under mild reaction conditions. The modular nature of the ligands allows fine-tuning of the selectivities through judicious modifications of the substituents on the ligand backbone. X-ray structural analysis of the catalyst precursor suggested that the steric hindrance caused by the protruding remote substituents of the ligands into the vicinity of the metal center might be an important factor for
Old Yellow Enzyme-mediated reduction of β-cyano-α,β-unsaturated esters for the synthesis of chiral building blocks: stereochemical analysis of the reaction
作者:Elisabetta Brenna、Francesco G. Gatti、Alessia Manfredi、Daniela Monti、Fabio Parmeggiani
DOI:10.1039/c3cy20804d
日期:——
acid derivatives for foldamer chemistry applications. The stereochemical outcome of the biotransformations was carefully analysed by means of deuteriumlabelingexperiments. The results of this analysis were employed to rationalise the effects of substrate-control on the stereoselectivity of a certain class of ene-reductase-mediated reduction reactions. A simple model was developed to describe the structural