Stereoselective Synthesis, Molecular Geometry, and Oxidation of (5-Isopropyl-2-methylpyrrolidin-2-yl)phosphonates
摘要:
Intramolecular aminomercuration of (1-amino-1,5-dimethylhex-4-enyl)phosphonates was shown to be regio- and stereoselective and to lead to (5-isopropyl-2-methylpyrrolidin-2-yl)phosphonates. The stereoselectivity was shown to be controlled by the experimental conditions. The configurations of the chiral carbons for the diastereomers were determined by X-ray and NMR analysis. Oxidation of the pyrrolidin-2-ylphosphonates with m-CPBA led to diastereomeric nitroxides exhibiting different phosphorus splitting and different half-lives.
Stereoselective Synthesis, Molecular Geometry, and Oxidation of (5-Isopropyl-2-methylpyrrolidin-2-yl)phosphonates
摘要:
Intramolecular aminomercuration of (1-amino-1,5-dimethylhex-4-enyl)phosphonates was shown to be regio- and stereoselective and to lead to (5-isopropyl-2-methylpyrrolidin-2-yl)phosphonates. The stereoselectivity was shown to be controlled by the experimental conditions. The configurations of the chiral carbons for the diastereomers were determined by X-ray and NMR analysis. Oxidation of the pyrrolidin-2-ylphosphonates with m-CPBA led to diastereomeric nitroxides exhibiting different phosphorus splitting and different half-lives.