Light‐ and Manganese‐Initiated Borylation of Aryl Diazonium Salts: Mechanistic Insight on the Ultrafast Time‐Scale Revealed by Time‐Resolved Spectroscopic Analysis
作者:James D. Firth、L. Anders Hammarback、Thomas J. Burden、Jonathan B. Eastwood、James R. Donald、Chris S. Horbaczewskyj、Matthew T. McRobie、Adam Tramaseur、Ian P. Clark、Michael Towrie、Alan Robinson、Jean‐Philippe Krieger、Jason M. Lynam、Ian J. S. Fairlamb
DOI:10.1002/chem.202004568
日期:2021.2.24
Manganese‐mediated borylation of aryl/heteroaryl diazonium salts emerges as a general and versatile synthetic methodology for the synthesis of the corresponding boronate esters. The reaction proved an ideal testing ground for delineating the Mn species responsible for the photochemical reaction processes, that is, involving either Mn radical or Mn cationic species, which is dependent on the presence
锰介导的芳基/杂芳基重氮盐的硼酸酯化反应是合成相应的硼酸酯的通用且通用的方法。该反应证明是描绘负责光化学反应过程的Mn物种的理想测试基础,也就是说,涉及Mn自由基或Mn阳离子物种,这取决于适当强氧化剂的存在。我们的发现对于大量使用含锰羰基物质作为引发剂和/或催化剂的方法非常重要,这些方法在合成应用中具有巨大潜力。