(E)-N'-benzylidenebenzohydrazide | 14850-89-6

• 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: (E)-N'-benzylidenebenzohydrazide
• 英文别名: benzaldehyde benzoylhydrazone；benzaldehyde N-benzoylhydrazone；(E)-N′-benzylidenebenzohydrazide；N'-[(E)-Phenylmethylidene]benzohydrazide；N-[(E)-benzylideneamino]benzamide
• CAS: 14850-89-6
• 化学式: C₁₄H₁₂N₂O
• 分子量: 224.262
• InChiKey: RISHSDLMXPLIHT-RVDMUPIBSA-N

物化性质

• 熔点：
  205 °C
• 密度：
  1.07±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  17
• 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：
  41.5
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-N'-benzylidenebenzohydrazide 以 phosphate buffer 、 乙醇 为溶剂， 生成 苯甲酰肼
  参考文献：
  名称：

  通过可逆的形成来控制挥发性醛和酮的释放-经典“香精”正在发展。

  摘要：

  发现通过在水中可逆地形成芳香醛和/或酮与酰肼的共价酰基obtained形成的动态混合物是用于控制释放高挥发性有机分子的有效递送系统。

  DOI：

  10.1039/b602312f
• 作为产物：
  描述：

  (Z)-N'-benzylidenebenzhydrazide 以 乙腈 为溶剂， 反应 3.33h， 生成 (E)-N'-benzylidenebenzohydrazide
  参考文献：
  名称：

  Acylhydrazones as Widely Tunable Photoswitches

  摘要：

  Molecular photoswitches have attracted much attention in biological and materials contexts. Despite the fact that existing classes of these highly interesting functional molecules have been heavily investigated and optimized, distinct obstacles and inherent limitations remain. Considerable synthetic efforts and complex structure property relationships render the development and exploitation of new photoswitch families difficult. Here, we focus our attention on acylhydrazones: a novel, yet underexploited class of photochromic molecules based on the imine structural motif. We optimized the synthesis of these potent photoswitches and prepared a library of over 40 compounds, bearing different substituents in all four crucial positions of the backbone fragment, and conducted a systematic study of their photochromic properties as a function of structural variation. This modular family of organic photoswitches offers a unique combination of properties and the compounds are easily prepared on large scales within hours, through an atom-economic synthesis, from commercially available starting materials. During our thorough spectroscopic investigations, we identified photoswitches covering a wide range of thermal half-lives of their (Z)-isomers, from short-lived T-type to thermally stable P-type derivatives. By proper substitution, excellent band separation between the absorbance maxima of (E)- and (Z)-isomers in the UV or visible region could be achieved. Our library furthermore includes notable examples of rare negative photochromic systems, and we show that acylhydrazones are highly fatigue resistant and exhibit good quantum yields.

  DOI：

  10.1021/jacs.5b09519

文献信息

• Oxidative Cyclization of Aromatic Aldehyde<i>N</i>‐Acylhydrazones by bis(Trifluoroacetoxy)iodobenzene
  作者：Zhenhua Shang

  DOI：10.1080/00397910600773650

  日期：2006.10

  Abstract Aromatic aldehyde N‐acylhydrazones were oxidized into 2,5‐disubstituted 1,3,4‐oxadiazoles with bis(trifluoroacetoxy)iodobenzene in CHCl3 or DMSO at room temperature in good to excellent yields.

