作者:Hajime Hasegawa、Hitoshi Saito、Kazuo Tsuchitani
DOI:10.1246/cl.1977.797
日期:1977.7.5
Methyl 4,5-epoxy-3-methoxycarbonyl-4-methyl-trans-2-pentenoate gave dimethyl 4-methyl-2,5-dihydrofuran-2,3-dicarboxylate on being heated with acetylenic compounds, while methyl 4,5-epoxy-3-methoxycarbonyl-4-methyl-cis-2-pentenoate gave methyl 3-methoxycarbonyl-4-oxo-2-pentenoate as a main product.
甲基 4,5-环氧-3-甲氧基羰基-4-甲基-反式-2-戊烯酸与乙炔化合物加热后生成 4-甲基-2,5-二氢呋喃-2,3-二甲酸二甲酯,而甲基 4,5-环氧-3-甲氧基羰基-4-甲基-顺式-2-戊烯酸则生成甲基 3-甲氧基羰基-4-氧代-2-戊烯酸为主要产物。