4-氟苯甲醛苯腙 | 352-06-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 4-氟苯甲醛苯腙
• 英文名称: 4-fluorobenzaldehyde phenylhydrazone
• 英文别名: 1-(4-fluorobenzylidene)-2-phenylhydrazine；4-Fluorobenzaldehyde 2-phenylhydrazone；N-[(4-fluorophenyl)methylideneamino]aniline
• CAS: 352-06-7
• 化学式: C₁₃H₁₁FN₂
• 分子量: 214.242
• InChiKey: UJIZDNUCCQBVBS-UHFFFAOYSA-N

物化性质

• 沸点：
  323.6±34.0 °C(Predicted)
• 密度：
  1.08±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  24.4
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-氟苯甲醛苯腙 在 copper(II) bis(trifluoromethanesulfonate) 、 sodium hydride 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 28.5h， 生成 1-benzyl-2-(4-fluorophenyl)-1H-benzo[d]imidazole
  参考文献：
  名称：

  Copper-Mediated Synthesis of Substituted 2-Aryl-N-benzylbenzimidazoles and 2-Arylbenzoxazoles via C–H Functionalization/C–N/C–O Bond Formation

  摘要：

  An efficient method for the transformation of N-benzyl bisarylhydrazones and bisaryloxime ethers to functionalized 2-aryl-N-benzylbenzimidazoles and 2-arylbenzoxazoles is described. The protocol involves a copper(II)-mediated cascade C-H functionalization/C-N/C-O bond formation under neutral conditions. Substrates having either electron-donating or -withdrawing substituents undergo the cyclization to afford the target heterocycles at moderate temperature.

  DOI：

  10.1021/jo2005632
• 作为产物：
  描述：

  苯胺 在 盐酸 、 sodium acetate 、 sodium nitrite 作用下， 以 乙醇 、 水 为溶剂， 反应 0.75h， 生成 4-氟苯甲醛苯腙
  参考文献：
  名称：

  Copper-Mediated Synthesis of Substituted 2-Aryl-N-benzylbenzimidazoles and 2-Arylbenzoxazoles via C–H Functionalization/C–N/C–O Bond Formation

  摘要：

  An efficient method for the transformation of N-benzyl bisarylhydrazones and bisaryloxime ethers to functionalized 2-aryl-N-benzylbenzimidazoles and 2-arylbenzoxazoles is described. The protocol involves a copper(II)-mediated cascade C-H functionalization/C-N/C-O bond formation under neutral conditions. Substrates having either electron-donating or -withdrawing substituents undergo the cyclization to afford the target heterocycles at moderate temperature.

  DOI：

  10.1021/jo2005632

文献信息

• Stereospecific Copper(II)-Catalyzed Tandem Ring Opening/Oxidative Alkylation of Donor–Acceptor Cyclopropanes with Hydrazones: Synthesis of Tetrahydropyridazines
  作者：Manmath Mishra、Pinaki Bhusan De、Sourav Pradhan、Tharmalingam Punniyamurthy

  DOI：10.1021/acs.joc.9b01506

  日期：2019.9.6

  Aerobic copper(II)-catalyzed tandem ring opening and oxidative C–H alkylation of donor–acceptor cyclopropanes with bisaryl hydrazones is accomplished to produce tetrahydropyridazines, in which copper(II) plays dual role as a Lewis acid as well as redox catalyst. The reaction is stereospecific, and optically active cyclopropanes can be reacted with high optical purities (89–98% enantiomeric excess)

  好氧铜（II）催化的串联环开环和供体-受体环丙烷与双芳基的氧化CH烷基化反应可制得四氢哒嗪，其中铜（II）既起路易斯酸的作用，又起氧化还原催化剂的作用。该反应具有立体特异性，旋光性环丙烷可以高光学纯度（过量89-98％对映异构体）进行反应。底物范围，官能团耐受性，铜（II）催化剂的双重作用以及使用空气作为氧化剂是重要的实用功能。带有3-溴芳基的产物可以高产率地与硼酸进行Pd催化的Suzuki偶联。
• The use of enaminones and enamines as effective synthons for MSA-catalyzed regioselective synthesis of 1,3,4-tri- and 1,3,4,5-tetrasubstituted pyrazoles
  作者：Liancheng Duan、Hui Zhou、Yucheng Gu、Ping Gong、Mingze Qin

  DOI：10.1039/c9nj03701b

  日期：——

  In the present work, an efficient regioselective synthesis of 1,3,4-tri- and 1,3,4,5-tetrasubstituted pyrazoles via a methanesulfonic acid (MSA)-catalyzed reaction of hydrazones with enaminones or enamines is reported. Mechanistically, the formation of the title compounds involves the [2+3] cycloaddition of hydrazones with enaminones or enamines followed by aromatization with acid and oxygen. This

