3,4,6-三甲基三唑并[4,5-e]嘧啶-5,7-二酮 | 2278-16-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 三唑并嘧啶类
• 中文名称: 3,4,6-三甲基三唑并[4,5-e]嘧啶-5,7-二酮
• 英文名称: 3,4,6-trimethyl-5,7-dioxo-4,5,6,7-tetrahydro-1,2,3-triazolo<4,5-d>pyrimidine
• 英文别名: 3,4,6-trimethyl-3H-[1,2,3]triazolo[4,5-d]pyrimidine-5,7(4H,6H)-dione；1,3,9-trimethyl-8-azaxanthine；9-methyl-8-azatheophylline；3,4,6-trimethyl-3,4-dihydro-[1,2,3]triazolo[4,5-d]pyrimidine-5,7-dione；3-methyl-8-aza-theophylline；5,7-Dioxo-3,4,6-trimethyl-4,5,6,7-tetrahydro-3H-vic.-triazolo<4.5-d>-pyrimidin；1,3,9-Trimethyl-8-azaxanthin；3,4,6-trimethyltriazolo[4,5-d]pyrimidine-5,7-dione
• CAS: 2278-16-2
• 化学式: C₇H₉N₅O₂
• 分子量: 195.181
• InChiKey: ZHCFHGXBVBRMMM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.8
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  71.3
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 海关编码：
  2933990090

反应信息

• 作为反应物：
  描述：

  1-碘代丙烷 、 3,4,6-三甲基三唑并[4,5-e]嘧啶-5,7-二酮 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以61%的产率得到4,6-dimethyl-1-propyl-1H-[1,2,3]triazolo[4,5-d]pyrimidine-5,7(4H,6H)-dione
  参考文献：
  名称：

  1H-或3H-[1,2,3]三唑并[4,5-d]嘧啶-5,7(4H,6H)-二酮(8-Azaxanthines)的合成和区域选择性N-和O-烷基化及其转化将它们的 3-烷基衍生物转化为 1-烷基异构体

  摘要：

  在非质子溶剂中使用了几种烷基化剂，例如卤代烷和硫酸二甲酯 在各种条件下用于单取代和双取代的 1H-或 3H-[1,2,3]三唑并[4,5-d]的烷基化嘧啶-5,7(4H,6H)-二酮，通过适当的 5,6-二氨基尿嘧啶与亚硝酸的环化制备。在无水碳酸钾存在下，三唑环上的烷基化同时在 1 位和 2 位发生，优先在 2 位烷基化。用等价的烷基化试剂在嘧啶环上进行类似的烷基化仅在 4 位发生。3,6-二取代衍生物在室温下烷基化导致5-O-烷基化伴随4-N-烷基化，但在高温下仅发生4-N-烷基化。3,4的反应，

  DOI：

  10.1055/s-2006-950337
• 作为产物：
  描述：

  9-methyl-8-azaxanthine 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 3,4,6-三甲基三唑并[4,5-e]嘧啶-5,7-二酮
  参考文献：
  名称：

  Regioselective N- and O-Alkylation of 3H-[1,2,3]triazolo[4,5-d]pyrimidine-5,7(4H,6H)-diones (8-Azaxanthines) and Transformation of 3-Alkyl Derivatives into 1-Alkyl Isomers

  摘要：

  The alkylation on the pyrimidine ring of 3-methyl-3H-[1,2,3]triazolo[4,5-d]pyrimidine-5,7(4H,6H)-diones (1) with an equimolecular amount of alkylating agent in the presence of anhydrous potassium carbonate in aprotic solvents under heating took place only at the 4-position. The similar alkylation on the triazole ring of 6-methyl-1H-[1,2,3]triazolo[4,5-d]-pyrimidine5,7(4H,6H)-diones (4) with an equivalent alkylating reagent happened simultaneously at the 1- and 2-positions with the priority at the 2-position. On the other hand, the alkylation of 3,6-disubstituted derivatives (12a-d) at room temperature led to the 5-O-alkylation (14a-e) accompanied with the 4-N-alkylation (3a, 13a-d), but at high temperature only the 4-N-alkylation occurred. The 3,4,6-tri-substituted derivatives (3a, 13d) underwent transformation with excess alkylating agents at high temperature leading to the formation of 1,4,6-tri-substituted derivatives (7, 15) with elimination of the 3-substituent in the same manner as xanthine.

