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|Title:||Cp*Rh complexes with pyridyloxazolines: synthesis, fluxionality and applications as asymmetric catalysts for Diels-Alder reactions.|
|Citation:||DALTON TRANS, 2004 (21), pp. 3629-3634|
|Abstract:||Half-sandwich complexes [RhCl(pymox)Cp*][SbF(6)](1-7)(pymox = pyridyloxazoline) have been synthesised as single diastereomers. Treatment of these with AgSbF(6) generates dications [Rh(OH(2))(pymox)Cp*](2+) which are fluxional at room temperature and which are enantioselective catalysts for the Diels-Alder reaction of methacrolein and cyclopentadiene. Treatment of the dication [Rh(OH(2))((i)Pr-pymox)Cp*](2+) with [X](-) gives [RhX((i)Pr-pymox)Cp*][SbF(6)](X = Br, I) as single diastereomers whilst reaction with 4-Mepy (4-methylpyridine) gives [Rh(4-Mepy)((i)Pr-pymox)Cp*][SbF(6)] as a mixture of diastereomers. Two complexes, [RhCl((i)Pr-pymox)Cp*][SbF(6)](3) and [RhCl(Bz-pymox)Cp*][SbF(6)](6) have been characterised by X-ray crystallography.|
|Appears in Collections:||Published Articles, Dept. of Chemistry|
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