Investigation of the scope of an enantioselective Co-mediated O→C rearrangement reaction
摘要:
A series of enantiomerically enriched functionalised pyrans bearing a dicobalt hexacarbonyl-alkyne moiety have been subjected to a Lewis acid mediated rearrangement to carbocyclic ketones. This process was found to provide cyclohexanones with good enantioselectivity, however, cyclobutanones were generated with complete loss of enantiocontrol. (c) 2007 Elsevier Ltd. All rights reserved.
Investigation of the scope of an enantioselective Co-mediated O→C rearrangement reaction
摘要:
A series of enantiomerically enriched functionalised pyrans bearing a dicobalt hexacarbonyl-alkyne moiety have been subjected to a Lewis acid mediated rearrangement to carbocyclic ketones. This process was found to provide cyclohexanones with good enantioselectivity, however, cyclobutanones were generated with complete loss of enantiocontrol. (c) 2007 Elsevier Ltd. All rights reserved.