中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-(2-羟基-4-甲基苯基)-4-氧代丁酸甲酯 | Methyl 4-(2-Hydroxy-4-methylphenyl)-4-oxobutanoate | 59010-47-8 | C12H14O4 | 222.241 |
—— | 4-(2-methoxy-4-methyl-phenyl)-4-oxo-butyric acid | 91497-61-9 | C12H14O4 | 222.241 |
4-(5-氯-2-羟基-4-甲基苯基)-4-氧代丁酸 | 4-(5-Chloro-2-hydroxy-4-methylphenyl)-4-oxobutanoic Acid | 62903-21-3 | C11H11ClO4 | 242.659 |
—— | 4-(5-chloro-2-methoxy-4-methyl-phenyl)-4-oxo-butyric acid | 857229-77-7 | C12H13ClO4 | 256.686 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-(2-羟基-4-甲基苯基)-4-氧代丁酸甲酯 | Methyl 4-(2-Hydroxy-4-methylphenyl)-4-oxobutanoate | 59010-47-8 | C12H14O4 | 222.241 |
—— | 4-(2-methoxy-4-methyl-phenyl)-4-oxo-butyric acid | 91497-61-9 | C12H14O4 | 222.241 |
—— | 4-(2-hydroxy-4-methylphenyl)-butyric acid | 71945-73-8 | C11H14O3 | 194.23 |
—— | 4-<2-Methoxy-4-methyl-phenyl>-buttersaeure | 105402-00-4 | C12H16O3 | 208.257 |
—— | 4-(2-methoxy-4-methylphenyl)-2-methylbutyric acid | 605674-54-2 | C13H18O3 | 222.284 |
The structures previously assigned to two constituents of Diospyros hebecarpa A. Cunn. are confirmed by the synthesis of 5-hydroxy-7-methyl-l,4-naphthoquinone and its conversion to 1,4-diketo-5-hydroxy-7-methyl-1,2,3,4-tetrahydronaphthalene. By an independent route 5-methoxy-7-methyl-l,4-naphthoquinone has also been prepared, and has been converted to 1,4,5-trimethoxy-7-methylnaphthalene.