A metal‐ and reagent‐free, electrochemical cross‐dehydrogenative couplingreaction of N‐aryl‐tetrahydroisoquinolines with phosphites and indole was reported, providing an environmentally benign and simple approach for the construction of C–P and C–C.
Light-Mediated Heterogeneous Cross Dehydrogenative Coupling Reactions: Metal Oxides as Efficient, Recyclable, Photoredox Catalysts in CC Bond-Forming Reactions
作者:Magnus Rueping、Jochen Zoller、David C. Fabry、Konstantin Poscharny、René M. Koenigs、Thomas E. Weirich、Joachim Mayer
DOI:10.1002/chem.201103242
日期:2012.3.19
Let there be light: A heterogeneous photocatalytic system based on easily recyclable TiO2 or ZnO allows cross dehydrogenative coupling reactions of tertiary amines. The newly developed protocols have successfully been applied to various CC and CP bond‐formingreactions to provide nitro amines as well as amino ketones, nitriles and phosphonates.
The efficient thiourea-catalyzed cross-dehydrogenative coupling of C(sp3)–H with diethylphosphite by using tert-butyl peroxide as a terminal oxidant was explored. This protocol further expands the application scope of H-bond donors and also provides facile access to biologically relevant α-amino phosphonic derivatives.
通过使用叔丁基过氧化物作为末端氧化剂,探索了硫脲催化 C(sp3)-H 与亚磷酸二乙酯的高效交叉脱氢偶联。该协议进一步扩大了 H 键供体的应用范围,并提供了对生物学相关的 α-氨基膦衍生物的轻松访问。