Activation of sp<sup>3</sup> C−H Bonds with Cobalt(I): Catalytic Synthesis of Enamines
作者:Andrew D. Bolig、Maurice Brookhart
DOI:10.1021/ja075694r
日期:2007.11.28
of the metal alkyl products of oxidative addition has not been fully explored. Toward these ends, we have developed catalytic dehydrogenation of alkyl amines with a Co(I) catalyst. Amine substrates are protected with vinyl silanes, followed by catalytic transfer hydrogenation, to yield a broad range of stable protected enamines and 1,2-diheteroatom-substituted alkenes, including several unprecedented
Development of more labile low electron count Co(<scp>i</scp>) sources: mild, catalytic functionalization of activated alkanes using a [(Cp*Co)<sub>2</sub>-μ-(η<sup>4</sup>:η<sup>4</sup>-arene)] complex
作者:Fernando Hung-Low、Jeremy P. Krogman、Jesse W. Tye、Christopher A. Bradley
DOI:10.1039/c1cc15458c
日期:——
Catalytic transfer dehydrogenation of silyl protected amines, requiring sp3 CâH bond activation, is mediated by a bridging arene complex of the type [(Cp*Co)2-μ-(η4:η4-arene)] under mild conditions. Mechanistic and qualitative rate studies establish the compound as a more reactive Co(I) source when compared to other known Cp*Co(I) complexes.