  摘要 芳香醛 N-酰基腙在室温下用双（三氟乙酰氧基）碘苯在 CHCl3 或 DMSO 中氧化成 2,5-二取代的 1,3,4-恶二唑，产率良好至极好。
• Synthesis, oxidation and dehydrogenation of cyclic N,O- and N,S-acetals. Part III. Transformation of N,O-acetals: 3-acyl-1,3,4-oxadiazolines
  作者：László Somogyi

  DOI：10.1002/jhet.5570440603

  日期：2007.11

  Various aldehyde and ketone acylhydrazones are synthesized and, under acylating conditions, cyclized into 3-acyl-1,3,4-oxadiazolines. The scope and limitations of these cyclizations and the possible side reactions (e.g. formation of the open-chain N,O-acylhydrazinocarbinols) are dissected. For the first time, simple, convenient and efficient dehydrogenations of 3-acyl-1,3,4-oxadiazolines to oxadiazoles

  合成了各种醛和酮酰基hydr，并在酰化条件下将其环化成3-酰基-1,3,4-恶二唑啉。剖析了这些环化作用的范围和局限性以及可能的副反应（例如，形成开链的N，O-酰基肼基碳氢化合物）。首次提出了通过高锰酸钾或更简单地用硝酸铈铈（IV）铵（CAN）处理将3-酰基-1,3,4-恶二唑啉简单，方便，有效地脱氢为恶二唑的方法。2,2-二取代的3-酰基-1,3,4-恶二唑啉以及醛二酰基hydr的CAN氧化（2,5-二取代的3-酰基-1,3,4-恶二唑啉的开链异构体）再生母体羰基化合物。
• Toward a Versatile Allylation Reagent:  Practical, Enantioselective Allylation of Acylhydrazones Using Strained Silacycles
  作者：Richard Berger、Philippe M. A. Rabbat、James L. Leighton

  DOI：10.1021/ja035001g

  日期：2003.8.1

  A highly practical method for the enantioselective allylation of acylhydrazones has been developed. The previously reported strained silacycle reagent 1 reacts with a wide variety of acylhydrazones to give the hydrazide products with good enantioselectivity (83-89% ee, typically). It has been demonstrated that the products may be isolated without chromatography by recrystallization in >/=98% ee.

  已经开发了一种用于酰基腙的对映选择性烯丙基化的非常实用的方法。先前报道的应变硅环试剂 1 与多种酰基腙反应，得到具有良好对映选择性（通常为 83-89% ee）的酰肼产物。已经证明可以通过在≥98% ee中重结晶而无需色谱法来分离产物。
• Microwave assisted syntheses of 2,5-disubstituted 1,3,4-oxadiazoles
  作者：Shahnaz Rostamizadeh、S.A. Ghasem Housaini

  DOI：10.1016/j.tetlet.2004.09.095

  日期：2004.11

  2,5-Disubstituted 1,3,4-oxadiazoles have been synthesized by oxidation of 1-aroyl-2-arylidene hydrazines with potassium permanganate on the surface of a solid mineral support as well as in mixtures of acetone and water under microwave irradiation.

  通过在固体矿物载体的表面上以及在丙酮和水的混合物中于微波辐射下用高锰酸钾氧化1-芳基-2-亚芳基肼来合成2,5-二取代的1,3,4-恶二唑。
• Lewis Acid-Catalyzed Allylation Reactions of Acylhydrazones with Tetraallyltin in Aqueous Media
  作者：Shū Kobayashi、Tomoaki Hamada、Kei Manabe

  DOI：10.1055/s-2001-15166

  日期：——

  Allylation reactions of various benzoylhydrazones with tetraallyltin were found to proceed smoothly in the presence of scandium triflate as a Lewis acid catalyst at ambient temperature in aqueous media, to afford the corresponding homoallylic amine derivatives in high yields. Three-component reactions of aldehydes, benzoylhydrazine, and tetraallyltin were also catalyzed by scandium triflate in the same media. Furthermore, a simple procedure to prepare oxazolidinone derivatives utilizing these reactions was developed.

  在水相介质中，在三氟甲磺酸钪作为路易斯酸催化剂的存在下，多种苯甲酰肼与四烯基锡的烯化反应在室温下顺利进行，以高产率生成相应的同烯丙基胺衍生物。醛、苯甲酰肼和四烯基锡的三组分反应也可以在相同介质中通过三氟甲磺酸钪催化。此外，还开发了一种利用这些反应制备恶唑啉酮衍生物的简单方法。

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