bis(3,3-dimethylbut-1-ynyl)arsorylbenzene | 144792-43-8

• 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: bis(3,3-dimethylbut-1-ynyl)arsorylbenzene
• CAS: 144792-43-8
• 化学式: C₁₈H₂₃AsO
• 分子量: 330.302
• InChiKey: VYHGHSGIZXFYDG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.45
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  {trans-Pt(H)(PEt3)2(THF)}{SbF6} 、 bis(3,3-dimethylbut-1-ynyl)arsorylbenzene 在 pyridine 作用下， 以 二氯甲烷 为溶剂， 以15%的产率得到trans-{Pt(η1-CCCMe3)(η1-(C5H5NCC(H)CMe3))(PEt3)2}(SbF6)
  参考文献：
  名称：

  Reactions of di- or trialkynylphosphine and di- or trialkynylarsine oxides with a cationic platinum-hydride complex: mechanistic features

  摘要：

  The reaction between a cationic Pt-H complex and O=P(=CMe3)3 was followed by P-31 NMR at three temperatures. Addition of the Pt-H bond to an alkynyl substituent to give a PtP-mu-alkenylidene complex is observed with subsequent formation of the expected 1,2-dihydrophosphete product. A similar reaction with O=AsPh(C=CCMe3)2 occurs with unexpected overall transfer of both alkynyl substituents from the As atom to the Pt ion, giving eventually a cationic Pt(II)(eta1-alkynyl)(eta1-alkenyl) product. The X-ray structure of this latter complex has been determined: P1BAR; Z = 2; a = 11.391 (4) angstrom, b = 16.040 (4) angstrom, c = 10.801 (1) angstrom; alpha = 100.13 (1)-degrees, beta = 100.71 (2)-degrees, gamma = 80.23 (2)0. A mechanism of formation of 1,2-dihydrophosphete or -arsete complexes involving Pt-H addition and subsequent alkynyl transmetalation is postulated.

  DOI：

  10.1021/om00060a013