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|Title:||NMR assignment of absolute configuration of a P-chiral diphosphine and mechanics of its stereoselective formation||Authors:||Aw, B.-H.
|Issue Date:||Jun-1996||Citation:||Aw, B.-H., Selvaratnam, S., Leung, P.-H., Rees, N.H., McFarlane, W. (1996-06). NMR assignment of absolute configuration of a P-chiral diphosphine and mechanics of its stereoselective formation. Tetrahedron Asymmetry 7 (6) : 1753-1762. ScholarBank@NUS Repository. https://doi.org/10.1016/0957-4166(96)00210-8||Abstract:||Two-dimensional rotating-frame nuclear Overhauser enhancement (ROESY) NMR spectra are used to determine the absolute configuration of (+)-diphenyl- phosphine-2,3-dimethyl-7-phenyl-7-phosphabicyclo[2.2.1]hept-2-ene. This diphosphine ligand is obtained from the palladium complex-promoted Diels- Alder reaction between diphenylvinylphosphine and 1-phenyl-3,3- dimethylphosphole in the presence of (R)-dimethyl(1-(α-naphthyl)ethylamine as the chiral auxiliary. The origin of the stereoselectivity in this asymmetric reaction is also revealed by solution NMR studies.||Source Title:||Tetrahedron Asymmetry||URI:||http://scholarbank.nus.edu.sg/handle/10635/76641||ISSN:||09574166||DOI:||10.1016/0957-4166(96)00210-8|
|Appears in Collections:||Staff Publications|
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