4,5'-Dimethyl-2'-hydroxy-chalkon | 123716-01-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 英文名称: 4,5'-Dimethyl-2'-hydroxy-chalkon
• 英文别名: 2-Propen-1-one, 1-(2-hydroxy-5-methylphenyl)-3-(4-methylphenyl)-；1-(2-hydroxy-5-methylphenyl)-3-(4-methylphenyl)prop-2-en-1-one
• CAS: 123716-01-8；16635-12-4
• 化学式: C₁₇H₁₆O₂
• 分子量: 252.313
• InChiKey: GRHXLDRSCWJMDC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4,5'-Dimethyl-2'-hydroxy-chalkon 在 N-甲基咪唑 作用下， 以 二甲基亚砜 为溶剂， 反应 6.0h， 以76%的产率得到6,4'-dimethylflavanone
  参考文献：
  名称：

  An efficient and facile synthesis of flavanones catalyzed by N-methylimidazole

  摘要：

  研究人员使用 N-甲基咪唑作为高效催化剂，在二甲基亚砜（DMSO）中将 2? 羟基查耳酮在二甲基亚砜中环化为相应的黄烷酮的高效催化剂进行了研究。 对这一过程的范围进行了研究，并以良好的收率获得了各种黄烷酮类化合物。 得到了各种黄烷酮，而且收率很高。

  DOI：

  10.2298/jsc120629157w
• 作为产物：
  描述：

  2-羟基-5-甲基苯乙酮 、 对甲基苯甲醛 生成 4,5'-Dimethyl-2'-hydroxy-chalkon
  参考文献：
  名称：

  碘介导的 3-碘黄酮直接合成

  摘要：

  摘要 分子碘已被用于区域选择性、一锅法、直接从 2'-烯丙氧基查耳酮、2'-羟基查耳酮和黄酮合成 3-碘黄酮。2'-烯丙氧基查耳酮的烯丙基脱保护、环化脱氢和 α-碘化已在一步中实现，以提供 3-碘黄酮。图形概要

  DOI：

  10.1080/00397911.2018.1440601

文献信息

• Iodine-mediated direct synthesis of 3-iodoflavones
  作者：Avinash M. Patil、Dayanand A. Kamble、Pradeep D. Lokhande

  DOI：10.1080/00397911.2018.1440601

  日期：2018.6.3

  ABSTRACT Molecular iodine has been used for the regioselective, one pot, direct synthesis of 3-iodoflavones from 2′-allyloxy chalcones, 2′-hydroxy chalcones and flavones. Allyl deprotection, cyclization dehydrogenation and α-iodination of 2′-allyloxychalcones has been achieved in a single step to offer 3-iodoflavones. GRAPHICAL ABSTRACT

  摘要 分子碘已被用于区域选择性、一锅法、直接从 2'-烯丙氧基查耳酮、2'-羟基查耳酮和黄酮合成 3-碘黄酮。2'-烯丙氧基查耳酮的烯丙基脱保护、环化脱氢和 α-碘化已在一步中实现，以提供 3-碘黄酮。图形概要
• Synthesis of Some 3-(4-Aryl-benzofuro[3,2-<i>b</i>]pyridin-2-yl)coumarins and Their Antimicrobial Screening
  作者：Anil K. Patel、Niraj H. Patel、Mehul A. Patel、Dinker I. Brahmbhatt

  DOI：10.1002/jhet.778

  日期：2012.5

  The synthesis of some 3‐(4‐aryl‐benzofuro[3,2‐b]pyridin‐2‐yl)coumarins 3a–r has been carried out by the reaction of 3‐coumarinoyl methyl pyridinium salts 1a–c with 2‐arylidene aurones 2a–f in the presence of ammonium acetate and acetic acid under Kröhnke's reaction conditions. All the synthesized compounds were characterized by analytical and spectral data. They have been screened for their antibacterial

  某些3-（4-芳基-苯并呋喃[3,2- b ]吡啶-2-基）香豆素3a-r的合成是通过3-香豆素酰基甲基吡啶鎓盐1a-c与2-亚芳基的反应进行的噢哢2A-F在乙酸铵和乙酸的Kröhnke的反应条件下的存在。所有合成的化合物均通过分析和光谱数据表征。筛选了它们作为革兰氏阴性菌对大肠杆菌（ATCC 25922）的抗菌活性，作为革兰氏阳性菌对枯草芽孢杆菌（ATCC 1633）的研究以及对黑曲霉（ATCC 9029）的抑菌活性。
• Absorption and Fluorescent Studies of 3-Hydroxychromones
  作者：Radhika Khanna、Ramesh Kumar、Aarti Dalal、Ramesh C. Kamboj

  DOI：10.1007/s10895-015-1623-0

  日期：2015.9

  The synthesis and spectral studies of variously substituted 3-hydroxychromones have been carried out. A key relationship between the structural motif of synthesized 3-hydroxychromones (3-HCs) and their fluorescent properties was found. The chromones substituted with electron-donating group at 4′-position expressed the red shift of the N* and T* band and also exhibited the increased fluorescent intensity ratio while the chromones with electron-withdrawing group showed the blue shift of the N* and T* band. Therefore, these 3-HCs may behave as the possible fluorescent probes.

  已经进行了各种取代的3-羟基色酮的合成和光谱研究。发现了合成的 3-羟基色酮 (3-HC) 的结构基序与其荧光特性之间的关键关系。 4'位被给电子基团取代的色酮表现出N*和T*带的红移，并且荧光强度比增加，而带有吸电子基团的色酮则表现出N*和T*带的蓝移。 T*带。因此，这些 3-HC 可能充当可能的荧光探针。
• An unexpected rearrangement-hydration reaction sequence of 2H-chromenes to dihydrochalcones under catalysis of HAuCl4
  作者：Gourhari Maiti、Utpal Kayal、Rajiv Karmakar、Rudraksha N. Bhattacharya

  DOI：10.1016/j.tetlet.2012.08.117

  日期：2012.11

  2-Aryl-2H-chromenes in aqueous DCM medium under catalysis of HAuCl4 are converted into 3-(2-hydroxyaryl)-1-arylpropan-1-ones through hydration-rearrangement reaction sequence in very good yield. The key step probably involves the [1,5] hydride shift followed by the hydrolysis under the reaction condition. The notable advantages of this method are operational simplicity and ease of isolation of products and also provide a pathway to convert the chalcone into DHCs with the transposition of carbonyl group. (C) 2012 Elsevier Ltd. All rights reserved.
• Synthesis of flavanones by use of anhydrous potassium carbonate as an inexpensive, safe, and efficient basic catalyst
  作者：Rina Mondal、Arpita Das Gupta、Asok K. Mallik

  DOI：10.1016/j.tetlet.2011.07.072

  日期：2011.9

  Anhydrous potassium carbonate has been utilized as an inexpensive, safe, and efficient basic catalyst for the synthesis of flavanones starting either from 2'-hydroxychalcones or from 2'-hydroxyacetophenones. In both the cases the favored reaction condition was either refluxing in a solvent with added catalyst or microwave irradiation on the catalyst. (C) 2011 Elsevier Ltd. All rights reserved.