Rh(III)-Catalyzed Directed C−H Olefination Using an Oxidizing Directing Group: Mild, Efficient, and Versatile
摘要:
An efficient Rh(III)-catalyzed oxidative olefination by directed C-H bond activation of N-methoxybenzamides is reported. In this mild, practical, selective, and high-yielding process, the N-O bond acts as an internal oxidant. In addition, simply changing the substituent of the directing/oxidizing group results in the selective formation of valuable tetrahydroisoquinolinone products.
Rhodium-Catalyzed Oxidative Olefination of CH Bonds in Acetophenones and Benzamides
作者:Frederic W. Patureau、Tatiana Besset、Frank Glorius
DOI:10.1002/anie.201006222
日期:2011.2.1
A good neighborhood! The metal‐catalyzed oxidativeCH functionalization of electron‐rich arenes is well‐established, but analogous reactions of electron‐poor substrates are rare. A new application makes use of common electron‐withdrawing functional groups (COMe, CONH2, CONEt2) in the rhodium‐catalyzed oxidative Heck reaction to generate complex organic molecules. Cp*= η5‐C5Me5.