邻羧基苯甲醛具有醛和酸的特性,能与醇形成酯类化合物,并可还原银氨溶液(Ag(NH3)2NO3),还能与羟胺(H2NOH)生成肟。当加热至熔点时,可以转化为酐类衍生物(二苯酞醚)。
应用邻羧基苯甲醛可用作有机合成试剂,在制药领域作为解热镇痛药的重要中间体。
简介邻羧基苯甲醛是一种白色或类白色的结晶粉末,熔点范围为96~100℃。它在医药和有机合成中具有重要应用价值。
应用2-羧基苯甲醛是醛类的衍生物,可用作有机试剂。它是从2-羟甲基苯甲酸通过CBA脱氢酶转化得到的,同时也是氨苄青霉素邻苯二甲酸酯的一种代谢产物。
制备方法邻羧基苯甲醛通常由苯酚经过溴化和水解获得。将苯酚加热至140~145℃,缓慢通入溴,确保反应尾气几乎无溴蒸气排出,直到溴完全反应。然后加水进行水解,在沸水中反应0.5小时后冷却,析出邻羧基苯甲醛。该方法的收率为60%。
化学性质邻羧基苯甲醛呈叶状结晶,熔点为98~99℃(96~98℃)。
用途邻羧基苯甲醛用于医药中间体和有机合成领域。
生产方法将苯酚加热至140~145℃,缓慢通入溴,反应完成后,在120℃下通入二氧化碳并减压除去残留的溴化氢。随后加水进行水解,于沸腾水浴中反应0.5小时后冷却,析出邻羧基苯甲醛,收率为60%。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
对甲苯甲酸 | ortho-methylbenzoic acid | 118-90-1 | C8H8O2 | 136.15 |
2-(羟基甲基)苯甲酸 | 2-(hydroxymethyl)benzoic acid | 612-20-4 | C8H8O3 | 152.15 |
邻甲基苯甲酸甲酯 | 2-Methyl-benzoic acid methyl ester | 89-71-4 | C9H10O2 | 150.177 |
2-(氨基甲基)苯甲酸 | 2-(aminomethyl)-benzoic acid | 25672-97-3 | C8H9NO2 | 151.165 |
苯酐 | phthalic anhydride | 85-44-9 | C8H4O3 | 148.118 |
2-乙酰苯甲酸 | 2-acetyl-benzoic acid | 577-56-0 | C9H8O3 | 164.161 |
苯酞 | 2-benzofuran-1(3H)-one | 87-41-2 | C8H6O2 | 134.134 |
—— | Prop-2-enyl 2-formylbenzoate | 67472-20-2 | C11H10O3 | 190.199 |
—— | 2-dibromomethyl-benzoic acid | 62551-42-2 | C8H6Br2O2 | 293.942 |
邻苯二甲醛 | Phthalaldehyde | 643-79-8 | C8H6O2 | 134.134 |
—— | 2-phenylethyl 2-formylbenzoate | 298712-24-0 | C16H14O3 | 254.285 |
—— | 2,2'-(azinodimethylidyne)bis-benzoic acid | 55294-88-7 | C16H12N2O4 | 296.282 |
—— | (2E)-3,7-dimethylocta-2,6-dienyl 2-formylbenzoate | 298712-22-8 | C18H22O3 | 286.371 |
邻苯二甲醇 | phthalyl alcohol | 612-14-6 | C8H10O2 | 138.166 |
—— | (+/-)-3,7-dimethyloct-6-enyl 2-formylbenzoate | 298712-21-7 | C18H24O3 | 288.387 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
邻苯二甲酸 | benzene-1,2-dicarboxylic acid | 88-99-3 | C8H6O4 | 166.133 |
对甲苯甲酸 | ortho-methylbenzoic acid | 118-90-1 | C8H8O2 | 136.15 |
2-(羟基甲基)苯甲酸 | 2-(hydroxymethyl)benzoic acid | 612-20-4 | C8H8O3 | 152.15 |
2-醛基苯甲酸甲酯 | methyl o-formylbenzoate | 4122-56-9 | C9H8O3 | 164.161 |
2-(羟甲基)苯甲醛 | 2-(hydroxymethyl)benzaldehyde | 55479-94-2 | C8H8O2 | 136.15 |
2-醛基苯甲酸乙酯 | ethyl 2-formylbenzoate | 34046-43-0 | C10H10O3 | 178.188 |
2-氰基苯甲酸 | 2-cyanobenzoic acid | 3839-22-3 | C8H5NO2 | 147.133 |
2-乙烯基苯甲酸 | 2-vinylbenzoic acid | 30551-66-7 | C9H8O2 | 148.161 |
苯酐 | phthalic anhydride | 85-44-9 | C8H4O3 | 148.118 |
4-溴-2-醛基苯甲酸 | 4-bromo-2-formylbenzoic acid | 871502-87-3 | C8H5BrO3 | 229.03 |
苯酞 | 2-benzofuran-1(3H)-one | 87-41-2 | C8H6O2 | 134.134 |
邻氨甲酰苯甲酸 | phthalamic acid | 88-97-1 | C8H7NO3 | 165.148 |
—— | benzyl 2-formylbenzoate | 113674-51-4 | C15H12O3 | 240.258 |
—— | isopropyl 2-formylbenzoate | —— | C11H12O3 | 192.214 |
—— | tert-butyl 2-formylbenzoate | 907948-73-6 | C12H14O3 | 206.241 |
—— | 2-[(methylamino)methyl]benzoic acid | 527705-23-3 | C9H11NO2 | 165.192 |
