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- W2034962200 abstract "Abstract For two representative reactions employing enantiomerically pure ( S )‐1‐phenylethylamine and ( S )‐1‐cyclohexylethylamine it is shown that Ti‐catalyzed hydroamination reactions of alkynes do not generally take place without partial racemization at the chiral center adjacent to the nitrogen atom. However, identified from a selection of nine Ti catalysts, Cp* 2 TiMe 2 and at least two other catalysts can be used for racemization‐free hydroamination reactions of alkynes. Furthermore, the amount of racemization can be reduced significantly by the addition of pyridine to the reaction mixture. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)" @default.
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- W2034962200 date "2004-04-13" @default.
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- W2034962200 title "Enantiomerically Pure Amines as Substrates for the Ti-Catalyzed Hydroamination of Alkynes" @default.
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- W2034962200 doi "https://doi.org/10.1002/ejoc.200300522" @default.
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