中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 2-carboxy-3,5-dimethoxyphenylacetate | 83375-20-6 | C12H14O6 | 254.24 |
—— | methyl 2,4-dimethoxy-6-(methoxycarbonylmethyl)benzoate | 6512-26-1 | C13H16O6 | 268.266 |
—— | (2-ethoxycarbonyl-3,5-dimethoxy-phenyl)-acetic acid | 4670-24-0 | C13H16O6 | 268.266 |
—— | 2-ethoxycarbonylmethyl-4,6-dimethoxybenzoic acid ethyl ester | 6512-27-2 | C15H20O6 | 296.32 |
—— | methyl 2-hydroxy-4-methoxy-6-(methoxycarbonylmethyl)benzoate | 100118-53-4 | C12H14O6 | 254.24 |
—— | methyl 2-(2-formyl-3,5-dimethoxyphenyl)acetate | 602278-05-7 | C12H14O5 | 238.24 |
—— | dimethyl 3,5-dihydroxyhomophthalate | 6110-30-1 | C11H12O6 | 240.213 |
2,4-二甲氧基-6-甲基苯甲酸 | 2,4-dimethoxy-6-methylbenzoic acid | 3686-57-5 | C10H12O4 | 196.203 |
2,4-二甲氧基-6-甲基苯甲酸甲酯 | methyl 2,4-dimethoxy-6-methylbenzoate | 6110-37-8 | C11H14O4 | 210.23 |
—— | ethyl 2,4-dimethoxy-6-methylbenzoate | 57749-86-7 | C12H16O4 | 224.257 |
2,4-二羟基-6-甲基苯甲酸甲酯 | methyl orsellinate | 3187-58-4 | C9H10O4 | 182.176 |
5,7-二甲氧基茚酮 | 5,7-dimethoxyindan-1-one | 880-87-5 | C11H12O3 | 192.214 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 2-carboxy-3,5-dimethoxyphenylacetate | 83375-20-6 | C12H14O6 | 254.24 |
—— | methyl 2,4-dimethoxy-6-(methoxycarbonylmethyl)benzoate | 6512-26-1 | C13H16O6 | 268.266 |
—— | 2,4-dimethoxy-6-(2-oxopropyl)benzoic acid | 6512-31-8 | C12H14O5 | 238.24 |
—— | 6,8-dimethoxy-1H-2-benzopyran-1,3(4H)-dione | 82218-06-2 | C11H10O5 | 222.197 |
—— | 4,6-dimethoxy-2-(2-oxotridecyl)benzoic acid | 172208-04-7 | C22H34O5 | 378.509 |
—— | methyl 4,6-dimethoxy-2-(2-oxotridecyl)benzoate | 544706-19-6 | C23H36O5 | 392.536 |
6,8-二甲氧基-3-甲基异色满-1-酮 | 3,4-dihydro-6,8-dimethoxy-3-methyl-1H-2-benzopyran-1-one | 77844-97-4 | C12H14O4 | 222.241 |
—— | 3,4-dihydro-8-hydroxy-6-methoxy-3-methylisocoumarin | 6803-02-7 | C11H12O4 | 208.214 |
—— | (3R)-6,8-dimethoxy-3-undecyl-3,4-dihydroisocoumarin | 128232-83-7 | C22H34O4 | 362.51 |
6-羟基蜂蜜曲菌素 | 6-hydroxymellein | 19314-92-2 | C10H10O4 | 194.187 |
—— | (3R)-8-hydroxy-6-methoxy-3-undecyl-3,4-dihydroisocoumarin | 88510-01-4 | C21H32O4 | 348.483 |
—— | (3R)-3,4-dihydro-6,8-dihydroxy-3-undecyl-1H-[2]benzopyran-1-one | 128232-78-0 | C20H30O4 | 334.456 |
—— | 5-chloro-3,4-dihydro-8-hydroxy-6-methoxy-3-methylisocoumarin | 19314-93-3 | C11H11ClO4 | 242.659 |
—— | acetic acid 4-(6,8-dimethoxy-1,3-dioxo-isochroman-4-carbonyl)-2,6-dimethyl-phenyl ester | 924300-53-8 | C22H20O8 | 412.396 |
Oxy-substituted homophthalic anhydrides have been synthesized by cycloaddition of di- and tri-oxy butadienes to the allenic diester (1). By base-catalysed cycloaddition to appropriate benzoquinones they have afforded new syntheses of viocristin (19), isoviocristin (20) and analogous 1,4-anthraquinones. Related chemistry has led to the naphthalene (34) and the anhydride (35), intermediates in published syntheses of semivioxanthin and 6- methylpretetramid respectively.