三种亚砜也可用于该反应,包括二乙基亚砜、二苄基亚砜和二苯亚砜。机理研究表明,该反应可能经历自由基加成-消除偶联过程,Fe 3+ / H 2 O 2体系使亚砜为烯烃的C=C键提供了一个烷基或芳基自由基。