| 摘要 |
A novel technique for the preparation of 4-hydroxy-5-alkyl-3-oxo-2H-furans is disclosed wherein the reaction product of an alpha-alkyl diglycolic acid diester and an oxalic acid diester is cyclized, hydrolyzed and decarboxylated. Alternatively, the corresponding 2,5-dialkyl product can be prepared by an intermediate alkylation step. |
