Zinc meso-Tetraphenylporphyrin as Shift Reagent for NADH-Models
By the use of zinc meso-tetraphenylporphyrin as a shift reagent the conformations of two new NADH-models have been determined.Induced 1H-NMR shifts up to five ppm have been observed.The conformations determined in this study are consistent with theoretical calculations and NOE-measurements.It has been proven that zinc, which is a so-catalyst in the reduction of activated carbonyl compounds with NADH-models, coordinates to the oxygen of the amide groups in two of our model compounds.