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Asymmetric exchange of cyclopalladated ligands with a high level of asymmetric induction: a new route to optically active phosphapalladacycles

✍ Scribed by Valery V. Dunina; Elena D. Razmyslova; Ol'ga N. Gorunova; Michail V. Livantsov; Yuri K. Grishin

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 214 KB
Volume: 14
Category: Article
ISSN: 0957-4166
DOI: 10.1016/s0957-4166(03)00496-8

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✦ Synopsis

The first example of an asymmetric C H bond activation with chirality transfer (up to 91% ee) from an enantiopure CN-palladacycle is described. This asymmetric version of cyclopalladated ligand exchange was elaborated in an aprotic medium using prochiral phosphines as substrates and an enantiopure benzylaminate palladacycle bearing a primary amino group and a bulky tert-Bu substituent on the side chain as the palladation agent.

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