Normal-to-abnormal rearrangement and NHC activation in three-coordinate iron (II) carbene complexes
BM Day, T Pugh, D Hendriks, CF Guerra… - Journal of the …, 2013 - ACS Publications
Journal of the American Chemical Society, 2013•ACS Publications
The 'normal'three-coordinate iron–NHC complex [(IPr) Fe (N′′) 2](N ″= N (SiMe3) 2)
rearranges to its abnormal NHC analogue [(a IPr) Fe (N ″) 2](6) on heating, providing a rare
abnormal iron–a NHC complex, and the first such three-coordinate complex. The tert-butyl-
substituted complex [(I t Bu) Fe (N ″) 2](4) undergoes a thermal decomposition that has not
previously been observed in iron–NHC chemistry, resulting in the bis (imidazole) complex [(t
BuIm) 2Fe (N ″) 2](7). A mechanism that involves consecutive C–H and C–N activation is …
rearranges to its abnormal NHC analogue [(a IPr) Fe (N ″) 2](6) on heating, providing a rare
abnormal iron–a NHC complex, and the first such three-coordinate complex. The tert-butyl-
substituted complex [(I t Bu) Fe (N ″) 2](4) undergoes a thermal decomposition that has not
previously been observed in iron–NHC chemistry, resulting in the bis (imidazole) complex [(t
BuIm) 2Fe (N ″) 2](7). A mechanism that involves consecutive C–H and C–N activation is …
The ‘normal’ three-coordinate iron–NHC complex [(IPr)Fe(N′′)2] (N″ = N(SiMe3)2) rearranges to its abnormal NHC analogue [(aIPr)Fe(N″)2] (6) on heating, providing a rare abnormal iron–aNHC complex, and the first such three-coordinate complex. The tert-butyl-substituted complex [(ItBu)Fe(N″)2] (4) undergoes a thermal decomposition that has not previously been observed in iron–NHC chemistry, resulting in the bis(imidazole) complex [(tBuIm)2Fe(N″)2] (7). A mechanism that involves consecutive C–H and C–N activation is proposed to account for the formation of 7.
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