trans-.28PCy2Ph.292Ni.28o-tolyl.29Cl Nickel(II) precatalysts

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synthesis of trans-(pcy2ph)2ni(o-tolyl)cl



the precatalyst can reduced ni(0) via treatment tmsotf , base @ room temperature within minutes. authors propose upon chloride abstraction ni(ii) precatalyst, transmetalation between resulting cationic nickel complex , second ni(ii) precatalyst produces (pcy2ph)2ni(o-tolyl)2 , (pcy2ph)2ni(cl)(otf). reductive elimination (pcy2ph)2ni(o-tolyl)2 results in catalytically active ni(0) complex. paper documents first use of silyl triflate generate ni(0).



reduction of trans-(pcy2ph)2ni(o-tolyl)cl









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