An efficient Rh(III)-catalyzed aerobic oxidative C–H alkenylation of arylamides with unactivated alkenes is described. The olefination reaction was compatible with various substituted arylamides including primary, secondary, and tertiary as well as functionalized unactivated olefins. Meanwhile, ortho mono/bis-alkylated arylamides were synthesized in the reaction of arylamides with norbornene. In the
Ruthenium(II)-Catalyzed Regioselective C–H Arylation of Cyclic and <i>N</i>,<i>N</i>-Dialkyl Benzamides with Boronic Acids by Weak Coordination
作者:Pradeep Nareddy、Frank Jordan、Stacey E. Brenner-Moyer、Michal Szostak
DOI:10.1021/acscatal.6b01360
日期:2016.7.1
arylation of cyclic and N,N-dialkyl benzamides with boronic acids enabled by versatileruthenium(II) complexes. This method features a general C–H arylation of ubiquitous aromatic tertiary benzamides by weak O-coordination. The transformation is characterized by its operational simplicity, the use of inexpensive, air-stable Ru(II) catalysts, scalability, and wide substrate scope. The reaction proceeds
One-Pot, Telescoped Alkenylation of Amides via Stable Tetrahedral Intermediates as Lithium Enolate Precursors
作者:Simone Ghinato、Carolina Meazzo、Federica De Nardi、Andrea Maranzana、Marco Blangetti、Cristina Prandi
DOI:10.1021/acs.orglett.3c01269
日期:2023.6.2
A mild and efficient telescoped procedure for the stereoselectivealkenylation of simple, non-activated amides using LiCH2SiMe3 and carbonyl compounds as surrogates of alkenyllithium reagents is reported. Our methodology relies on the formation of stable tetrahedral intermediates, which, upon collapse into highly reactive lithium enolates in a solvent-dependent fashion, allows for the assembly of α