N,N,N',N'-tetra-isopropyl-p-phenylenediamine | 6864-03-5

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: N,N,N',N'-tetra-isopropyl-p-phenylenediamine
• 英文别名: Tetraisopropyl-p-phenylen-diamin；1-N,1-N,4-N,4-N-tetra(propan-2-yl)benzene-1,4-diamine
• CAS: 6864-03-5
• 化学式: C₁₈H₃₂N₂
• 分子量: 276.465
• InChiKey: HUCOPAJKXPXYSA-UHFFFAOYSA-N

物化性质

• 熔点：
  34.5 °C
• 沸点：
  371.1±15.0 °C(Predicted)
• 密度：
  0.924±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  20
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  6.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N,N,N',N'-tetra-isopropyl-p-phenylenediamine 在 三氯化铝 作用下， 以 二氯甲烷 为溶剂， 生成 N,N,N',N'-tetraisopropyl-p-phenylene-diammonium bis(tetrachloroaluminate)
  参考文献：
  名称：

  Kristallstruktur von N,N,N?,N?-Tetraisopropyl-p-phenylen-diammonium-dichlorid und-bis(tetrachloroaluminat)

  摘要：

  Protonation of the sterically overcrowded N,N,N',N'-tetraisopropyl-p-phenylenediamine leads to a significant shortening of the C-N bond lengths of 7 pm as well as to a widening of the phenyl ipso-angle to 122 degrees. All structural changes can be attributed to the twisted diisopropylammonium substituents and their electron acceptor properties.

  DOI：

  10.1007/bf00807094
• 作为产物：
  描述：

  对苯二胺 在 碘 、 sodium amide 作用下， 以 甲醇 、 苯 为溶剂， 反应 48.0h， 生成 N,N,N',N'-tetra-isopropyl-p-phenylenediamine
  参考文献：
  名称：

  溶液中各种 Wurster 自由基的ESR和ENDOR研究 。实验结果，理论 从头算 和DFT计算

  摘要：

  报告了溶液中几个对称取代的 N ， N ， N '， N'- 四烷基- 对苯 二胺自由基阳离子的ESR和ENDOR光谱 。不同 Ñ ， Ñ ' -烷基取代的 对 苯二胺类，如乙基， Ñ 丙基，和 异丙 丙基衍生物是与亲本相比 Ñ ， Ñ ， Ñ '， Ñ ' -四甲基- p 苯二胺（ 沃斯特 的蓝阳离子）。 ñ 另外，还研究了 N ， N ′， N′- 四苄基- 对苯 二胺，1，4-二吡咯烷基苯 和 N ， N′- 双[4-（二甲基氨基）苯基]哌嗪。比较了实验和计算的超精细耦合常数。报告了乙腈中的特征性UV-VIS数据和氧化还原电位，以及化合物的合成。

  DOI：

  10.1007/s00706-004-0224-4

文献信息

• Bock, Hans; Goebel, Ilka; Naether, Christian, Angewandte Chemie, 1993, vol. 105, # 12, p. 1823 - 1826
  作者：Bock, Hans、Goebel, Ilka、Naether, Christian、Havlas, Zdenek、Gavezzotti, Angelo、Filippini, Guiseppe

  DOI：——

  日期：——
• EIGHT-ARM POLYETHYLENE GLYCOL DERIVATIVE, PRODUCTION METHOD THEREFOR, AND MODIFIEDBIO-RELATEDSUBSTANCETHEREOF
  申请人：XIAMEN SINOPEG BIOTECH CO., LTD

  公开号：US20180214561A1

  公开（公告）日：2018-08-02

  Disclosed are an eight-arm polyethylene glycol (PEG) derivative (formula I), production method therefor and modified bio-related substance thereby. Wherein, one tetravalent group U together with four trivalent groups E c form a highly symmetrical octavalent group CORE 0 ; L c connects the octavalent group to eight PEG chains having polydispersity or monodispersity and having n 1 to n 8 as the degree of polymerization thereof; the terminal of one PEG chain is connected to at least one functional group F (k≥1); said PEG chain and F therebetween can be directly connected (g=0) or be indirectly connected via a linking group L 0 to a terminal end-branching group G (g=1); the latter provides more reactive sites for binding more drug molecules and increases the drug loading. The eight-arm polyethylene glycol derivative has a centrosymmetric or approximately centrosymmetric structure, and leads to more precise control of the molecular weight in large-scale production and much narrower distribution of molecular weight for products. The modified bio-related substance thereby has a more uniform and controllable performance.
• [EN] METHOD FOR DETERMINING AUTHENTICITY AND ADULTERATION OF MARKED PETROLEUM HYDROCARBONS<br/>[FR] PROCÉDÉ PERMETTANT DE DÉTERMINER L'AUTHENTICITÉ ET L'ADULTÉRATION D'HYDROCARBURES PÉTROLIERS MARQUÉS
  申请人：SICPA HOLDING SA

  公开号：WO2021110525A1

  公开（公告）日：2021-06-10

  The present invention provides a method for determining the authenticity of a petroleum hydrocarbon allegedly comprising at least one specific chemical marker, as well as a method for determining adulteration of a petroleum hydrocarbon marked with at least one specific chemical marker. The methods claimed and described herein rely upon the use of specific chemical markers in combination with laser ionization at a wavelength of between about 300 nm and about 370 nm coupled with ion mobility spectrometry or with mass spectrometry.
• [EN] METHOD OF MARKING A PETROLEUM HYDROCARBON<br/>[FR] PROCÉDÉ DE MARQUAGE D'UN HYDROCARBURE DE PÉTROLE
  申请人：SICPA HOLDING SA

  公开号：WO2021110526A1

  公开（公告）日：2021-06-10

  The present invention relates to a method of marking a petroleum hydrocarbon by adding to and uniformly mixing with said petroleum hydrocarbon a chemical marker of general formula (I) wherein two of the residues R1 – R10 are independently of each other selected from C1-C4-alkoxy, and eight of the residues R1 – R10 are independently of each other selected from the group consisting of hydrogen and C1-C4-alkyl, as well as to a composition of a petroleum hydrocarbon comprising a petroleum hydrocarbon and at least one chemical marker of general formula (I). The presence and concentration of the chemical marker of general formula (I) in the composition of the petroleum hydrocarbon can be advantageously determined by laser ionization coupled with mass spectrometry or by laser ionization coupled with ion mobility spectrometry.