2-溴-5-甲氧基-7-甲基-1,4-萘醌 | 273200-84-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 中文名称: 2-溴-5-甲氧基-7-甲基-1,4-萘醌
• 英文名称: 2-bromo-5-methoxy-7-methyl-1,4-naphthoquinone
• 英文别名: 2-Bromo-5-methoxy-7-methylnaphthalene-1,4-dione
• CAS: 273200-84-3
• 化学式: C₁₂H₉BrO₃
• 分子量: 281.106
• InChiKey: QPZKCUKDZJGSPY-UHFFFAOYSA-N

物化性质

• 沸点：
  438.1±45.0 °C(Predicted)
• 密度：
  1.604±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  16
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-溴-5-甲氧基-7-甲基-1,4-萘醌 在 potassium phosphate 、 ammonium cerium (IV) nitrate 、 1,1'-双(二苯膦基)二茂铁二氯化钯(II)二氯甲烷复合物 作用下， 以 四氢呋喃 、 水 、 乙腈 为溶剂， 反应 7.42h， 生成 diospyrin dimethyl ether
  参考文献：
  名称：

  Total Synthesis of the Antitumor–Antitubercular 2,6′-Bijuglone Natural Product Diospyrin and Its 3,6′-Isomer

  摘要：

  The 2,6'-bijuglone natural product diospyrin and its unnatural 3,6'-isomer idospyrin have been synthesized in seven steps each from N,N-diethylsenecioamide in overall yields of 12% and 13%, respectively. The syntheses diverge from ramentaceone (7-methyljuglone) and include a key Suzuki-Miyaura cross-coupling. Diospyrin, idospyrin, and several synthetic precursors exhibit potent and selective cytotoxicity to the murine myeloma NS-1 cell line over neonatal foreskin cells.

  DOI：

  10.1021/acs.jnatprod.0c00800
• 作为产物：
  描述：

  1-甲氧基-7-甲基-1,4-萘醌 在 溴 、 三乙胺 作用下， 以 氯仿 为溶剂， 反应 2.83h， 以84%的产率得到2-溴-5-甲氧基-7-甲基-1,4-萘醌
  参考文献：
  名称：

  Total Synthesis of the Antitumor–Antitubercular 2,6′-Bijuglone Natural Product Diospyrin and Its 3,6′-Isomer

  摘要：

  The 2,6'-bijuglone natural product diospyrin and its unnatural 3,6'-isomer idospyrin have been synthesized in seven steps each from N,N-diethylsenecioamide in overall yields of 12% and 13%, respectively. The syntheses diverge from ramentaceone (7-methyljuglone) and include a key Suzuki-Miyaura cross-coupling. Diospyrin, idospyrin, and several synthetic precursors exhibit potent and selective cytotoxicity to the murine myeloma NS-1 cell line over neonatal foreskin cells.

  DOI：

  10.1021/acs.jnatprod.0c00800

文献信息

• Synthesis of Quinonoid Analogues of Diospyrin
  作者：Sunil Sagar、Ivan Green

  DOI：10.1055/s-0028-1087975

  日期：——

  Diospyrin and its analogues have been known for their antimycobacterial properties. Significant efforts have been made towards the synthesis of structural analogues of diospyrin with improved biological activities. We report here the synthesis of four novel analogues of diospyrin via a Suzuki cross coupling between bromonaphthoquinones and aryl- or naphthylboronic acids in the presence of tetrakis(triphenylphosphine)palladium(0) as catalyst, followed by selective demethylation of the intermediates.

  已知diospyrin及其类似物具有抗分枝杆菌的特性。为合成具有增强生物活性的diospyrin结构类似物，人们投入了大量努力。本文报告通过溴萘醌与芳基或萘基硼酸在四(三苯基膦)钯(0)催化剂作用下进行Suzuki交叉耦合反应，随后对中间体进行选择性脱甲基化，合成了四种新型的diospyrin类似物。
• Green, Ivan R.; Sagar, Sunil; Swigelaar, Wendell, ARKIVOC, 2011, vol. 2011, # 10, p. 192 - 212
  作者：Green, Ivan R.、Sagar, Sunil、Swigelaar, Wendell、Ameer, Farouk、Meyer, Mervin

  DOI：——

  日期：——
• Synthesis of Diospyrin, a Potential Agent Against Leishmaniasis and Related Parasitic Protozoan Diseases
  作者：Masao Yoshida、Kenji Mori

  DOI：10.1002/1099-0690(200004)2000:7<1313::aid-ejoc1313>3.0.co;2-i

  日期：2000.4

  The first synthesis of diospyrin [2,6'-bis(5-hydroxy-7-methyl-1,4-naphthoquinone), Ij was achieved by employing Suzuki coupling between 5 and 14 as the key reaction to connect the two 7-methyljuglone units.
• Total Synthesis of the Antitumor–Antitubercular 2,6′-Bijuglone Natural Product Diospyrin and Its 3,6′-Isomer
  作者：Glenn A. Pullella、Daniel Vuong、Ernest Lacey、Matthew J. Piggott

  DOI：10.1021/acs.jnatprod.0c00800

  日期：2020.12.24

  The 2,6'-bijuglone natural product diospyrin and its unnatural 3,6'-isomer idospyrin have been synthesized in seven steps each from N,N-diethylsenecioamide in overall yields of 12% and 13%, respectively. The syntheses diverge from ramentaceone (7-methyljuglone) and include a key Suzuki-Miyaura cross-coupling. Diospyrin, idospyrin, and several synthetic precursors exhibit potent and selective cytotoxicity to the murine myeloma NS-1 cell line over neonatal foreskin cells.