中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-羟基苯二甲酸酐 | 3-hydroxyphthalic anhydride | 37418-88-5 | C8H4O4 | 164.117 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-甲氧基邻苯二甲酸二乙酯 | diethyl 3-methoxyphthalate | 38157-42-5 | C13H16O5 | 252.267 |
—— | Diethyl 3-(2-hydroxyethoxy)benzene-1,2-dicarboxylate | 1234323-61-5 | C14H18O6 | 282.293 |
3-羥酞酸 | 3-hydroxyphthalic acid | 601-97-8 | C8H6O5 | 182.133 |
—— | Diethyl 3-(3-phenylpropoxy)benzene-1,2-dicarboxylate | 1234321-74-4 | C21H24O5 | 356.419 |
3-(3-羟基丙氧基)邻苯二甲酸 | 3-(3-hydroxypropoxy)phthalic acid | 1005516-20-0 | C11H12O6 | 240.213 |
3-(2-羟基乙氧基)邻苯二甲酸 | 3-(2-hydroxyethoxy)phthalic acid | 1005516-19-7 | C10H10O6 | 226.186 |
—— | 3-butoxyphthalic acid | 77764-02-4 | C12H14O5 | 238.24 |
—— | 3-benzyloxyphthalic anhydride | 63382-37-6 | C15H10O4 | 254.242 |
—— | 3-benzyloxyphthalic acid | 92497-14-8 | C15H12O5 | 272.257 |
—— | 3-(4-Carboxybutoxy)phthalic acid | 1005516-18-6 | C13H14O7 | 282.25 |
(3-苯基丙氧基)邻苯二甲酸 | (3-phenylpropoxy)phthalic acid | 1005516-15-3 | C17H16O5 | 300.311 |
(3-环己基丙氧基)邻苯二甲酸 | (3-cyclohexylpropoxy)phthalic acid | 1005516-14-2 | C17H22O5 | 306.359 |
Direct formation of 4- or 4,6-alkyl and aryl substituted diethyl 3-hydroxyphthalates from the correspondingly substituted Diels–Alder adducts of 2- or 2,5-substituted furans and diethyl acetylenedicarboxylate is promoted by AlCl3 in CH2Cl2 at room temperature. The first adduct of 2,5-diphenylfuran to be isolated has been obtained from the same reaction at −20°. The aromatic compounds can be obtained alternatively by treating the adducts with BF3 or H2SO4: where the adducts can be prepared by conventional means this two-step procedure has resulted in greatly improved yields. Adducts of furan and furfuryl alcohol are similarly converted to substituted phenols. HCl effected conversion only in the case of adducts carrying a bridgehead aryl substituent; in all other cases HCl added to the substituted double bond. The mechanism of the adduct rearrangement is discussed.