Abstract
The synthesis of a new optically active aminophosphine ligandi-Pramphos, containing a potentially stereogenic nitrogen atom, from (S)-N-isopropyl-N-methyl-α-methylbenzylamine is described; its complex with palladium(II) chloride was obtained. NMR spectroscopy revealed that the coordination of the aminophosphine with the metal resulted in stereospecific locking of the donor nitrogen atom in only one of two possible configurations.
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The possibility of locking of the configuration of the asymmetric nitrogen atom during cyclopalladation was shown for the first time in Ref. 19 for the prochiral ligand.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1385–1389, July, 1997.
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Dunina, V.V., Golovan, E.B., Gulyukina, N.S. et al. Configurationally stable asymmetric nitrogen atom in the palladium(II) aminophosphine complex. Russ Chem Bull 46, 1331–1334 (1997). https://doi.org/10.1007/BF02495936
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DOI: https://doi.org/10.1007/BF02495936