✍ Scribed by Stephen A. Benyunes; Susan E. Gibson (née Thomas); Mark A. Peplow
No coin nor oath required. For personal study only.
The formation of 1:1 adducts between tricarbonyl(vinylketene)iron(0) complexes and alkynes, and their subsequent conversion into tricarbonyl(cyclohexadienone)iron(0) complexes occur with complete retention of planar chirality. @ 1997 Elsevier Science Ltd Defining and controlling the stereochemical outcome of chemical reactions is currently of interest to a wide range of researchers. To date attention has focused mainly on reactions of organic compounds, and this has led to a sophisticated level of understanding and control of such processes. In contrast, stereochemical studies of organometallic reactions, particularly those in which both the metal centre and its ligands play a significant role, are still relatively rare. l
Our interest in the chemistry of tricarbonyl(vinylketene)iron(0) complexes 1 has led us to probe
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## Abstract The ^13^C n.m.r. spectra of complexes between __o__‐chloranil and aromatic electron donors were studied. Complexation leads to a general diamagnetic shift of the ^13^C n.m.r. signals for the acceptor (__o__‐chloranil), but for signals from the ^13^C nuclei in the donors both diamagnetic