Straightforward stereoselective synthesis of polyfunctionalised cyclohexenols using a multicomponent approach
摘要:
An intramolecular Ugi 5-centre-4-component reaction (U-5C-4CR) followed by a palladium-catalysed ring-opening has been employed to transform oxabicycloheptene-based beta-amino acids into two families of regioisomeric polyfunctionalised cyclohexenols. The whole process is completely stereoselective and enantiomerically pure products are obtained in high overall yields. (C) 2010 Elsevier Ltd. All rights reserved.
An intramolecular Ugi 5-centre-4-component reaction (U-5C-4CR) followed by a palladium-catalysed ring-opening has been employed to transform oxabicycloheptene-based beta-amino acids into two families of regioisomeric polyfunctionalised cyclohexenols. The whole process is completely stereoselective and enantiomerically pure products are obtained in high overall yields. (C) 2010 Elsevier Ltd. All rights reserved.