A new octahedral titanium binaphthyl-bridged Schiff base complex (1) was synthesized and characterized. Analysis by 1H and 13C-NMR spectroscopy and X-ray crystallography indicated that the C1-symmetric cis- isomer is preferentially formed as one of the two possible enantiomeric couples of diasteroisomers. The catalytic behaviour of the complex 1 toward epoxidation of allylic alcohols was investigated. Using only 0.5% mol of the complex 1 the epoxyalcohols are obtained in very high regio-, chemo- and diastereoselctive way by the MW exposure of the mixture in solvent free-conditions.
Titolo: | Synthesis, crystal structure and application in regio- and stereoselective epoxidation of allylic alcohols of a titanium binaphthyl-bridged Schiff base complex |
Autori: | |
Data di pubblicazione: | 2005 |
Rivista: | |
Abstract: | A new octahedral titanium binaphthyl-bridged Schiff base complex (1) was synthesized and characterized. Analysis by 1H and 13C-NMR spectroscopy and X-ray crystallography indicated that the C1-symmetric cis- isomer is preferentially formed as one of the two possible enantiomeric couples of diasteroisomers. The catalytic behaviour of the complex 1 toward epoxidation of allylic alcohols was investigated. Using only 0.5% mol of the complex 1 the epoxyalcohols are obtained in very high regio-, chemo- and diastereoselctive way by the MW exposure of the mixture in solvent free-conditions. |
Handle: | http://hdl.handle.net/11386/1061194 |
Appare nelle tipologie: | 1.1.2 Articolo su rivista con ISSN |
File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.