tetrabutylammonium methoxysquarate | 239473-90-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: tetrabutylammonium methoxysquarate
• 英文别名: 2-methoxy-3,4-dioxocyclobuten-1-olate;tetrabutylazanium
• CAS: 239473-90-6
• 化学式: C₅H₃O₄*C₁₆H₃₆N
• 分子量: 369.545
• InChiKey: MTDZXVVHBVXBKD-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  3.37
• 重原子数：
  26
• 可旋转键数：
  13
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.81
• 拓扑面积：
  66.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  cobalt(II) nitrate hexahydrate 、 tetrabutylammonium methoxysquarate 以 乙腈 为溶剂， 以22%的产率得到[Co(1-methoxycyclobutenedionate(1-))2(H2O)4]
  参考文献：
  名称：

  Hosein, Hazel-Ann; Jaggernauth, Hema; Alleyne, Bert D., Inorganic Chemistry, 1999, vol. 38, # 16, p. 3716 - 3720

  摘要：

  DOI：

文献信息

• Synthesis of ruthenium(II) monosubstituted squarates: 1. Procedural considerations
  作者：Patrice M.T. Piggot、Lincoln A. Hall、Andrew J.P. White、David J. Williams

  DOI：10.1016/s0020-1693(03)00424-9

  日期：2004.1

  Attempted syntheses of ruthenium(II) monosubstituted squarate complexes in acetonitrile using cis-[RuCl2(dmso)(4)] and anisole-, methoxy-, methyl- and diphenylamino-squarate ligands, respectively, resulted in the formation in each case of the monomer cis, fac-Ru(CH3CN)Cl-2(dmso)(3) (1) with the ruthenium atom in a distorted octahedral environment. A second crop of crystals harvested from the reaction with the methoxysquarate ligand was identified as the oxalato-bridged dimer [cis-(CH3CN)(Cl)(dmso)(2)Ru}(2)(mu-C2O4)] (2). When cis-[RuCl2(dmso)(4)] and methylsquarate were reacted in aqueous solution instead of acetonitrile, the dimer [(Cl)(dmso)(3)Ru 2(mu-C2O4)] (3) was produced. The dimers 2 and 3 are formed from oxidation/ring opening of the methoxy- and methyl-squarate ligands, respectively. Use of the salts of these ligands instead of their non-ionised forms under different reaction conditions, afforded [Na] fac-[RuCl3(dmso)(3)] (4) and [(C4H9)(4)N](2)[(C4O4)(C4H2O4)(2)] (7), respectively, which were shown to be products of competing reactions. The information acquired from these failed attempts has provided the basis for the development of a strategy to overcome these problems and lead to a successful synthetic route to ruthenium(II) monosubstituted squarates. (C) 2003 Elsevier B.V. All rights reserved.