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Simple methods have been developed for the preparation of a series of n-alkylferrocenes H(CH2)Fc (n = 3, 5-8, or 12) based on Friedel-Crafts acylation of ferrocenes followed by reduction of the corresponding ketones with Zn amalgam. The properties of H(CH2>nFc and the corresponding ferrocenium ions in micellar aqueous solutions and the behavior of watersoluble cations H(CH2)nFc+ in the absence of micelles were studied by cyclic voltammetry. In all cases, the formal redox potentials of ferrocenes (£ ‘) increase linearly as n increases up to 8. Whether micelles are present or not, the corresponding correlation equation has the following form: £”‘= a + pn, where beta= 29 mV in all cases. The synthesis of (±)-l-ethyI-2methylferrocene from racemic a-dimethylaminoethylferrocene is reported.
The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis.I hope my blog about 31886-57-4 is helpful to your research. name: (S)-N,N-Dimethyl-1-ferrocenylethylamine
Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis