N-(4-methylphenyl)octadecanamide | 52097-69-5

• 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: N-(4-methylphenyl)octadecanamide
• 英文别名: N-p-tolyl stearamide；stearic acid p-toluidide；Stearinsaeure-p-toluidid；Stearoyl-p-toluidine
• CAS: 52097-69-5
• 化学式: C₂₅H₄₃NO
• 分子量: 373.623
• InChiKey: LZQFKVOQGGHIFG-UHFFFAOYSA-N

物化性质

• 熔点：
  67-69 °C(Solv: ethanol (64-17-5))
• 沸点：
  513.4±19.0 °C(Predicted)
• 密度：
  0.927±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  10.1
• 重原子数：
  27
• 可旋转键数：
  17
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.72
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  1,3-二对甲苯基碳二酰亚胺 生成 N-(4-methylphenyl)octadecanamide
  参考文献：
  名称：

  Unusual clinical manifestation of pheochromocytoma in a MEN2A patient

  摘要：

  A case of unusual clinical manifestation of pheochromocytoma in a type 2A multiple endocrine neoplasia (MEN2A) patient is presented. A 27-year-old man affected by MEN2A syndrome; complaining of anxiety and depression, was admitted in our Division. Past medical history included a total thyroidectomy for medullary carcinoma in 1985, and left adrenalectomy for pheochromocytoma in 1994. Blood pressure was 130/85 mmHg without orthostatic hypotension and pulse rate was 72 beats/min. Laboratory data revealed thyroid hormones and carcinoembryonic antigen (CEA) in the normal range and high basal serum calcitonin levels (158 pg/ml). Plasma catecholamines and vanillymandelic acid resulted in normal levels but epinephrine/norepinephrine ratio was elevated (0.65). The glucagon stimulation test showed positive clinical and biochemical response. Magnetic resonance imaging (MRI) and meta-iodobenzylguanidine (MIBG) scintiscan confirmed the presence of bilateral adrenal masses. Bilateral adrenalectomy by laparoscopic anterior approach was performed. Histology was consistent with adrenal pheochromocytomas. After surgical approach, psychiatric findings disappeared and did not recur at follow-up in spite of no medication for two years. In conclusion, bilateral pheochromocytoma is more frequent in MEN2A syndrome and probably understimated if the follow-up is not prolonged. In these cases clinical features are often aspecific and basal hormonal data may be normal in a great number of patients. Therefore long-term observation is justified in these patients. Pheochromocytoma was described as the "great mimic" for the numerous subjective manifestations. Differential diagnosis among typical features of neuropsychiatric disorders and pheochromocytoma must be considered. (C) 2002, Editrice Kurtis.

  DOI：

  10.1007/bf03343961

文献信息

• Nano-Magnetic Sulfonic Acid Catalyzed Facile Synthesis of Diverse Amide Derivatives
  作者：Subramaniapillai Ganesan、Jagatheeswaran Kothandapani、Asaithampi Ganesan

  DOI：10.1055/s-0036-1588319

  日期：——

  excellent surface catalytic potential of Fe3O4–OSO3H is utilized in the synthesis of symmetrically and unsymmetrically substituted urea derivatives via transamidation reactions. The scope of the surface catalysis is further extended in transamidation reactions of cyclic and acyclic amide derivatives, and in the amidation of fatty acids. In both transamidation and amidation reactions, the catalyst is reusable

  摘要 Fe 3 O 4 -OSO 3 H的优异的表面催化潜力可用于通过氨基转移反应合成对称和不对称取代的脲衍生物。在环和无环酰胺衍生物的氨基转移反应以及脂肪酸的酰胺化反应中，表面催化的范围进一步扩大。在氨基转移和酰胺化反应中，该催化剂可重复使用多达五次，而活性没有明显损失。 Fe 3 O 4 -OSO 3 H的优异的表面催化潜力可用于通过氨基转移反应合成对称和不对称取代的脲衍生物。在环和无环酰胺衍生物的氨基转移反应以及脂肪酸的酰胺化反应中，表面催化的范围进一步扩大。在氨基转移和酰胺化反应中，该催化剂可重复使用多达五次，而活性没有明显损失。
• SULFONAMIDE-BASED ORGANOCATALYSTS AND METHOD FOR THEIR USE
  申请人：Carter Rich Garrett

