嘧啶类化合物是一类分子结构中含有两个氮原子的六元杂环化合物,与哒嗪和吡嗪互为同分异构体。由于其分子中存在共轭双键,表现出独特的紫外光谱特性。这类化合物易溶于水,碱性较弱,并且不易发生亲电取代反应;仅在5-位可以进行溴化反应,而不具备硝化或磺化的能力,但容易经历亲核取代反应。
嘧啶及其衍生物广泛存在于自然界中,如磺胺嘧啶、巴比妥酸以及维生素B1等。在核酸分子内,有三种重要的嘧啶类碱基:尿嘧啶、胸腺嘧啶和胞嘧啶;其中,在DNA中主要包含胞嘧啶与胸腺嘧啶,而在RNA中则主要含有胞嘧啶及尿嘧啶,并且在某些特定的核酸中还可能发现少量的嘧啶修饰碱基。此外,许多药物分子如磺胺嘧啶、甲氧苄氨嘧啶和6-巯基嘌呤等都含有嘧啶环。
作为重要的医药原料,嘧啶及其衍生物被用于生产多种药物,例如维生素B1、磺胺嘧啶、磺胺异二甲嘧啶及磺胺间二甲氧嘧啶等。同时,它们也是农药的重要组成部分,包括二嗪农、嘧啶醇、灭瘟素、除草定、喃啶草、鼠立死、环菌灵、甲菌定、乙菌定、磺嘧菌灵、比嗪农、抗蚜威、乙基虫螨磷、虫螨磷、多氧霉素等。此外,作为染料的原料,具有三卤化嘧啶核结构的化合物因其与纤维之间的良好反应性,已成为一种备受关注的反应染料。
中文名称 | 英文名称 | CAS号 | 化学式 | 结构式图片 |
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5-氯嘧啶-2-羧酸 | 5-chloropyrimidine-2-carboxylic acid | 38275-61-5 | C5H3ClN2O2 |
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5-氯嘧啶-2-羧酸 | 5-Chlor-pyrimidin-2-carbonsaeure-amid | 38275-59-1 | C5H4ClN3O |
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5-氯嘧啶-2-甲醛 | 5-chloropyrimidine-2-carbaldehyde | 944900-20-3 | C5H3ClN2O |
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5-氯嘧啶 | 5-chloropyrimidine | 17180-94-8 | C4H3ClN2 |
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5-氯咪唑并[1,2-c]嘧啶 | 5-chloroimidazo[1,2-c]pyrimidine | 1208086-02-5 | C6H4ClN3 |
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5-氯咪唑[1,2-a]嘧啶 | 5-chloroimidazo[1,2-a]pyrimidine | 944896-82-6 | C6H4ClN3 |
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5-氯吡唑并[1,5-a]嘧啶-3-胺 | 5-chloropyrazolo[1,5-a]pyrimidin-3-amine | 1234616-50-2 | C6H5ClN4 |
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5-氯吡唑并[1,5-a]嘧啶 | 5-chloropyrazolo[1,5-a]pyrimidine | 29274-24-6 | C6H4ClN3 |
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5-氯2,6-二羟基-4-嘧啶羧酸甲酯 | 5-chloro-2,4-dihydroxy-6-methoxycarboxylpyrimidine | 91447-90-4 | C6H5ClN2O4 |
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5-氯-n-甲基-2-嘧啶胺 | 5-chloro-N-methylpyrimidin-2-amine | 45715-16-0 | C5H6ClN3 |
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5-氯-N-环丙基-2-嘧啶胺 | 5-Chloro-N-cyclopropylpyrimidin-2-amine | 1289385-19-8 | C7H8ClN3 |
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5-氯-N-乙基-2-嘧啶胺 | 5-chloro-N-ethylpyrimidin-2-amine | 1289388-01-7 | C6H8ClN3 |
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5-氯-N-(1-甲基乙基)-2-嘧啶胺 | 2-isopropylamino-5-chloro pyrimidine | 77476-96-1 | C7H10ClN3 |
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5-氯-7-甲基咪唑[1,2-a]嘧啶 | 5-chloro-7-methylimidazo[1,2-a]pyrimidine | 112266-62-3 | C7H6ClN3 |
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5-氯-6-羟基-1H-嘧啶-4-酮 | 5-chloro-4,6-dihydroxypyrimidine | 1193-56-2 | C4H3ClN2O2 |
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5-氯-6-甲基尿嘧啶 | 5-chloro-6-methyluracil | 16018-87-4 | C5H5ClN2O2 |
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5-氯-6-甲基嘧啶-4-胺 | 5-chloro-6-methylpyrimidin-4-amine | 13040-89-6 | C5H6ClN3 |
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5-氯-6-甲基嘧啶-4(1H)-酮 | 4-hydroxy-5-chloro-6-methylpyrimidine | 7752-72-9 | C5H5ClN2O |
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5-氯-6-乙基嘧啶-4-醇 | 5-chloro-6-ethylpyrimidin-4-ol | 130129-58-7 | C6H7ClN2O |
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5-氯-6-[(2-亚氨基-1-吡咯烷基)甲基]-2,4(1H,3H)-嘧啶二酮 | Tipiracil | 183204-74-2 | C9H11ClN4O2 |
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5-氯-6-(氯甲基)尿嘧啶 | 5-chloro-6-chloromethyluracil | 73742-45-7 | C5H4Cl2N2O2 |
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5-氯-6-(2,3-二氯苯氧基)-1,3-二氢苯并咪唑-2-硫酮 | 6-chloro-5-(2,3-dichlorophenoxy)-1H-benzimidazole-2-thiol | 68828-69-3 | C13H7Cl3N2OS |
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5-氯-6-(2,2,2-三氟乙氧基)烟酸 | 5-chloro-6-(2,2,2-trifluoroethoxy)nicotinic acid | 953729-63-0 | C8H5ClF3NO3 |
