2-diphenylphosphinomethylene-1,3,4,5-tetramethylimidazoline | 442690-71-3

• 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: 2-diphenylphosphinomethylene-1,3,4,5-tetramethylimidazoline
• 英文别名: 2-Diphenylphosphinomethylen-1,3,4,5-tetramethylimidazolin
• CAS: 442690-71-3
• 化学式: C₂₀H₂₃N₂P
• 分子量: 322.39
• InChiKey: QZFDJGGLUQASRA-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  tetrafluoroboric acid 、 2-diphenylphosphinomethylene-1,3,4,5-tetramethylimidazoline 以 乙醚 为溶剂， 以98%的产率得到2-diphenylphosphinomethyl-1,3,4,5-tetramethylimidazolium tetrafluoroborate
  参考文献：
  名称：

  Synthese und Deprotonierung eines Phosphinomethylimidazoliumsalzes. Zur Delokalisierung der π-Elektronen in Aminovinylphosphanen [1]

  摘要：

  The ylidic olefin 1,3,4 5-tetramethyl-2-methyleneimidazoline (1, Im=CH2) reacts with chlorodiphenylphosphane to give the phosphane salt [(Im-CH2)PPh2]Cl (6) from which the vinylphosphane Im=CHPPh2 (8) is obtained by deprotonation. 8 reacts with HBF4 etherate to give the tetrafluoroborate salt [(Im-CH2)=PPh2]BF4 (7). The crystal structures of 7 and 8 are determined and discussed. In 8, pi-electron delocalisation is indicated both by structural data and temperature dependent n.m.r. spectroscopy.

  DOI：

  10.1002/1521-3749(200205)628:4<896::aid-zaac896>3.0.co;2-v