SEARCH Articles Figures Tables 4-Oxopentanoate (Levulinate! esters 5- levulinate esters protect alcohols Alkyl levulinate esters Fuel additives, levulinic acid esters Levulinate Levulinate Esters (Lev) Levulinate esters Levulinate esters Levulinate esters from biomass wastes Levulinate esters prepared Levulinate esters to protect alcohols Levulinic acid esters Levulinic acid esters cleavage Levulinic acid ethyl ester