3-phenethylquinazolin-4(3H)-one | 141306-02-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: 3-phenethylquinazolin-4(3H)-one
• 英文别名: 3-Phenethyl-3H-quinazolin-4-one；3-(2-phenylethyl)quinazolin-4-one
• CAS: 141306-02-7
• 化学式: C₁₆H₁₄N₂O
• 分子量: 250.3
• InChiKey: RMCHSBUWPLJCNS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  32.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-phenethylquinazolin-4(3H)-one 在 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 反应 48.0h， 以79%的产率得到3-(2-phenylethyl)-2,4-dihydro-1H-quinazoline
  参考文献：
  名称：

  Synthe`se ete´tudein vitro de l'activite´antiagre´gante plaquettaire de de´rive´s de la te´trahydro-1,2,3,4 quinazoline

  摘要：

  DOI：

  10.1016/0223-5234(89)90058-5
• 作为产物：
  描述：

  2-氨基-N-苯乙基苯甲酰胺 在 orthoformate 作用下， 反应 6.0h， 以76%的产率得到3-phenethylquinazolin-4(3H)-one
  参考文献：
  名称：

  [EN] QUINAZOLINONE COMPOUNDS AS CALCILYTICS
  [FR] COMPOSES DE QUINAZOLINONE UTILISES COMME CALCILYTIQUES

  摘要：

  公开号：

  WO2004041755A3

文献信息

• Radical reactions with 3H-quinazolin-4-ones: synthesis of deoxyvasicinone, mackinazolinone, luotonin A, rutaecarpine and tryptanthrin
  作者：W. Russell Bowman、Mark R. J. Elsegood、Tobias Stein、George W. Weaver

  DOI：10.1039/b614075k

  日期：——

  Alkyl, aryl, heteroaryl and acyl radicals have been cyclised onto the 2-position of 3H-quinazolin-4-one. The side chains containing the radical precursors were attached to the nitrogen atom in the 3-position. The cyclisations take place by aromatic homolytic substitution hence retain the aromaticity of the 3H-quinazolin-4-one ring. The highest yields were obtained using hexamethylditin to facilitate cyclisation rather than reduction without cyclisation. The alkaloids deoxyvasicinone 2, mackinazolinone 3, tryptanthrin 4, luotonin A 5 and rutaecarpine 8 were synthesised by radical cyclisation onto 3H-quinazolin-4-one.

  烷基、芳基、杂芳基和酰基自由基已环化连接到3H-喹唑啉-4-酮的2-位。含有自由基前体的侧链被连接到3-位的氮原子上。环化反应通过芳香均裂取代进行，因此保留了3H-喹唑啉-4-酮环的芳香性。使用六甲基二锡促进环化而不是直接还原而未发生环化，最高产率得以实现。生物碱去氧vasicinone 2、mackinazolinone 3、色胺酮4、luotonin A 5和rutaecarpine 8通过自由基环化反应合成于3H-喹唑啉-4-酮。
• Lanthanum(III) nitrate hexahydrate or p-toluenesulfonic acid catalyzed one-pot synthesis of 4(3H)-quinazolinones under solvent-free conditions
  作者：Manchala Narasimhulu、Kondempudi Chinni Mahesh、Thummalapally Srikanth Reddy、Karuturi Rajesh、Yenamandra Venkateswarlu

  DOI：10.1016/j.tetlet.2006.04.096

  日期：2006.6

  The one-pot synthesis of quinazolinone derivatives from the reaction of anthranilic acid, trialkyl orthoformate and amines in the presence of lanthanum(III) nitrate hexahydrate or p-toluenesulfonic acid has been carried out. The reaction occurred in a few minutes under solvent-free conditions and in excellent yields.

  由邻氨基苯甲酸，原甲酸三烷基酯和胺在六水合硝酸镧（Ⅲ）或对甲苯磺酸的存在下一锅合成喹唑啉酮衍生物。该反应在无溶剂条件下在几分钟内以极高的收率进行。
• <i>N</i>,<i>N</i>-Dimethylformamide as Carbon Synthons for the Synthesis of <i>N</i>-Heterocycles: Pyrrolo/Indolo[1,2-<i>a</i>]quinoxalines and Quinazolin-4-ones
  作者：Shichen Li、Jianing Ren、Chengcheng Ding、Yishou Wang、Chen Ma

  DOI：10.1021/acs.joc.1c02067

  日期：2021.12.3

  N-dimethylformamide (DMF) as synthetic precursors contributing especially the methyl, acyl, and amino groups has played a significant role in heterocycle syntheses and functionalization. In this protocol, a wide range of pyrrolo/indolo[1,2-a]quinoxalines and quinazolin-4-ones were obtained in moderate to good yields by using elemental iodine without any metal or peroxides. We considered that N-methyl and

  N , N-二甲基甲酰胺 (DMF) 作为合成前体，尤其是甲基、酰基和氨基，在杂环合成和功能化中发挥了重要作用。在该协议中，通过使用不含任何金属或过氧化物的元素碘，以中等至良好的收率获得了范围广泛的 pyrrolo/indolo[1,2 - a ]quinoxalines 和 quinazolin-4-ones。我们认为DMF的N-甲基和N-酰基通过不同的机理分别参与并完成反应，这表明DMF的潜力仍有待探索。
• Transition metal-free synthesis of quinazolinones using dimethyl sulfoxide as a synthon
  作者：Seohoo Lee、Jaeuk Sim、Hyeju Jo、Mayavan Viji、Lanka Srinu、Kiho Lee、Heesoon Lee、Vishwanath Manjunatha、Jae-Kyung Jung

  DOI：10.1039/c9ob01629e

  日期：——

  Biologically important quinazolinones have been synthesized from 2-aminobenzamides and DMSO. The key feature of the reaction is the utilization of DMSO as a methine source for intramolecular oxidative annulation. The CNS depressant drug methaqualone has also been synthesized by our methodology. The present method involves the synthesis of quinazolinones with a broad substrate scope and a good yield

  从2-氨基苯甲酰胺和DMSO合成了生物学上重要的喹唑啉酮。该反应的关键特征是利用DMSO作为次甲基源用于分子内氧化环化。我们的方法还合成了CNS抑制剂药物甲喹酮。本方法涉及具有宽底物范围和良好收率的喹唑啉酮的合成。
• Copper-Catalyzed Oxidative Multicomponent Annulation Reaction for Direct Synthesis of Quinazolinones via an Imine-Protection Strategy
  作者：Yantang Liang、Zhenda Tan、Huanfeng Jiang、Zhibo Zhu、Min Zhang

  DOI：10.1021/acs.orglett.9b01608

  日期：2019.6.21

  Via an imine-protection strategy, we herein present an unprecedented copper-catalyzed oxidative multicomponent annulation reaction for direct synthesis of quinazolinones. The construction of various products is achieved via formation of three C–N and one C–C bonds in conjunction with the benzylic functionalization. The merits of easily available feedstocks, naturally abundant catalyst, good functional

  通过亚胺保护策略，我们在这里提出了一种空前的铜催化的氧化多组分环合反应，用于直接合成喹唑啉酮。通过形成三个C–N和一个C–C键以及苄基官能团，可以实现各种产物的构建。易于获得的原料，天然丰富的催化剂，良好的官能团和底物相容性以及作为副产物释放H 2 O的优点，使已开发的化学方法成为获取喹唑啉酮的实用方法。