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Inne
Resolution and determination of the absolute configuration of 3,3',4,4'-tetramethyl-1,1'-diphosphaferrocene-2-carboxaldehyde.
Autorzy
Rok wydania
2003
Czasopismo
Numer woluminu
14
Strony
3343-3346
DOI
10.1016/j.tetasy.2003.09.007
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Racemic 3,3′,4,4′-tetramethyl-1,1′-diphosphaferrocene-2-carboxaldehyde 1 was resolved via the formation of diastereomeric dioxolanes with (S)-(+)-1-phenyl-1,2-ethanediol. Four stereoisomers were separated by column chromatography. The absolute configuration of one of them (2′′R, 4′′S,1R) was established by X-ray diffraction. Acid hydrolysis of the dioxolanes afforded quantitatively (R)- and (S)-enantiomers of 1. Optical rotatory dispersion (ORD) spectra of both enantiomers are also reported.
Resolved via the formation of diastereomeric acetals with (S)-(+)-1-phenyl-1,2-ethanediol.
Adres publiczny
https://doi.org/10.1016/j.tetasy.2003.09.007
Strona internetowa wydawcy
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