Iron and Ruthenium Lewis Acid Catalyzed Asymmetric 1,3-Dipolar Cycloaddition Reactions between Nitrones and Enals

The single coordination-site transition metal Lewis acids [CpM(BIPHOP-F)][SbF6] (M = Fe, Ru) catalyze the [3+2] dipolar cycloaddition reaction between reactive nitrones and α,β-unsaturated aldehydes to give chiral isoxazolidines with ee values of 75 to >96%. The stereochemistry of the major enant...

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Veröffentlicht in:	Journal of the American Chemical Society 2002-05, Vol.124 (18), p.4968-4969
Hauptverfasser:	Viton, Florian, Bernardinelli, Gérald, Kündig, E. Peter
Format:	Artikel
Sprache:	eng
Schlagworte:	Acrolein - analogs & derivatives Acrolein - chemistry Catalysis Chemistry Exact sciences and technology Iron - chemistry Isoxazoles - chemical synthesis Models, Molecular Nitrogen Oxides - chemistry Organic chemistry Organometallic Compounds - chemistry Ruthenium - chemistry Stereoisomerism
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