5-chloro-6-formyl-1,3,8-trimethyl-pyrido<2,3-d>pyrimidine-2,4,7(1H,3H,8H)-trione | 177082-55-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶并嘧啶类
• 英文名称: 5-chloro-6-formyl-1,3,8-trimethyl-pyrido<2,3-d>pyrimidine-2,4,7(1H,3H,8H)-trione
• 英文别名: 5-Chloro-1,3,8-trimethyl-2,4,7-trioxopyrido[2,3-d]pyrimidine-6-carbaldehyde
• CAS: 177082-55-2
• 化学式: C₁₁H₁₀ClN₃O₄
• 分子量: 283.671
• InChiKey: JJGYIJRQUIDKFK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.8
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  78
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5-chloro-6-formyl-1,3,8-trimethyl-pyrido<2,3-d>pyrimidine-2,4,7(1H,3H,8H)-trione 在 sodium azide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 以81%的产率得到5,6,8-trimethylisoxazolo[3',4':4,5]pyrido[2,3-d]pyrimidine-4,7,9(5H,6H,8H)-trione
  参考文献：
  名称：

  5- azidopyrido [2,3的环闭合反应d ] pyrimidinetriones到isoxazolo-和oxadiazolopyrido [2,3- d ] pyrimidinetriones †

  摘要：

  具有反应性邻位取代基（如甲酰基或硝基）的5-叠氮基吡啶并[2,3 - d ]嘧啶2和7的热分解生成异恶唑并[3'，4'：4,5]吡啶并[2,3- d ]嘧啶3或恶二唑-[3'，4'：4,5]吡啶[2,3- d ]嘧啶9.通过差示扫描量热法（DSC）研究了叠氮化物分解的反应条件。另外，研究了将N-氧化物9脱氧为恶二唑10和将叠氮化物7区域选择性还原为胺8。

  DOI：

  10.1002/jhet.5570450621
• 作为产物：
  描述：

  6-甲氨基-1,3-二甲基脲嘧啶 在 三氯氧磷 作用下， 以 二苯醚 为溶剂， 反应 4.0h， 生成 5-chloro-6-formyl-1,3,8-trimethyl-pyrido<2,3-d>pyrimidine-2,4,7(1H,3H,8H)-trione
  参考文献：
  名称：

  Ring closure reaction of 5-hydroxy-pyrido[2,3-d]pyrimidine-2,4,7-triones to benzo[b]pyrimido[4,5-h]1,6-naphthyridine-1,3,6-triones

  摘要：

  N-Substituted aminouracils (1) react with malonates by cyclocondensation to 5-hydroxy-pyrido [2,3-d] pyrimidine-2,4,7-triones (2), which give with triethylorthoformate and aniline 6-(phenylaminomethylene)-pyrido[2,3-d]pyrimidine-tetraone (3). Halogenation of 2a-d (with R(2) = Me) with phosphorylchloride leads to 5,7-dichloro-pyrido [2,3-d]pyrimidine-2,4-diones (4) by cleavage of the methyl group at N-8, whereas Vilsmeier reaction of 2 affords 5-chloro-6-formyl derivatives (6), which cyclize with arylamines to give benzo[b]pyrimido[4,5-h] 1,6-naphthyridines (9). Compounds 9 were obtained independently by amination of the tosylates 5 to the 5-arylamino compounds 8, and Vilsmeier formylation to yield 9.

