(Z)-methyl 2-bromo-3-(p-bromophenyl)propenoate | 140473-85-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: (Z)-methyl 2-bromo-3-(p-bromophenyl)propenoate
• 英文别名: (Z)-2-bromo-3-(4-bromophenyl)acrylic acid methyl ester；4.α-dibromo-trans-cinnamic acid methyl ester；4.α-Dibrom-trans-zimtsaeure-methylester；methyl (Z)-2-bromo-3-(4-bromophenyl)prop-2-enoate
• CAS: 140473-85-4
• 化学式: C₁₀H₈Br₂O₂
• 分子量: 319.98
• InChiKey: ZDVQODLNDMUOLV-TWGQIWQCSA-N

物化性质

• 沸点：
  350.6±27.0 °C(Predicted)
• 密度：
  1.781±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  甲醇 、 (Z)-2-bromo-3-(4-bromophenyl)propenoic acid 在 盐酸 作用下， 生成 (Z)-methyl 2-bromo-3-(p-bromophenyl)propenoate
  参考文献：
  名称：

  Blood coagulation and fibrinolysis in patients with hyperthyroidism

  摘要：

  Several papers concerning abnormalities of blood coagulation and fibrinolysis during hyperthyroidism, have been published. Increased von Willebrand Factor (vWF) activity and high fibrinogen levels have been reported. However, there is controversy concerning the presence of a hypercoagulable state in hyperthyroidism. We investigated various hemostatic parameters in 41 hyperthyroid patients and compared them to 20 euthyroid controls. Prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen, factors V, VII, VIII, IX and X activities, vWF, antithrombin III (AT 111), protein C, protein S, tissue plasminogen activator (t-PA) and tissue plasminogen activator inhibitor-1 (PAI-1), as well as common lipid variables, were measured. The relationships between serum thyroid hormones and these hemostatic parameters were examined. Compared with control subjects, fibrinogen, factor IX, vWF, AT III and PAI-1 were significantly increased in patients (p<0.05, p<0.0001, p<0.05, p<0.01 and p<0.0001; respectively), whereas factor X and t-PA were decreased (p<0.05). We showed that free T-4 (FT3) levels were correlated with factor VIII activity (r=0.35, p<0.05). FT4, FT3 and TSH did not correlate with fibrinogen, vWF, AT III, t-PA, or PAI-1. AT III was inversely correlated with factor Vil activity (r=-0.48, p<0.01). Protein C and S were correlated with vWF levels (r=0.58, p<0.0001; r=0.55, p<0.0001, respectively). Protein C was inversely correlated with t-PA (r=-0.39, p<0.01). There was a negative correlation between triglycerides, LDL-C and F X (r=-0.45, P<0.05; r=-64, p<0.01, respectively). Mean platelet volume (MPV) was correlated with anti-thyroid peroxidase (TPO) antibodies (in Graves' disease) and F IX activity (r=0.57, p<0.05 and r=0.39, p<0.05; respectively). We found important differences in the coagulatory/fibrinolytic parameters between the hyperthyroid patients and healthy controls. Hyperthyroid patients may experience vascular endothelial dysfunction and decreased fibrinolytic activity in blood. This endothelial activation may represent a situation with a higher thromboembolic potential. (C) 2002, Editrice Kurtis.

  DOI：

  10.1007/bf03344016

文献信息

• Titanium mediated olefination of aldehydes with α-haloacetates: an exceptionally stereoselective and general approach to (Z)-α-haloacrylates
  作者：John Kallikat Augustine、Agnes Bombrun、Srinivasa Venkatachaliah、Anandh Jothi

  DOI：10.1039/c3ob41592a

  日期：——

  An exceptionally stereoselective and general synthesis of (Z)-α-haloacrylates, ready to undergo various synthetic transformations, has been demonstrated from α-haloacetates and aldehydes in a one-pot manner via the titanium-enolate based asymmetric aldol condensation. Besides being an expedient synthetic procedure, the ready availability of diverse α-haloacetates, exceptional stereoselectivity, and high yields make the process a versatile transformation in organic synthesis. The potential of this method in up-scaling operations has been illustrated.

  展示了一种异常立体选择性和通用性合成（Z）-α-卤代丙烯酸酯的方法，该方法通过钛烯醇基催化的不对称 aldol 凝缩反应，采用 α-卤代乙酸酯和醛以一步法进行合成。这种合成方法不仅便捷，而且多样的 α-卤代乙酸酯的可得性、出色的立体选择性和高产率使得该过程在有机合成中具有多功能性。该方法在放大操作中的潜力也得到了展示。
• Hamed, E. A.; Sharaf, S. M.; El-Hegazy, Fatma M., Egyptian Journal of Chemistry, 1996, vol. 39, # 5, p. 455 - 464
  作者：Hamed, E. A.、Sharaf, S. M.、El-Hegazy, Fatma M.、Youssef, A. A.

  DOI：——

  日期：——