SEARCH Articles Figures Tables Claisen rearrangement ester enolates Enol esters Enolates enol esters Enolates rearrangements Enols rearrangement Ester Claisen rearrangement Ester enolate Ester rearrangements Esters enolate rearrangement Esters enolates Esters enolization Subject Claisen rearrangement Subject enolates Subject ester Subject rearrangement