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The influence of peripheral groups present at the macrocycle (c‐, d‐, meso‐positions) of vitamin B12 derivatives on catalytic activity in the C−H activation of olefins is described. These catalysts are shown to halo the engraved bell. To justify the obtained yields, DFT calculations were performed, examining the relationship between the electron density on the cobalt ion and the yield. We discovered...
Vitamin B12 is a cofactor for many enzymes, but it also functions as a catalyst in C−C bond‐forming reactions. Herein, the impact of corrin structural modifications on their catalytic efficacy was examined. Derivatives with various substituents at c‐, d‐, and meso‐positions were synthesised by using traditional and new microwave methodologies, and then tested in the model reaction of 1,1‐diphenylethylene...
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