  DOI：

  10.1002/prac.19963380129

文献信息

• Synthesis of 5-mono- and 5,7-diamino-pyrido[2,3-<i>d</i>]-pyrimidinediones with potential biological activity by regioselective amination
  作者：Dang Van Tinh、Wolfgang Stadlbauer

  DOI：10.1002/jhet.5570450329

  日期：2008.5

  triphenyl-phosphane via Staudinger reaction. Hydrolysis with aqueous acetic acid produced in one step 7-unsubstituted-amino-pyrido[2,3-d]pyrimidine-2,4-diones 12. In a similar amination reaction, 5-chloropyrido[2,3-d]pyrimidine-2,4,7-triones 13 were aminated and formylated to 5-alkyl/arylamino-6-formyl derivatives 14-16 in a combined one-step-reaction with bulky arylamines or alkylamines in the presence of dimethylformamide

  由相应的5,7-二氯制备5-烷基-/芳基氨基-和5,7-二烷基/芳基氨基-吡啶并[2,3- d ]嘧啶-2,4-二酮（4,5,7-9）。在区域选择性反应中与脂肪族和芳香族胺3和6一起合成-pyrido [2,3- d ] pyrimidine-2,4-diones 2。通过5-氨基-7-氯衍生物4的叠氮化而获得的7-单叠氮化物10通过Staudinger反应与三苯基膦反应而转化为亚氨基正膦。用一步法制得的乙酸水溶液水解7-未取代的氨基-吡啶并[2,3 - d ]嘧啶-2,4-二酮12。以类似的胺化反应中，5-氯吡啶并[2,3- d ]嘧啶-2,4,7-三酮13进行胺化和甲酰化，5-烷基/芳基氨基-6-甲酰基衍生物14 - 16在组合的单步-在二甲基甲酰胺的存在下与庞大的芳胺或烷基胺的反应。
• Ring closure reactions of 5-azidopyrido[2,3-<i>d</i>]pyrimidinetriones to isoxazolo- and oxadiazolopyrido[2,3-<i>d</i>]pyrimidinetriones
  作者：Dang Van Tinh、Wolfgang Stadlbauer

  DOI：10.1002/jhet.5570450621

  日期：2008.11

  Thermal decomposition of 5-azidopyrido[2,3-d]pyrimidines 2 and 7 having reactive ortho-substituents such as a formyl or a nitro group yielded isoxazolo[3′,4′:4,5]pyrido[2,3-d]pyrimidines 3 or oxadiazolo-[3′,4′:4,5]pyrido[2,3-d]pyrimidines 9. The reaction conditions of the azide decomposition were studied by differential scanning calorimetry (DSC). In addition, desoxygenation of N-oxides 9 to oxadiazoles

  具有反应性邻位取代基（如甲酰基或硝基）的5-叠氮基吡啶并[2,3 - d ]嘧啶2和7的热分解生成异恶唑并[3'，4'：4,5]吡啶并[2,3- d ]嘧啶3或恶二唑-[3'，4'：4,5]吡啶[2,3- d ]嘧啶9.通过差示扫描量热法（DSC）研究了叠氮化物分解的反应条件。另外，研究了将N-氧化物9脱氧为恶二唑10和将叠氮化物7区域选择性还原为胺8。
• Ring closure reaction of 5-hydroxy-pyrido[2,3-d]pyrimidine-2,4,7-triones to benzo[b]pyrimido[4,5-h]1,6-naphthyridine-1,3,6-triones
  作者：Ahmed F. A. Khattab、Dang Van Tinh、Wolfgang Stadlbauer

  DOI：10.1002/prac.19963380129

  日期：——

  N-Substituted aminouracils (1) react with malonates by cyclocondensation to 5-hydroxy-pyrido [2,3-d] pyrimidine-2,4,7-triones (2), which give with triethylorthoformate and aniline 6-(phenylaminomethylene)-pyrido[2,3-d]pyrimidine-tetraone (3). Halogenation of 2a-d (with R(2) = Me) with phosphorylchloride leads to 5,7-dichloro-pyrido [2,3-d]pyrimidine-2,4-diones (4) by cleavage of the methyl group at N-8, whereas Vilsmeier reaction of 2 affords 5-chloro-6-formyl derivatives (6), which cyclize with arylamines to give benzo[b]pyrimido[4,5-h] 1,6-naphthyridines (9). Compounds 9 were obtained independently by amination of the tosylates 5 to the 5-arylamino compounds 8, and Vilsmeier formylation to yield 9.