  DOI：

  10.3987/com-06-10807

文献信息

• Synthesis and Regioselective N- and O-Alkylation of 1<i>H</i>- or 3<i>H</i>-[1,2,3]Triazolo[4,5-<i>d</i>]pyrimidine-5,7(4<i>H</i>,6<i>H</i>)-diones (8-Azaxanthines) and Transformation of Their 3-Alkyl Derivatives into 1-Alkyl Isomers
  作者：Tomohisa Nagamatsu、Rafiqul Islam

  DOI：10.1055/s-2006-950337

  日期：——

  alkylating agents, for example alkyl halides and dimethyl sulfate, were employed in aprotic Solvents Under a variety of conditions for the alkylation of mono- and disubstituted 1H- or 3H-[1,2,3]triazolo[4,5-d]pyrimidine-5,7(4H,6H)-diones, which were prepared by cyclization of the appropriate 5,6-diaminouracils with nitrous acid. The alkylation on the triazole ring in the presence of anhydrous potassium carbonate

  在非质子溶剂中使用了几种烷基化剂，例如卤代烷和硫酸二甲酯 在各种条件下用于单取代和双取代的 1H-或 3H-[1,2,3]三唑并[4,5-d]的烷基化嘧啶-5,7(4H,6H)-二酮，通过适当的 5,6-二氨基尿嘧啶与亚硝酸的环化制备。在无水碳酸钾存在下，三唑环上的烷基化同时在 1 位和 2 位发生，优先在 2 位烷基化。用等价的烷基化试剂在嘧啶环上进行类似的烷基化仅在 4 位发生。3,6-二取代衍生物在室温下烷基化导致5-O-烷基化伴随4-N-烷基化，但在高温下仅发生4-N-烷基化。3,4的反应，
• 3-Alkyl-6-methyl-5,7-dioxo-4,5,6,7-tetrahydro-1,2,3-triazolo[4,5-d]pyrimidines and Their Alkylations
  作者：Alena Bozóová、Alfonz Rybár、Juraj Alföldi、Gabriela Bašnáková

  DOI：10.1135/cccc19921314

  日期：——

  Alkylation of 3-alkyl-6-methyl-5,7-dioxo-4,5,6,7-tetrahydro-1,2,3-triazolo[4,5-d]pyrimidines I with alkyl halides in dimethylformamide in the presence of potassium carbonate, or by analogous alkylation of sodium salts of compounds I afforded the respective 4-alkyl derivatives III but not 5-alkyloxy-3-alkyl-6-methyl-7-oxo-6,7-dihydro-1,2,3-triazolo[4,5-d]pyrimidines IV or isomeric 1,3-dialkyl-6-methyl-5,7-dioxo-4,5,6,7-tetrahydro-1,2,3-triazolo[4,5-d]pyrimidinium halides II.

  在二甲基甲酰胺中，将3-烷基-6-甲基-5,7-二氧代-4,5,6,7-四氢-1,2,3-三唑[4,5-d]嘧啶I与烷基卤化物进行烷基化，或通过类似的方法将化合物I的钠盐烷基化，得到相应的4-烷基衍生物III，但不得到5-烷氧基-3-烷基-6-甲基-7-氧代-6,7-二氢-1,2,3-三唑[4,5-d]嘧啶IV或异构体1,3-二烷基-6-甲基-5,7-二氧代-4,5,6,7-四氢-1,2,3-三唑[4,5-d]嘧啶盐II。
• Reaction of<i>N,N</i>-dimethylazidochloromethyleniminium chloride (azidophosgeniminium chloride) with 1,3-dimethyl-4-aminouracils. A new “one pot” synthesis of 3-aryl-(and 3-alkyl)-4,6-dimethyl-5,7-dioxo-1,2,3-triazolo[4,5-<i>d</i>]pyrimidines (8-azatheophyllines)<i>via</i>a diazo group transfer process
  作者：Bruno Kokel、Nadia Boussouira

  DOI：10.1002/jhet.5570240601

  日期：1987.11

  N,N-Dimethylazidochloromethyleniminium chloride (azidophosgeniminium chloride) (1) reacts by diazo group transfer with 1,3-dimethyl-4-aryl-(and alkyl)aminouracils 4 to give, under mild “one pot” reaction conditions, a very good yield of 3-aryl-(and 3-alkyl)-4,6-dimethyl-5,7-dioxo-1,2,3-triazolo[4,5-d]pyrimidines (8-azatheophyllines) 8. That reaction proceeds, very likely, through formation of non-isolated

  N，N-氯化二甲基叠氮基氯甲基亚硝酸铵（叠氮基光亚甲基氯化铵）（1）与重氮基转移反应与1,3-二甲基-4-芳基-（和烷基）氨基尿嘧啶4反应，在温和的“一锅法”反应条件下得到了非常好的的3-芳基-（和3-烷基）-4,6-二甲基-5,7-二氧-1,2,3-三唑并[4,5- d ]嘧啶（8-茶碱茶碱）8。该反应很可能通过形成非分离的4-亚氨基-5-重氮尿嘧啶6来进行。
• Muravich-Aleksandr, Kh. L.; Kolesova, M. B.; Pernikova, V. G., Journal of Organic Chemistry USSR (English Translation), 1983, vol. 19, # 3, p. 562 - 567
  作者：Muravich-Aleksandr, Kh. L.、Kolesova, M. B.、Pernikova, V. G.、Smirnova, N. V.

  DOI：——

  日期：——
• KOKEL, BRUNO;BOUSSOUIRA, NADIA, J. HETEROCYCL. CHEM., 24,(1987) N 6, 1493-1498
  作者：KOKEL, BRUNO、BOUSSOUIRA, NADIA

  DOI：——

  日期：——