Ni/Ir-Catalyzed Photoredox Decarboxylative Coupling of S-Substituted Thiolactic Acids with Heteroaryl Bromides: Short Synthesis of Sulfoxaflor and Its SF<sub>5</sub>
Analog
作者:Oleksandr S. Kanishchev、William R. Dolbier
DOI:10.1002/chem.201701627
日期:2017.6.7
bonds between alkyl chains and aromatic systems, including electron‐deficient heteroaryls, which are known to be challenging coupling partners. In this article, we disclose the Ni/Ir‐catalyzed photoredox decarboxylative coupling of readily available S‐substituted thiolactic acids with electron‐deficient heteroaryl bromides, which resulted in the formation of simple but otherwise not easily accessible
Metallaphotoredox交叉偶联反应最近成为构建C(sp 2)-C(sp 3)烷基链与芳族系统(包括缺乏电子的杂芳基)之间的键,这些键已知是挑战性的偶合伙伴。在本文中,我们公开了易于获得的S取代硫代乳酸与缺电子的杂芳基溴的Ni / Ir催化的光氧化还原脱羧偶联,这导致形成简单但不易获得的带有烷基硫醚侧链的杂芳烃。为了证明该偶联反应的实际应用,我们已经证明了它在一步合成最近销售的杀虫剂Sulfoxaflor的关键中间体的合成中以及SF 5 -Sulfoxaflor的短合成中的有效性。