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Nickel complexes from α-amino amides as efficient catalysts for the enantioselective Et2Zn addition to benzaldehyde

✍ Scribed by M.Isabel Burguete; Manuel Collado; Jorge Escorihuela; Francisco Galindo; Eduardo Garcı́a-Verdugo; Santiago V Luis; Marı́a J Vicent

Book ID: 104254291
Publisher: Elsevier Science
Year: 2003
Tongue: French
Weight: 234 KB
Volume: 44
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(03)01705-2

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✦ Synopsis

Ni 2+ complexes derived from simple a-amino amides catalyze very efficiently the addition of Et 2 Zn to benzaldehyde, giving (S)-1-phenylethanol as the major isomer in most cases (94% yield, 97% ee for R=Bn). The nature of the substituent on the amide nitrogen atom seems to play a key role in determining the asymmetric induction observed.

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