Michael addition of cyclic β-oxo ester and α-methyl cyano ester substrates with activated olefins by iron complexes of benzimidazole derived N-heterocyclic carbene ligands
Keywords: Iron complexes; Nâheterocyclic carbenes; Benzimidazole ligands; Michael addition; Asymmetric catalysis; l-proline; Cyclic β-oxo ester; α-Methyl cyano ester; Mass spectrometry;