Csp<sup>2</sup>–N Bond Formation via Ligand-Free Pd-Catalyzed Oxidative Coupling Reaction of <i>N</i>-Tosylhydrazones and Indole Derivatives
作者:Maxime Roche、Gilles Frison、Jean-Daniel Brion、Olivier Provot、Abdallah Hamze、Mouad Alami
DOI:10.1021/jo401217x
日期:2013.9.6
system was found to promote the Csp2–N bond-forming reaction utilizing N-tosylhydrazones and N-H azoles. This process shows functional group tolerance; di-, tri-, and tetrasubstituted N-vinylazoles were obtained in high yields. Under the optimized conditions, the reaction proceeds with high stereoselectivity depending on the nature of the coupling partners.
在一种新的合成N-乙烯基唑的方法中,发现无配体的钯催化体系可利用N-甲苯磺酰hydr和NH唑类促进Csp 2 -N键形成反应。此过程显示了功能组的容忍度;高产率地获得了二,三和四取代的N-乙烯基唑。在最佳条件下,取决于偶合体的性质,反应以高的立体选择性进行。