1-(4-methoxyphenyl)pentane-1,2-dione | 33720-27-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1-(4-methoxyphenyl)pentane-1,2-dione
• 英文别名: 1-(4-Methoxyphenyl)-2-propyl-ethandion
• CAS: 33720-27-3
• 化学式: C₁₂H₁₄O₃
• 分子量: 206.241
• InChiKey: JEMBEAWNJXEIQI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  15
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 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：

  1-(4-methoxyphenyl)pentane-1,2-dione 在 三氟二甲基硫醚络合物 、 air 、 溶剂黄146 作用下， 以 二氯甲烷 为溶剂， 生成
  参考文献：
  名称：

  Estrogenic diazenes: heterocyclic non-steroidal estrogens of unusual structure with selectivity for estrogen receptor subtypes

  摘要：

  Estrogens regulate many biological functions, often acting in a tissue-selective manner. Their tissue-selective action is believed to involve differential estrogen action through the two estrogen receptor (ER) subtypes, ERalpha and ERbeta, as well as differential interaction of the ligand-receptor complexes with promoters and coregulator proteins. In the latter case, selectivity is based on the induction of specific conformations of the ligand-ER complex, conformations that are influenced by the structure of the ligand. Estrogen pharmaceuticals having an ideal balance of tissue-selective activity are being sought for menopausal hormone replacement, breast cancer prevention and therapy, and other actions. To expand on the structural diversity of ER ligands that might show such tissue selectivity, we have prepared a series of diazenes (pyrazines, pyrimidines, and pyridazines) substituted with two to four aryl groups and various short-chain aliphatic substituents. All of the pyrazine and pyrimidines bind to ER, some with high affinity and with a considerable degree of preferential binding to either ERalpha or ERbeta. One pyrimidine and one pyrazine have ERalpha affinity preferences as high as 23 and 9, respectively, and one pyrimidine has an ERP affinity preference of 8. The pyridazines, by contrast, are quite polar and have only very low binding affinity for the ER. In cell-based transcription assays, several of the pyrimidines and a pyrazine were found to be considerably more agonistic on ERalpha than on ERbeta. Because these triaryl diazenes have the largest volumes among the ER ligands so far investigated, their high affinity demonstrates the flexibility of the ligand binding pocket of the ERs and its tolerance for large substituents. Thus, these novel heterocyclic ligands expand the repertoire of chemical structures that bind to the estrogen receptor, and they could prove to be useful in elucidating the biological behavior of the two ER subtypes and in forming the basis for new estrogen pharmaceuticals having desirable tissue selectivity. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(02)00309-7

文献信息

• Chlorotrimethylsilane and Sodium Iodide: A Useful Combination for the Regioselective Deoxygenation of Arylalkyl-α-Diketones
  作者：Ling-Zhi Yuan、Guangkuan Zhao、Abdallah Hamze、Mouad Alami、Olivier Provot

  DOI：10.1002/adsc.201700276

  日期：2017.8.7

  series of variously functionalized alkylbenzylketones. A large range of functional groups were well tolerated on the ortho‐, meta‐ and para‐positions by this mild process regardless of their electronic effects, demonstrating the general character of the present methodology. The trimethylsilylchloride/sodium iodide reducing process was also successfully applied to reduce α‐ketoacid and α‐ketoester substrates

  据报道，三甲基甲硅烷基氯化物/碘化钠可有效地对芳基烷基1,2-二酮进行区域选择性脱氧。在所有情况下，脱氧都在室温下在二氯甲烷中芳族环附近的羰基基团（Cα= O）上以高收率进行，从而提供了一系列各种官能化的烷基苄基酮。不管它们的电子作用如何，通过这种温和的过程，对邻位，间位和对位的各种官能团都具有良好的耐受性，这证明了本方法学的一般特征。三甲基甲硅烷基氯/碘化钠还原工艺也成功地用于还原α-酮酸和α-酮酸酯底物。