The ionic CDA [PtCl3(C2H4)]-[(S,S)-(1-NpMeCH)2NH2]+ produces, on exchange of its coordinated ethylene by chiral trisubstituted allenes, diastereoisomeric mixtures originating distinct 195Pt NMR resonances for the complexed enantiomers, thus allowing the determination of the enantiomeric purity. A reproducible correlation between relative positions of platinum signals due to the complexed enantiomers and their absolute configuration has been found.
195Pt NMR Determination of the Enantiomeric Purity and Absolute Configuration of Trisubstituted Allenes by Using [PtCl3(C2H4)]-[(S,S)-(1-NpMeCH)2NH2]+ as CDA
UCCELLO BARRETTA, GLORIA;BALZANO, FEDERICA;CAPORUSSO, ANNA MARIA;SALVADORI, PIERO
2001-01-01
Abstract
The ionic CDA [PtCl3(C2H4)]-[(S,S)-(1-NpMeCH)2NH2]+ produces, on exchange of its coordinated ethylene by chiral trisubstituted allenes, diastereoisomeric mixtures originating distinct 195Pt NMR resonances for the complexed enantiomers, thus allowing the determination of the enantiomeric purity. A reproducible correlation between relative positions of platinum signals due to the complexed enantiomers and their absolute configuration has been found.File in questo prodotto:
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