84257-12-5
5-(1-hydroxy-3-oxobutylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
→
~87%
58169-25-8
4-hydroxy-6-methyl-2-oxopyran-3-carboxylic acid
143456-22-8
2,2-dimethyl-5-(3-oxobutanoyl)-1,3-dioxane-4,6-dione