6533b872fe1ef96bd12d3093
RESEARCH PRODUCT
Synthesis and X-ray structure of metalated Rhodium(II) catalysts with a chiral phospholane
Mercedes SanaúPeter J. KruegerEduardo MorenoFrancisco EstevanPascual LahuertaJulia Pérez-prietoHelmut Wernersubject
Inorganic ChemistryCrystallographychemistryStereochemistryDiastereomerX-raychemistry.chemical_elementOrthorhombic crystal systemChirality (chemistry)CatalysisRhodiumdescription
The reaction of Rh2(O2CR)4 (R = CH3, CF3) with the chiral phosphane (2S,5S)-2,5-dimethyl-1-phenylphospholane (PC*H), results in the formation of two diastereoisomers of Rh2(O2CCR)2(PC*)2, with (P) and (M) configuration. These can easily be isolated by chromatographic methods to obtain enantiomerically pure RhII compounds. Preliminary catalytic studies have shown that they induce moderate asymmetry in the cyclization of 5-aryl-1-diazo-2-pentanones and 1-diazo-5-hexen-2-one. X-ray analysis of the (M) diastereoisomer with formula Rh2(O2CCCH3)2(PC*)2 is reported. The crystallographic parameters are as follows: space group P21212 (orthorhombic) with a = 12.1347(11) A, b = 14.5870(13) A, c = 9.8171(9) A.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-01-01 |