Deamination of 1-Aminoalkylphosphonic Acids: Reaction Intermediates and Selectivity
作者:Anna Brol、Tomasz K. Olszewski
DOI:10.3390/molecules27248849
日期:——
acids in the reaction with HNO2 (generated "in situ" from NaNO2) yields a mixture of substitution products (1-hydroxyalkylphosphonic acids), elimination products (vinylphosphonic acid derivatives), rearrangement and substitution products (2-hydroxylkylphosphonic acids) as well as H3PO4. The variety of formed reaction products suggests that 1-phosphonoalkylium ions may be intermediates in such deamination
Selective Epoxidation of Polar Substrates by Dimethyldioxirane
作者:P. de MacedoPuyau、J. J. Perie
DOI:10.1080/00397919808004837
日期:1998.7
Abstract epoxides of highly inactivated double bounds can be obtained using DMDO, after transformation of deactivating esters into tetrabutylammonium salts. Reactions are quantitative and no further purification is required.