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5-氯-4-甲基嘧啶-2-胺 | 5-chloro-4-methylpyrimidin-2-amine | 40439-76-7 | C5H6ClN3 |
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5-氯-4-甲基嘧啶-2-甲腈 | 5-Chloro-4-methylpyrimidine-2-carbonitrile | 114969-79-8 | C6H4ClN3 |
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5-氯-3-碘吡唑并[1,5-a]嘧啶 | 5-chloro-3-iodopyrazolo[1,5-a]pyrimidine | 923595-58-8 | C6H3ClIN3 |
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5-氯-3-硝基吡唑[1,5-A]嘧啶 | 5-chloro-3-nitropyrazolo[1,5-a]pyrimidine | 1363380-51-1 | C6H3ClN4O2 |
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5-氯-2-苯基-嘧啶-4-羧酸 | 5-chloro-2-phenyl-pyrimidine-4-carboxylic acid | 1094346-84-5 | C11H7ClN2O2 |
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5-氯-2-苯基-嘧啶 | 5-chloro-2-phenylpyrimidine | 34771-50-1 | C10H7ClN2 |
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5-氯-2-羟基二苯甲酮 | (5-chloro-2-hydroxyphenyl)phenylmethanone | 85-19-8 | C13H9ClO2 |
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5-氯-2-碘嘧啶 | 5-chloro-2-iodopyrimidine | 874676-81-0 | C4H2ClIN2 |
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5-氯-2-甲基嘧啶-4-羧酸 | 5-chloro-2-methyl-pyrimidine-4-carboxylic acid | 74840-47-4 | C6H5ClN2O2 |
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5-氯-2-甲基嘧啶-4(3h)-酮 | 2-Methyl-4-hydroxy-5-chlor-pyrimidin | 26732-04-7 | C5H5ClN2O |
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5-氯-2-甲基嘧啶 | 5-chloro-2-methylpyrimidine | 54198-89-9 | C5H5ClN2 |
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5-氯-2-甲基吡唑并[1,5-a]嘧啶 | 5-chloro-2-methylpyrazolo[1,5-a]pyrimidine | 189116-36-7 | C7H6ClN3 |
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5-氯-2-嘧啶甲醇 | (5-chloropyrimidin-2-yl)methanol | 944902-98-1 | C5H5ClN2O |
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5-氯-2-乙氧基嘧啶 | 5-Chloro-2-ethoxypyrimidine | 1289386-43-1 | C6H7ClN2O |
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5-氯-2-(甲硫基)嘧啶-4-羧酸 | 5-chloro-2-(methylthio)pyrimidine-4-carboxylic acid | 61727-33-1 | C6H5ClN2O2S |
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5-氯-2-(甲硫基)嘧啶 | 5-chloro-2-(methylthio)pyrimidine | 38275-42-2 | C5H5ClN2S |
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5-氯-2-(甲硫基)-4(3H)-嘧啶酮 | 5-chloro-2-methylthio-4(1H)-pyrimidinone | 61044-94-8 | C5H5ClN2OS |
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5-氯-2-(氯甲基)嘧啶 | 5-chloro-2-(chloromethyl)pyrimidine | 944902-28-7 | C5H4Cl2N2 |
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5-氯-2-(2-吡咯烷基)嘧啶 | 5-Chloro-2-(pyrrolidin-2-YL)pyrimidine | 944901-10-4 | C8H10ClN3 |
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5-氯-2-(1-哌嗪基)-嘧啶 | 5-chloro-2-(piperazin-1-yl)pyrimidine | 59215-40-6 | C8H11ClN4 |
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5-氯-2,4-二氟嘧啶 | Di-fluoro-mono-chloro-pyrimidine | 25151-07-9 | C4HClF2N2 |
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5-氯-1H-吡唑并[4,3-d]嘧啶 | 5-chloro-1H-pyrazolo[4,3-d]pyrimidine | 633328-98-0 | C5H3ClN4 |
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5-氮杂金刚烷-2-酮 | 1-azaadamantane-4-one | 42949-24-6 | C9H13NO |
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5-氮杂胞嘧啶 | 5-azacytosine | 931-86-2 | C3H4N4O |
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5-氮杂尿嘧啶 | Allantoxaidin | 71-33-0 | C3H3N3O2 |
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5-氨基甲基-2-嘧啶羧酸 | 5-Aminomethylpyrimidine-2-carboxylic acid | 76196-72-0 | C6H7N3O2 |
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5-氨基烟酰胺 | 5-amino-nicotinamide | 60524-14-3 | C6H7N3O |
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