12-(4-bromophenyl)-3,3-dimethyl-3,4-dihydro-1H-benzo[b]xanthenes-1,6,11(2H,12H)-trione | 1262487-87-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 萘并吡喃类
• 英文名称: 12-(4-bromophenyl)-3,3-dimethyl-3,4-dihydro-1H-benzo[b]xanthenes-1,6,11(2H,12H)-trione
• 英文别名: 3,4-dihydro-3,3-dimethyl-12-(4-bromophenyl)-1H-benzo[b]xanthene-1,6,11-(2H,12H)trione；12-(4-bromophenyl)-3,3-dimethyl-2,3,4,12-tetrahydro-1H-benzo[b]xanthene-1,6,11-trione；12-(4-bromophenyl)-3,3-dimethyl-3,4-dihydro-1H-benzo[b]xanthene-1,6,11(2H,12H)-trione；12-(4-bromophenyl)-3,3-dimethyl-4,12-dihydro-2H-benzo[b]xanthene-1,6,11-trione
• CAS: 1262487-87-5
• 化学式: C₂₅H₁₉BrO₄
• 分子量: 463.327
• InChiKey: GVXFHWPZAKDZHG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  30
• 可旋转键数：
  1
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  60.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2-羟基-1,4-萘醌 、 5,5-二甲基-1,3-环己二酮 、 对溴苯甲醛 在 polystyrene supported gallium chloride 作用下， 以 乙醇 为溶剂， 反应 3.5h， 以82%的产率得到12-(4-bromophenyl)-3,3-dimethyl-3,4-dihydro-1H-benzo[b]xanthenes-1,6,11(2H,12H)-trione
  参考文献：
  名称：

  聚苯乙烯负载的GaCl 3作为高效可重复使用的异质路易斯酸催化剂，用于三组分合成苯并氧杂蒽衍生物

  摘要：

  摘要基于萘醌的黄嘌呤，特别是14-芳基-13 H-二苯并[ a，i ] x吨-8,13 （14 H）-二酮和12-芳基-2,3,4,12-四氢-1 H-苯并[通过使用聚苯乙烯负载的三氯化镓作为高活性和生态友好型非均质路易斯酸催化剂，通过简单，温和和有效的三组分偶联程序，以良好至优异的收率获得了b ]吨蒽-1,6,11-三酮。 。该反应还扩展到制备14-芳基-2-羟基-13 H-二苯并[ a，i ]吨蒽-8,13（14 H）-diones。实验和后处理程序非常简单，催化剂可以轻松地从反应混合物中分离出来，并在后续反应中重复使用几次。 图形概要

  DOI：

  10.1007/s00706-013-0931-9

文献信息

• Application of cobalt phthalocyanine as a nanostructured catalyst in the synthesis of biological henna-based compounds
  作者：Mohammad Dashteh、Maliheh Safaiee、Saeed Baghery、Mohammad Ali Zolfigol

  DOI：10.1002/aoc.4690

  日期：2019.4

  The present investigation describes synthesis of a good range of henna‐based compounds in the presence of novel nano cobalt phthalocyanine like molten salt (tetra‐2,3‐pyridiniumporphyrazinato cobalt tribromomethanide) [Co (TPPABr)]CBr3 as an efficient, recyclable and thermally stable heterogeneous catalyst.

  本研究描述了新型纳米酞菁钴的存在等熔融盐（四甲基-2,3- pyridiniumporphyrazinato钴tribromomethanide）[CO（TPPABr）] CBR一个良好的范围的基于指甲花的化合物的合成3作为一种高效，可回收和热稳定的非均相催化剂。
• An Efficient Strategy for the Synthesis of Naphtho[2,3-b][1,6]naphthyridines Promoted by Acetic Acid
  作者：Furen Zhang、Zhenlu Shen、Chunmei Li

  DOI：10.1055/a-1479-4420

  日期：2021.7

  A three-component domino reaction for the synthesis of naphtho[2,3-b][1,6]naphthyridine derivatives has been established. Such strategy exhibited excellent substrate scope including various enaminones and aldehydes that afforded a series of multifunctionalized naphtho[2,3-b][1,6]naphthyridine derivatives with 70–86% yields. The advantages of bond-forming efficiency, accessibility of starting materials

