期刊
CHEMCATCHEM
卷 13, 期 21, 页码 4543-4548出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.202101072
关键词
chirality; helicene; homogeneous catalysis; phosphinite; Tsuji-Trost allylation
资金
- CNRS, Sorbonne Universite
- Agence Nationale de la Recherche [ANR-13-JS07-0013-HELCATS]
- IUF
- Agence Nationale de la Recherche (ANR) [ANR-13-JS07-0013] Funding Source: Agence Nationale de la Recherche (ANR)
This study reveals the significant role of a chiral bis-phosphorylated-helical ligand in the palladium-catalyzed Tsuji-Trost allylation. It was found that the (R) and (S) isomeric products can be selectively formed based on the amount of ligand introduced. Analysis through P-31 NMR spectroscopy, X-Ray diffraction, and DFT calculations shed light on the mechanism behind the role of organometallic species involved.
This article discloses a study on a chiral bis-phosphorylated-helical ligand in the palladium-catalyzed Tsuji-Trost allylation. The use of 2,15-bisphosphinite-[6]-helicenes revealed a remarkable ligand effect, in which the (R) and (S) isomeric products can be selectively formed as a direct function of the amount of ligand introduced. Investigation of the organometallic species involved through P-31 NMR spectroscopic analysis of a model complex and X-Ray diffraction analysis together with DFT calculations shed light on this phenomenon.
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