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Green–Davies–Mingos rules : ウィキペディア英語版 | Green–Davies–Mingos rules In organometallic chemistry, the Green–Davies–Mingos rules predict the regiochemistry for nucleophilic addition to 18-electron metal complexes containing multiple unsaturated ligands. In general, complexation enhances the susceptibility of unsaturated hydrocarbon toward nucleophilic attack. The rules were developed by Stephen G. Davies, Malcolm Green, and Michael Mingos in 1978 〔(S.G. Davies, M. L. H. Green, and D. M. P. Mingos, ''Tetrahedron'' 1978, ''34'', 3047 )〕 ==Rule 1== Nucleophilic attack is preferred on even-numbered polyenes (even hapticity).
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