(2-Brom-4-methylphenyl)-benzoat | 65849-33-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 缩酚酸和缩酚酸环醚类
• 英文名称: (2-Brom-4-methylphenyl)-benzoat
• 英文别名: 2-bromo-4-methyphenyl benzoate；4-benzoyloxy-3-bromotoluene；benzoic acid-(2-bromo-4-methyl-phenyl ester)；Benzoesaeure-(2-brom-4-methyl-phenylester)；(2-Brom-4-methyl-phenyl)-benzoat；3-Brom-4-benzoyloxy-toluol；(2-Bromo-4-methylphenyl) benzoate
• CAS: 65849-33-4
• 化学式: C₁₄H₁₁BrO₂
• 分子量: 291.144
• InChiKey: NGYGCHCKCKODLV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (2-Brom-4-methylphenyl)-benzoat 在 N-溴代丁二酰亚胺(NBS) 、 sodium hydride 、 过氧化苯甲酰 作用下， 以 四氯化碳 、 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 生成 benzoic acid 2-bromo-4-{[(4-cyanophenyl)[1,2,4]triazol-4-ylamino]methyl}phenyl ester
  参考文献：
  名称：

  Dual Aromatase−Steroid Sulfatase Inhibitors

  摘要：

  By introducting the steroid sulfatase inhibitory pharmacophore into aromatase inhibitor 1 (YM511), two series of single agent dual aromatase-sulfatase inhibitors (DASIs) were generated. The best DASIs in vitro (JEG-3 cells) are 5, (IC50(aromatase) = 0.82 nM; IC50(sulfatase) = 39 nM), and 14, (IC50(aromatase) = 0.77 nM; IC50(sulfatase) = 590 nM). X-ray crystallography of 5, and docking studies of selected compounds into an aromatase homology model and the steroid sulfatase crystal structure are presented. Both 5 and 14 inhibit aromatase and sulfatase in PMSG pretreated adult female Wistar rats potently 3 h after a single oral 10 mg/kg dose. Almost complete dual inhibition is observed for 5 but the levels were reduced to 85% (aromatase) and 72% (sulfatase) after 24 h. DASI 5 did not inhibit aldosterone synthesis. The development of a potent and selective DASI should allow the therapeutic potential of dual aromatase-sulfatase inhibition in hormone-dependent breast cancer to be assessed.

  DOI：

  10.1021/jm061462b
• 作为产物：
  描述：

  苯甲酸-4-甲基苯酯 生成 (2-Brom-4-methylphenyl)-benzoat
  参考文献：
  名称：

  Kauschke, Journal fur praktische Chemie (Leipzig 1954), 1895, vol. <2> 51, p. 212

  摘要：

  DOI：

文献信息

• Bu3SnH mediated oxidative radical cyclisations: synthesis of 6H-benzo[c]chromen-6-ones †
  作者：W. Russell Bowman、Emma Mann、Jonathan Parr

  DOI：10.1039/b002539i

  日期：——

  Attempts to synthesise 6H-benzo[c]chromen-6-ones by Bu3SnH mediated cyclisation of o-(benzoyl)aryl radicals failed because of the preferred trans conformation of the ester. This problem was overcome by using cyclisation of o-(benzyloxy)aryl and o-[(aryloxy)methyl]aryl radicals to yield 6H-benzo[c]chromenes followed by oxidation to the 6H-benzo[c]chromen-6-ones. 3-Methoxy-6H-benzo[c]chromen-6-one 1, one of the main biologically active constituents of shilajit, a herbal medicine used in countries surrounding the Himalayan mountains, was synthesised using Bu3SnH mediated cyclisation of 1-benzyloxy-2,4-dibromo-5-methoxybenzene 31 to yield 3-methoxy-6H-benzo[c]chromene 25 followed by PCC oxidation of the 6-position. In order to avoid the problems of rearrangement, the aryl radical cyclisation must be designed such that whichever way the spirodienyl intermediate rearranges, the same product is obtained. For instance, the Bu3SnH mediated cyclisation of 1-iodo- and 1-bromo-2-(3-methoxyphenyloxymethyl)benzenes 22 and 23 respectively gave both the isomers, 1-methoxy-6H-benzo[c]chromenes 24 and 3-methoxy-6H-benzo[c]chromenes 25via rearrangement of the intermediate spirodienyl radical. The synthesised 6H-benzo[c]chromenes were oxidised in high yield to the corresponding 6H-benzo[c]chromen-6-ones. The mechanism of the ‘oxidative’ Bu3SnH mediated cyclisation is discussed.

  通过 Bu3SnH 介导的邻（苯甲酰基）芳基环化合成 6H-苯并[c]色烯-6-酮的尝试失败了，因为酯的反式构象是首选的。通过使用邻（苄氧基）芳基和邻[（芳氧基）甲基]芳基环化生成 6H-苯并[c]色烯，然后氧化成 6H-苯并[c]色烯-6-酮，这一问题得以解决。3- 甲氧基-6H-苯并[c]色烯-6-酮 1 是喜马拉雅山脉周边国家使用的一种草药--希拉吉特的主要生物活性成分之一，该化合物是利用 Bu3SnH 介导 1-苄氧基-2,4-二溴-5-甲氧基苯 31 环化生成 3-甲氧基-6H-苯并[c]色烯 25，然后在 6 位进行 PCC 氧化合成的。为了避免重排问题，芳基自由基环化必须设计成无论螺二烯基中间体如何重排，都能得到相同的产物。例如，Bu3SnH 介导的 1-碘和 1-溴-2-(3-甲氧基苯氧基甲基)苯 22 和 23 的环化，通过中间螺二烯基的重排，分别得到了异构体 1-甲氧基-6H-苯并[c]色烯 24 和 3-甲氧基-6H-苯并[c]色烯 25。合成的 6H-苯并[c]色烯被高产率氧化成相应的 6H-苯并[c]色烯-6-酮。本文讨论了 Bu3SnH 介导的 "氧化 "环化机制。
• Pd‐Catalyzed Synthesis of Aryl Esters Involving Difluorocarbene Transfer Carbonylation
  作者：Lu Wang、Chengxian Hu、Xue Yang、Ying Fu、Zhengyin Du

  DOI：10.1002/ejoc.202400032

  日期：2024.3.11

  An effective approach of Pd-catalyzed aryl halides, phenols to access of aryl esters is developed by difluorocarbene as a carbonyl source. This enables the three-component reaction to be formed directly one C−O, one C=O and one C−C bonds in a one-pot, one-step reaction, without extra separating and purifying the intermediate product.

  以二氟卡宾为羰基源，开发了一种Pd催化芳基卤化物、酚类制备芳基酯的有效方法。这使得三组分反应能够在一锅一步反应中直接形成一个CO、一个C=O和一个CC键，而无需额外分离和纯化中间产物。
• Bromination of Benzoic Esters of Some Phenolic Compounds
  作者：L. Chas Raiford、John E. Milbery

  DOI：10.1021/ja01327a060

  日期：1934.12
• Kauschke, Journal fur praktische Chemie (Leipzig 1954), 1895, vol. <2> 51, p. 212
  作者：Kauschke

  DOI：——

  日期：——
• Hellwinkel, Dieter; Laemmerzahl, Frank; Hofmann, Gunter, Chemische Berichte, 1983, vol. 116, # 10, p. 3375 - 3405
  作者：Hellwinkel, Dieter、Laemmerzahl, Frank、Hofmann, Gunter

  DOI：——

  日期：——