  公开号：US20100184986A1

  公开（公告）日：2010-07-22

  Organocatalysts, particularly proline sulfonamide organocatalysts, having a first general formula as follows are disclosed. Embodiments of a method for using these organocatalysts also are disclosed. The method comprises providing a disclosed organocatalyst, and performing a reaction, often an enantioselective or diastereoselective reaction, using the organocatalyst. Solely by way of example, disclosed catalysts can be used to perform aldol reactions, conjugate additions, Michael additions, Robinson annulations, Mannich reactions, α-aminooxylations, α-hydroxyaminations, α-aminations and alkylation reactions. Certain of such reactions are intramolecular cyclizations used to form cyclic compounds, such as 5- or 6-membered rings, having one or more chiral centers. Disclosed organocatalysts generally are much more soluble in typical solvents used for organic synthesis than are known compounds. Moreover, the reaction yield is generally quite good with disclosed compounds, as is their enantioselective and diastereoselective effectiveness.

  披露了具有如下一般公式之一的有机催化剂，尤其是脯氨酸磺酰胺有机催化剂。还披露了使用这些有机催化剂的方法的实施例。该方法包括提供一种披露的有机催化剂，并使用该有机催化剂进行反应，通常是立体选择性的反应或对映选择性反应。仅作为示例，披露的催化剂可用于进行aldol反应、共轭加成、Michael加成、Robinson环化反应、Mannich反应、α-氨基氧化、α-羟基胺化、α-胺化和烷基化反应。其中一些反应是分子内环化反应，用于形成具有一个或多个手性中心的环状化合物，例如5或6元环。披露的有机催化剂通常比已知的化合物更容易溶于用于有机合成的典型溶剂中。此外，使用披露化合物的反应收率通常相当好，它们的对映选择性和非对映选择性效果也很好。
• ZnO nanofluid as a structure base catalyst for chemoselective amidation of aliphatic carboxylic acids
  作者：Fatemeh Tamaddon、Fatemeh Aboee、Alireza Nasiri

  DOI：10.1016/j.catcom.2011.09.023

  日期：2011.11

  ZnO nanofluids were synthesized and utilized as a new reaction media in the preparation of amides via direct amidation of aliphatic carboxylic acids with primary amines under solvent-free conditions. High yields and good selectivity are achieved with this psudo-homogeneous catalyst, while the recovered nanoZnO was reusable.

  合成了ZnO纳米流体，并通过无溶剂条件下脂族羧酸与伯胺的直接酰胺化反应，将其用作制备酰胺的新反应介质。用这种假均相催化剂可实现高收率和良好的选择性，而回收的纳米ZnO可重复使用。
• Robertson, Journal of the Chemical Society, 1908, vol. 93, p. 1037
  作者：Robertson

  DOI：——

  日期：——
• Nano Sulfated Titania as Solid Acid Catalyst in Direct Synthesis of Fatty Acid Amides
  作者：Mona Hosseini-Sarvari、Esmat Sodagar、Mohammad Mahdi Doroodmand

  DOI：10.1021/jo2002769

  日期：2011.4.15

  Nanosized sulfated titania was prepared by a sol gel hydrothermal process. X-ray diffraction (XRD), transmission electron, and scanning electron micrographs (TEM and SEM), FT-IR specific surface area, and BET N(2) adsorption were employed to characterize the properties of the synthesized sulfated TiO(2). The results indicate that both anatase and rutile TiO(2) are obtainable. This prepared sulfated titania showed high catalytic activity in direct amidation of fatty acids as well as benzoic acids with various amines under solvent-free conditions.