4,4'-di-tert-butyl-2,2'-dipyridyl; bis(η4-1,5-cyclooctadiene)-di-μ-methoxy-diiridium(I) in n-heptane 18 h; Reflux;

potassium acetate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II) dichloromethane adduct in N,N-dimethyl-formamide T=80°C; 2 h;

1.1: lithium diisopropyl amide; N-ethyl-N,N-diisopropylamine; n-butyllithium / tetrahydrofuran / 2 h / -78 - 0 °C 1.2: 0 °C 2.1: potassium carbonate / N,N-dimethyl-formamide / 2 h / 20 °C 3.1: 4,4'-di-tert-butyl-2,2'-dipyridyl / bis(η4-1,5-cyclooctadiene)-di-μ-methoxy-diiridium(I) / n-heptane / 18 h / Reflux View Scheme

1: potassium carbonate / N,N-dimethyl-formamide / 2 h / 20 °C 2: 4,4'-di-tert-butyl-2,2'-dipyridyl / bis(η4-1,5-cyclooctadiene)-di-μ-methoxy-diiridium(I) / n-heptane / 18 h / Reflux View Scheme