Supplementary Material Available: Representative experimental procedures for the major transformations shown and characterization data for all new substances (7 pages). Ordering information is given on any current masthead page. 2.7 (C6H6) 12
The palladium catalyzed alkylation of the pyrimidinone (III) with the vinyl epoxides (II) or (IV) proceeds with great regioselectivity to yield either the 1,2‐adduct (I) or the 1,4‐adduct (V).
Die Alkenyl‐Fe‐Komplexe (Ia) werden von Tetrafluoroborsäure unter intermediärerBildung der Alkyliden‐Komplexe (II) protoniert, deren Umsetzung mit den Alkenen (III) zu den Methylcyclopropan‐Derivaten (IV) führt.
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