robust tool for bond formation. While ketyl radical reactivity of aldehydes by photoredox has been well-established, herein, we have now revealed a pathway for umpolung addition of aldehydes with or without external reductant. Hence, the reductive alkylations and challenging benzylations of nitrogen heteroarenes (i.e., Minisci reactions) are enabled by the bromide-promoted visible light-mediated photocatalysis
Brown, Trevor M.; Cooksey, Christopher J.; Crich, David, Journal of the Chemical Society. Perkin transactions I, 1993, # 17, p. 2131 - 2136
作者:Brown, Trevor M.、Cooksey, Christopher J.、Crich, David、Dronsfield, Alan T.、Ellis, Robert
DOI:——
日期:——
Aerobic cross-dehydrogenative couplings of N-heteroarenes with toluene derivatives at room temperature
作者:Qiao-Lin Wang、Huawen Huang、Zhaozhao Sun、Yufeng Chen、Guo-Jun Deng
DOI:10.1039/d1gc02547c
日期:——
A set of mild aerobic cross-dehydrogenativecouplings of N-heteroarenes with the benzylic C(sp3)–H bond has been achieved by using visible-light-induced photocatalysis. This approach was found to provide a sustainable alternative to Minisci benzylation reactions using readily accessible toluene derivatives as benzylating agents. The unique combination of photocatalysis, bromo radical mediation, and