A method for performing an iron-catalyzed allylic alkylation includes the preparation of a reaction mixture obtainable from (i) an allylic substrate with the structural element C═C—C—X, wherein X comprises a leaving group that represents a carbonate, (ii) an active Fe(-II) catalyst complex, (iii) at least one ligand, (iv) at least one solvent, and (v) a nucleophile or pronucleophile.
Reanimation: Catalytically inactive π‐allyl ironcomplexes are “reanimated” upon addition of N‐heterocyclic carbene ligands such as 1,3‐dimesitylimidazolin‐2‐ylidene (SIMES). A comparison of stoichiometric and catalytic allylic alkylation reactions shows the π‐allyl mechanism to be active in this catalytic system.
cyclisation of α-cyano-α-sulphonyl-γ,δ-epoxy carbanions proceeds with high yields and complete diastereoselectivity, to yield cyclopropanolactones, useful intermediates in the synthesis of cis-substituted cyclopropanecarboxylicacids.