2-丙基苯甲酸 | 2-propylbenzoic acid | 2438-03-1 | C10H12O2 | 164.204 |
—— | pentyl 2-formylbenzoate | 500535-85-3 | C13H16O3 | 220.268 |
—— | 2-((hydroxyimino)methyl)benzoic acid | 6383-59-1 | C8H7NO3 | 165.148 |
2-二氟甲基苯甲酸 | 2-(difluoromethyl)benzoic acid | 799814-32-7 | C8H6F2O2 | 172.131 |
—— | hexyl 2-formylbenzoate | 500535-81-9 | C14H18O3 | 234.295 |
—— | 2-[(1Z)-prop-1-en-1-yl]benzoic acid | 68692-74-0 | C10H10O2 | 162.188 |
—— | (E)-2-(prop-1-en-1-yl)benzoic acid | —— | C10H10O2 | 162.188 |
—— | 2-(prop-1-en-1-yl)benzoic acid | 90843-22-4 | C10H10O2 | 162.188 |
—— | 2-Formyl-benzoic acid hex-5-ynyl ester | 377774-63-5 | C14H14O3 | 230.263 |
苯甲酸 | benzoic acid | 65-85-0 | C7H6O2 | 122.123 |
2-乙烯基-苯甲酸甲酯 | methyl o-vinylbenzoate | 27326-44-9 | C10H10O2 | 162.188 |
—— | 2-butylbenzoic acid | 54887-23-9 | C11H14O2 | 178.231 |
—— | 2-benzylaminomethyl-benzoic acid | 331942-42-8 | C15H15NO2 | 241.29 |
—— | 2-styrylbenzoic acid | —— | C15H12O2 | 224.259 |
—— | (Z)-2-(2-phenylethenyl)benzoic acid | 66374-10-5 | C15H12O2 | 224.259 |
—— | (E)-2-styrylbenzoic acid | 5079-90-3 | C15H12O2 | 224.259 |
—— | 2-phenylethyl 2-formylbenzoate | 298712-24-0 | C16H14O3 | 254.285 |
—— | 2-(3-Phenylpropyl)benzoic acid | 13203-90-2 | C16H16O2 | 240.302 |
—— | 2-(2-methoxyethyl)benzoic acid | —— | C10H12O3 | 180.203 |
—— | 2-(but-1-en-1-yl)benzoic acid | 129780-53-6 | C11H12O2 | 176.215 |
—— | 2-(but-1'-enyl)benzoic acid | —— | C11H12O2 | 176.215 |
2-(二甲氧基甲基)苯甲酸甲酯 | methyl 2-(dimethoxymethyl)benzoate | 87656-31-3 | C11H14O4 | 210.23 |
—— | 2-pentylbenzoic acid | 60510-95-4 | C12H16O2 | 192.258 |
—— | 2-isopentylbenzoic acid | 105337-36-8 | C12H16O2 | 192.258 |
—— | 2-(2-methylprop-1-en-1-yl)benzoic acid | 68692-65-9 | C11H12O2 | 176.215 |
—— | 2,2'-pentanediyl-di-benzoic acid | 110048-77-6 | C19H20O4 | 312.365 |
—— | 2,2'-(azinodimethylidyne)bis-benzoic acid | 55294-88-7 | C16H12N2O4 | 296.282 |
邻甲基苄醇 | 2-methyl-benzyl alcohol | 89-95-2 | C8H10O | 122.167 |
—— | (E)-2-(pent-1-en-1-yl)benzoic acid | —— | C12H14O2 | 190.242 |
丁苯酞杂质 | 2-(pent-1-en-1-yl)benzoic acid | 16692-58-3 | C12H14O2 | 190.242 |
—— | (2E)-3,7-dimethylocta-2,6-dienyl 2-formylbenzoate | 298712-22-8 | C18H22O3 | 286.371 |
—— | 2-Formyl-benzoic acid (Z)-6-trimethylsilanyl-hex-3-en-5-ynyl ester | 377774-67-9 | C17H20O3Si | 300.43 |
邻苯二甲醇 | phthalyl alcohol | 612-14-6 | C8H10O2 | 138.166 |
—— | (+/-)-3,7-dimethyloct-6-enyl 2-formylbenzoate | 298712-21-7 | C18H24O3 | 288.387 |
—— | 2-[N-(methylamino-n-propyl)aminomethyl]benzoic acid | 439216-72-5 | C12H18N2O2 | 222.287 |
—— | 2-[N-(aminobutyl)aminomethyl]benzoic acid | 439216-73-6 | C12H18N2O2 | 222.287 |
The nickel-catalyzed reductive cleavage of esters in the absence of an external reductant, which involves the cleavage of an inert acyl C–O bond in