methyl 2-[(E)-N-(dimethylamino)-C-(4-methoxy-2-methyl-4-oxobutyl)carbonimidoyl]-4-methylfuran-3-carboxylate 在
sodium hexamethyldisilazane 作用下,
以
乙醚 为溶剂,
反应 2.0h,
以62%的产率得到methyl (8E)-8-(dimethylhydrazinylidene)-3,6-dimethyl-4-oxo-6,7-dihydro-5H-cyclohepta[b]furan-5-carboxylate