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Substrate scope of iron‐catalyzed hydrogenations of alkenes and alkynes. Bonds in blue indicate the site of complete π‐bond hydrogenation. Standard conditions: 0.2 mmol alkene/alkyne, 0.5 m in toluene, 5 mol % Fe[N(SiMe3)2]2, 10 mol % Dibal‐H, 2 bar H2, 20 °C, 3 h. If not otherwise noted, yields were determined by quantitative GC‐FID vs. n‐pentadecane. Conversions are given in parentheses if <90 %. [a] 0.5 mol % Fe[N(SiMe3)2]2, 1 mol % Dibal‐H.