  已经建立了用于合成萘并[2,3-b] [1,6]萘啶衍生物的三组分多米诺反应。这种策略显示出优异的底物范围，包括各种烯胺酮和醛，可提供一系列多官能化的萘并[2,3-b] [1,6]萘啶衍生物，产率为70-86％。形成键的效率，起始原料的可及性以及作为唯一副产物的水的优势为生物1,6-萘啶提供了无价的获取途径。
• Brønsted acidic ionic liquids catalyzed the preparation of 13-aryl-5H-dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraones and 3,4-dihydro-1H-benzo[b]xanthene-1,6,11(2H,12H)-triones
  作者：Hamid Reza Shaterian、Marziyeh Sedghipour、Ebrahim Mollashahi

  DOI：10.1007/s11164-013-1043-1

  日期：2014.4

  An environmentally green method for the synthesis of 13-aryl-5H-dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraone and 3,4-dihydro-1H-benzo[b]xanthene-1,6,11(2H,12H)-trione derivatives using Brønsted acidic ionic liquids, 3-methyl-1-sulfonic acid imidazolium chloride, 1-H-3-methyl-imidazolium hydrogensulfate, triethylamine-bonded sulfonic acid, and triethylammonium hydrogensulfate as reusable catalysts under thermal solvent-free conditions is described.

  一种环境友好的合成方法，用于制备13-芳基-5H-二苯并[b,i]吖啶-5,7,12,14(13H)-四酮和3,4-二氢-1H-苯并[b]吖啶-1,6,11(2H,12H)-三酮衍生物，采用布朗斯特酸性离子液体催化剂，如3-甲基-1-磺酸咪唑氯化物、1-H-3-甲基咪唑硫酸氢盐、三乙胺结合的磺酸以及三乙氨硫酸氢盐，在无溶剂热条件下作为可重复使用的催化剂。
• Phosphoric acid supported on alumina (H3PO4/Al2O3) as an efficient and reusable catalyst for the one-pot synthesis of benzoxanthene pigments
  作者：Hamid Reza Shaterian、Kobra Azizi、Nafiseh Fahimi

  DOI：10.1007/s11164-013-1047-x

  日期：2014.4

  Phosphoric acid supported on alumina (H3PO4/Al2O3) is an efficient catalyst for the catalytic multi-component condensation reaction and a wide variety of syntheses of benzoxanthene pigments in good yields. The remarkable features of this new procedure are high conversions, shorter reaction times, cleaner reaction, and simple experimental and work-up procedures.

  负载于氧化铝上的磷酸（H3PO4/Al2O3）是一种高效的催化剂，可用于催化多组分缩合反应及一系列在良好产率下合成苯并二氧杂蒽类色素的合成中。该新方法的显著特点包括高转化率、较短的反应时间、更纯净的反应过程及简单易行的实验和后处理步骤。
• Polystyrene-supported GaCl3 as a highly efficient and reusable heterogeneous Lewis acid catalyst for the three-component synthesis of benzoxanthene derivatives
  作者：Ali Rahmatpour

  DOI：10.1007/s00706-013-0931-9

  日期：2013.8

  procedure utilizing polystyrene-supported gallium trichloride as a highly active and eco-friendly heterogeneous Lewis acid catalyst. This reaction was also extended to the preparation of 14-aryl-2-hydroxy-13H-dibenzo[a,i]xanthene-8,13(14H)-diones. The experimental and work-up procedure is very simple and the catalyst can be easily separated from the reaction mixture and reused several times in subsequent

  摘要基于萘醌的黄嘌呤，特别是14-芳基-13 H-二苯并[ a，i ] x吨-8,13 （14 H）-二酮和12-芳基-2,3,4,12-四氢-1 H-苯并[通过使用聚苯乙烯负载的三氯化镓作为高活性和生态友好型非均质路易斯酸催化剂，通过简单，温和和有效的三组分偶联程序，以良好至优异的收率获得了b ]吨蒽-1,6,11-三酮。 。该反应还扩展到制备14-芳基-2-羟基-13 H-二苯并[ a，i ]吨蒽-8,13（14 H）-diones。实验和后处理程序非常简单，催化剂可以轻松地从反应混合物中分离出来，并在后续反应中重复使用几次。 图形概要