Visible-Light-Initiated Manganese Catalysis for C−H Alkylation of Heteroarenes: Applications and Mechanistic Studies
作者:Philippe Nuhant、Martins S. Oderinde、Julien Genovino、Antoine Juneau、Yohann Gagné、Christophe Allais、Gary M. Chinigo、Chulho Choi、Neal W. Sach、Louise Bernier、Yvette M. Fobian、Mark W. Bundesmann、Bhagyashree Khunte、Mathieu Frenette、Olugbeminiyi O. Fadeyi
DOI:10.1002/anie.201707958
日期:2017.11.27
A visible‐light‐driven Minisci protocol that employs an inexpensive earth‐abundant metal catalyst, decacarbonyldimanganese Mn2(CO)10, to generate alkyl radicals from alkyl iodides has been developed. This Minisci protocol is compatible with a wide array of sensitive functional groups, including oxetanes, sugar moieties, azetidines, tert‐butyl carbamates (Boc‐group), cyclobutanes, and spirocycles. The
已经开发了一种可见光驱动的Minisci协议,该协议采用了廉价的地球上富足的金属催化剂十羰基二锰Mn 2(CO)10从烷基碘生成烷基。该Minisci方案与各种敏感的官能团兼容,包括氧杂环丁烷,糖部分,氮杂环丁烷,氨基甲酸叔丁酯(Boc组),环丁烷和螺环。复杂的含氮药物的后期功能化证明了该方案的鲁棒性。光物理和DFT研究表明,光传播的链反应机制由传播。Mn(CO)5。限速步骤是通过碘从烷基碘中提取碘。Mn(CO)5。