Synthesis of polysubstituted enamides via metal-catalyzed hydrogen atom transfer by merger of cobalt/photoredox catalysis was achieved. The judicious choice of Co(3-tert-butyl-5-CF3-salophen) and Co(3,5-di-tert-butylsalophen) enabled access to polysubstituted enamides. The method tolerated haloarenes, heteroarenes, free hydroxy groups, non-protected indoles, and drug-like molecules. Furthermore, this
The Development of Domino Reactions Incorporating the Heck Reaction: The Formation of N-Heterocycles
作者:James E. Rixson、Thomas Chaloner、Charles H. Heath、Lutz F. Tietze、Scott G. Stewart
DOI:10.1002/ejoc.201101305
日期:2012.1
methodological development of a series of domino or cascade reactions affording a series of N-heterocycles is described. The rapid formation of these ring systems is in each case associated with the incorporation of a Heck reaction at either an early or a late stage of the domino process. A range of catalytic conditions and substrate modifications for optimisation of domino Tsuji–Trost/Heck, Buchwald–Hartwig/Heck