2,5-bis(methoxymethoxy)-4-bromotoluene | 681473-22-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 2,5-bis(methoxymethoxy)-4-bromotoluene
• 英文别名: 1-Bromo-2,5-bis(methoxymethoxy)-4-methylbenzene
• CAS: 681473-22-3
• 化学式: C₁₁H₁₅BrO₄
• 分子量: 291.142
• InChiKey: POXBGEYZRUMHPP-UHFFFAOYSA-N

物化性质

• 熔点：
  72-74 °C(Solv: dichloromethane (75-09-2); hexane (110-54-3))
• 沸点：
  351.1±42.0 °C(Predicted)
• 密度：
  1.350±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  36.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,5-bis(methoxymethoxy)-4-bromotoluene 在 盐酸 、 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 、 水 为溶剂， 反应 2.33h， 生成 2,5-二羟基-4-甲基苯甲醛
  参考文献：
  名称：

  Evaluation of HIV-1 inhibition by stereoisomers and analogues of the sesquiterpenoid hydroquinone peyssonol A

  摘要：

  Peyssonol A, a brominated natural product with documented anti-HIV-1 activity, was synthesized racemically along with 6 isomers and 15 truncated analogues and synthetic precursors. These compounds were screened in a cell-based assay against a recombinant HIV-1 strain to investigate structure-activity relationships. The results obtained suggest that both the aliphatic and aromatic domains of peyssonol A are responsible for its potency, while the stereochemical configuration of the substituents on the aliphatic domain, including their bromine atom, are largely irrelevant. Although none of the analogues tested were as potent as the parent natural product, several exhibited greater therapeutic indices due to reduced cytotoxicity, noting that nearly all compounds tested were measurably cytotoxic. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2013.01.098
• 作为产物：
  描述：

  2,5-二溴对苯二酚 在 正丁基锂 、 sodium hydride 作用下， 以 四氢呋喃 、 正己烷 、 mineral oil 为溶剂， 反应 3.41h， 生成 2,5-bis(methoxymethoxy)-4-bromotoluene
  参考文献：
  名称：

  Evaluation of HIV-1 inhibition by stereoisomers and analogues of the sesquiterpenoid hydroquinone peyssonol A

  摘要：

  Peyssonol A, a brominated natural product with documented anti-HIV-1 activity, was synthesized racemically along with 6 isomers and 15 truncated analogues and synthetic precursors. These compounds were screened in a cell-based assay against a recombinant HIV-1 strain to investigate structure-activity relationships. The results obtained suggest that both the aliphatic and aromatic domains of peyssonol A are responsible for its potency, while the stereochemical configuration of the substituents on the aliphatic domain, including their bromine atom, are largely irrelevant. Although none of the analogues tested were as potent as the parent natural product, several exhibited greater therapeutic indices due to reduced cytotoxicity, noting that nearly all compounds tested were measurably cytotoxic. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2013.01.098

文献信息

• Synthesis of Aromatic Bisabolene Natural Products via Palladium-Catalyzed Cross-Couplings of Organozinc Reagents
  作者：James R. Vyvyan、Celeste Loitz、Ryan E. Looper、Cheryl S. Mattingly、Emily A. Peterson、Steven T. Staben

  DOI：10.1021/jo035778s

  日期：2004.4.1

  Aromatic bisabolene derivatives were prepared by two methods involving cross-coupling of organozinc reagents. The first synthesis of (±)-glandulone A (10), as well as syntheses of (±)-curcuhydroquinone (8) and (±)-curcuquinone (9), were accomplished via coupling of a secondary alkyl zinc reagent (1,5-dimethyl-4-hexenylzinc halide, 18) to protected bromohydroquinones using Pd(dppf)Cl2 as catalyst. Coupling

  通过两种方法将芳族双sabolene衍生物制备，该方法涉及有机锌试剂的交叉偶联。（±）-格兰丁酮A（10）的首次合成，以及（±）-curcuhydroquinone（8）和（±）-curcuquinone（9）的合成是通过偶联烷基锌锌试剂（1，使用Pd（dppf）Cl 2作为催化剂，将5-二甲基-4-己烯基卤化锌（18）还原成受保护的溴代氢醌。使用Pd（PPh 3）4催化剂将芳基锌卤化物与三氟甲磺酸烯基酯16偶联提供了许多双萜烯衍生物，并导致了脱氢-α-姜黄烯（2），（±）-姜酚（3）的合成。）和（±）-elvirol（13）。还报道了使用该方法的高产率合成（±）-香螺酚D前体29。
• UNIQUE HALOGEN-INDUCED CYCLIZATIONS, REAGENTS THEREFOR, AND COMPOUNDS PRODUCED THEREBY
  申请人：Snyder Scott Alan

  公开号：US20140243404A1

  公开（公告）日：2014-08-28

  This disclosure is related to halonium compounds useful for cyclization of polyenes, alkenoic acids, and alkenyl alkyl ethers, and halogenation of aromatic compounds. The synthesis of such halonium compounds, compounds made using such halonium compounds, and synthesis of natural compounds, including decalins, using the halonium compounds is also disclosed. A representative halonium compound of the disclosure is:

  本披露涉及有用于多烯环化、烯酸和烯基烷醚环化以及芳香族化合物卤代的卤化物化合物。披露了这种卤化物化合物的合成、使用这种卤化物化合物制备的化合物以及使用卤化物化合物合成天然化合物，包括蒎烯。本披露的代表性卤化物化合物为：