186581-53-3
重氮甲烷
+
60971-97-3
2,5-dihydro-5-hydroxy-4,5-dimethyl-2-oxo-3-furancarboxylic acid
→
~95%
60971-98-4
methyl 5-hydroxy-4,5-dimethyl-2-oxofuran-3-carboxylate