3-氨基吡嗪-2-羧酸甲酯的摩尔折射率为38.44,摩尔体积为116.0(m³/mol),等张比容(90.2 K)为326.2,表面张力(dyne/cm)是62.4,极化率(10⁻²⁴ cm³)是15.24。
应用3-氨基吡嗪-2-羧酸甲酯是一种重要的工业原料,在医药、农药和染料等行业中有广泛应用。由于吡嗪环具有生物活性,在合成药物方面具有不可替代的作用,因此在医药研究中是一个热点领域。此外,该化合物还因其特殊的化学性质和药用活性而作为许多医药和农药的中间体,应用前景非常广阔。它还可用于医药及医药中间体、染发助剂、聚合物稳定剂、感光材料的抗氧化剂和抗灰雾剂等。
制备方法将10克(72毫摩尔)3-氨基-2-吡嗪羧酸溶解于100毫升无水甲醇和10毫升浓硫酸中,在室温下反应20小时。然后,将反应混合物倒入100毫升冰水中,并用氢氧化铵使其呈碱性后,再用二氯甲烷(70毫升×3)萃取。合并后的有机提取物使用盐水洗涤,并通过无水硫酸镁干燥、过滤和蒸发。粗产物用水重结晶纯化,得到5克黄色固体3-氨基吡嗪-2-羧酸甲酯,收率为7.9克,约为72%。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-氨基吡嗪-2-羧酸 | 3-aminopyrazinoic acid | 5424-01-1 | C5H5N3O2 | 139.114 |
3-[(甲氧基)羰基]-2-吡嗪羧酸 | 2,3-pyrazinedicarboxylic acid, monomethyl ester | 73763-86-7 | C7H6N2O4 | 182.136 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 3-amino-6-methylpyrazine-2-carboxylate | 2032-84-0 | C7H9N3O2 | 167.167 |
3-氨基吡嗪-2-羧酸 | 3-aminopyrazinoic acid | 5424-01-1 | C5H5N3O2 | 139.114 |
—— | Octyl 3-aminopyrazine-2-carboxylate | 94923-83-8 | C13H21N3O2 | 251.32 |
3-氨基-5-氯吡嗪-2-羧酸甲酯 | 3-amino-5-chloro-pyrazine-2-carboxylic acid methyl ester | 28643-16-5 | C6H6ClN3O2 | 187.586 |
甲基 3-氨基-5-羟基吡嗪-2-羧酸 | 5-Hydroxy-3-amino-2-methoxycarbonyl-pyrazin | 1503-03-3 | C6H7N3O3 | 169.14 |
3-氨基-6-溴吡嗪-2-甲酸甲酯 | methyl 3-amino-6-bromopyrazine-2-carboxylate | 6966-01-4 | C6H6BrN3O2 | 232.037 |
—— | methyl 3-amino-6-fluoro-2-pyrazinecarboxylate | 356783-41-0 | C6H6FN3O2 | 171.131 |
3-氨基-6-碘吡嗪-2-羧酸甲酯 | methyl 3-amino-6-iodopyrazine-2-carboxylate | 1458-16-8 | C6H6IN3O2 | 279.037 |
3-氨基-6-氯吡嗪-2-甲酸甲酯 | 3-amino-6-chloropyrazine-2-carboxylic acid methyl ester | 1458-03-3 | C6H6ClN3O2 | 187.586 |
—— | 2-amino-3-(methoxycarbonyl)pyrazine1-oxide | 17149-35-8 | C6H7N3O3 | 169.14 |
—— | methyl 3-isothiocyanatopyrazine-2-carboxylate | 128890-09-5 | C7H5N3O2S | 195.202 |
甲基5-乙酰基-3-氨基-2-吡嗪羧酸酯 | methyl 5-acetyl-3-aminopyrazinecarboxylate | 135673-69-7 | C8H9N3O3 | 195.178 |
甲基3-{(E)-[(二甲基氨基)亚甲基]氨基}-2-吡嗪羧酸酯 | 3-(Dimethylamino-methyleneamino)-pyrazine-2-carboxylic acid methyl ester | 134540-17-3 | C9H12N4O2 | 208.22 |
3-氨基-5,6-二氯-2-吡嗪羧酸甲脂 | methyl 6-amino-2,3-dichloropyrazine-5-carboxylate | 1458-18-0 | C6H5Cl2N3O2 | 222.031 |
—— | methyl 3-amino-5-propionylpyrazinecarboxylate | 135700-33-3 | C9H11N3O3 | 209.205 |
—— | methyl 3-amino-6-cyclopropylpyrazine-2-carboxylate | 1134-83-4 | C9H11N3O2 | 193.205 |
3-氨基-6-溴吡嗪-2-甲酸 | 3-amino-6-bromo-pyrazine-2-carboxylic acid | 486424-37-7 | C5H4BrN3O2 | 218.01 |
—— | 3-amino-5-(2-fluoro-ethoxy)-pyrazine-2-carboxylic acid methyl ester | 1425842-23-4 | C8H10FN3O3 | 215.184 |
—— | methyl 2-[(4-fluorophenylmethylene)amino]pyrazine-3-carboxylate | —— | C13H10FN3O2 | 259.24 |
3-氨基-2-吡嗪甲醇 | (3-amino-pyrazin-2-yl)methanol | 32710-13-7 | C5H7N3O | 125.13 |
—— | 3-(pyridin-3-ylamino)-pyrazine-2-carboxylic acid methyl ester | 908833-89-6 | C11H10N4O2 | 230.226 |
3-氨基吡嗪-2-甲醛 | 3-aminopyrazine-2-carbaldehyde | 32710-14-8 | C5H5N3O | 123.114 |
—— | 3-(3-oxo-butyrylamino)-pyrazine-2-carboxylic acid methyl ester | 1173917-35-5 | C10H11N3O4 | 237.215 |
—— | methyl 3-(3-t-butylthioureido)-2-pyrazinecarboxylate | 128890-19-7 | C11H16N4O2S | 268.34 |
吡嗪-2,3-二羧酸 二甲酯 | pyrazine-2,3-dicarboxylic acid dimethyl ester | 6164-77-8 | C8H8N2O4 | 196.163 |
2-羟基-3-吡嗪羧酸甲酯 | methyl 3-hydroxypyrazine-2-carboxylate | 27825-20-3 | C6H6N2O3 | 154.125 |
3-氯-2-吡嗪甲酸甲酯 | methyl 3-chloropyrazine-2-carboxylate | 27825-21-4 | C6H5ClN2O2 | 172.571 |
—— | 3-acetylamino-5-oxo-4,5-dihydro-pyrazine-2-carboxylic acid methyl ester | 1425842-17-6 | C8H9N3O4 | 211.177 |
2-碘-3-羧酸甲酯吡嗪 | methyl 3-iodopyrazine-2-carboxylate | 173290-17-0 | C6H5IN2O2 | 264.022 |
甲基-3-溴吡嗪-2-羧酸甲酯 | 3-bromo-pyrazine-2-carboxylic acid methyl ester | 51171-02-9 | C6H5BrN2O2 | 217.022 |
—— | methyl 3-amino-5-benzoylpyrazinecarboxylate | 135673-74-4 | C13H11N3O3 | 257.249 |
—— | 3-amino-5-(2-fluoro-ethoxy)-pyrazine-2-carboxylic acid | 1425842-26-7 | C7H8FN3O3 | 201.157 |
—— | methyl 3-(3-anilinothioureido)-2-pyrazinecarboxylate | 128890-22-2 | C13H12N4O2S | 288.33 |