Hydrophosphinylation of Unactivated Terminal Alkenes Catalyzed by Nickel Chloride
作者:Stéphanie Ortial、Henry C. Fisher、Jean-Luc Montchamp
DOI:10.1021/jo4008749
日期:2013.7.5
The room-temperature hydrophosphinylation of unactivated monosubstituted alkenes using phosphinates (ROP(O)H2) and catalytic NiCl2 in the presence of dppe is described. The method is competitive with prior palladium-catalyzed reactions and uses a much cheaper catalyst and simple conditions. The scope of the reaction is quite broad in terms of unactivated terminal olefins, proceeds at room temperature
metal‐free hydrophosphinylation of unactivatedalkenes with ethyl and butyl phosphinates is described. The reaction works with a low catalyst loading of 9‐mesityl‐10‐methylacridinium perchlorate (Fukuzumi photocatalyst, 0.5 mol %) in the presence of diphenyliodonium triflate as oxidant. The reaction proceeds smoothly and covers a broad scope of substrates. Detailed mechanistic investigations, including EPR