  在本工作中，已报道了通过甲磺酸（MSA）催化的azo与烯胺酮或烯胺的反应有效地区域选择性合成1,3,4-三-和1,3,4,5-四取代的吡唑。从机理上讲，标题化合物的形成涉及与烯胺酮或烯胺的[2 + 3]环加成，然后用酸和氧进行芳构化。在温和条件下使用各种，烯胺酮和烯胺进行这种方便的方法具有良好的耐受性，从而可以以良好或极好的收率提供产品。与文献方法相比，该策略具有诸如可经济获得的材料，无金属催化，优异的区域选择性和高效率等优点。
• Radical Addition of Hydrazones by α-Bromo Ketones To Prepare 1,3,5-Trisubstituted Pyrazoles via Visible Light Catalysis
  作者：Xiu-Wei Fan、Tao Lei、Chao Zhou、Qing-Yuan Meng、Bin Chen、Chen-Ho Tung、Li-Zhu Wu

  DOI：10.1021/acs.joc.6b00992

  日期：2016.8.19

  novel efficient tandem reaction of hydrazones and α-bromo ketones is reported for the preparation of 1,3,5-trisubstituted pyrazoles by visible light catalysis. In this system, the monosubstituted hydrazones show wonderful reaction activity with alkyl radicals, generated from α-bromo ketones. A radical addition followed by intramolecular cyclization affords the important pyrazole skeleton in good to

  visible和α-溴代酮的新型高效串联反应据报道可通过可见光催化制备1,3,5-三取代的吡唑。在该系统中，单取代与由α-溴代酮生成的烷基自由基表现出出色的反应活性。自由基加成，随后进行分子内环化，以良好至优异的产率提供了重要的吡唑骨架。这种在温和条件下具有宽泛的群体耐受性的有效策略为1,3,5-三取代的吡唑提供了一种潜在的方法。
• Asymmetric Catalytic 1,3-Dipolar Cycloaddition Reaction of Nitrile Imines for the Synthesis of Chiral Spiro-Pyrazoline-Oxindoles
  作者：Gang Wang、Xiaohua Liu、Tianyu Huang、Yulong Kuang、Lili Lin、Xiaoming Feng

  DOI：10.1021/ol303097j

  日期：2013.1.4

  cycloaddition of nitrile imines with 3-alkenyl-oxindoles was catalyzed by a new chiral Mg(ClO4)2 complex of an N,N′-dioxide ligand. The reaction is so far the sole catalytic synthesis of spiro-pyrazoline-oxindole derivatives. A wide variety of substrates were explored to obtain good yields (up to 98%) and excellent enantioselectivities (up to 99%). This cycloaddition expands the scope of propargyl anion type 1

  新型的N，N'-二氧化物配体的手性Mg（ClO 4）2配合物催化了腈亚胺与3-烯基-氧吲哚的新的1,3-偶极环加成反应。到目前为止，该反应是螺-吡唑啉-羟吲哚衍生物的唯一催化合成。探索了多种底物以获得良好的产率（高达98％）和优异的对映选择性（高达99％）。这种环加成反应扩大了2-吡唑啉亚基结构中1，3-偶极炔丙基阴离子的范围。
• A novel chemoselective synthesis of 3H-spiro[isobenzofuran-1,3′-pyrazole] derivatives by oxidative cleavage of their corresponding dihydroindeno[1,2-c]pyrazoles
  作者：Mohammad Reza Mohammadizadeh、Fatemeh Basti

  DOI：10.1007/s13738-014-0578-4

  日期：2015.7

  This paper reports a new and simple procedure for the synthesis of 3H-spiro[isobenzofuran-1,3′-pyrazole] derivatives by reacting 1-benzylidene-2-phenylhydrazine derivatives with ninhydrin in acetic acid medium at room temperature followed by oxidative cleavage of their corresponding dihydroindeno[1,2-c]pyrazoles. 1-Benzylidene-2-phenylhydrazine derivatives were prepared via the reaction between phenylhydrazine and benzaldehyde derivatives. Easy procedure, mild reaction conditions, high yields in short reaction times, availability of starting materials, and no formation of by-product are the advantages of this approach.

  本文报道了一种新颖且简单的合成3H-螺[异苯并呋喃-1,3′-吡唑]衍生物的方法，即在室温下以乙酸为介质，通过1-苄叉-2-苯基肼衍生物与水合茚三酮反应，随后对其相应二氢茚并[1,2-c]吡唑进行氧化裂解。1-苄叉-2-苯基肼衍生物通过苯肼与苯甲醛衍生物反应制备得到。该方法的优点包括操作简便、反应条件温和、短时间内高产率、起始原料易得以及无副产品生成。