| 200439-87-8

• CAS: 200439-87-8
• 化学式: C₁₂H₁₁NO₅W
• 分子量: 440.017
• InChiKey: XJYNWMBYVISAPW-LCEMLUOZSA-N

反应信息

• 作为产物：
  描述：

  pentacarbonyl (ethoxy)methyl carbenetungsten(0) 、 、 以 乙醚 为溶剂， 以4%的产率得到
  参考文献：
  名称：

  Formation and Selective Trapping of 2,5-Dihydropyridine and Its Isopropylidene Derivative by Tungsten(0) Alkylidene Complexes. X-ray Structure of the 5-Isopropylidene-2,5-dihydropyridine Adduct

  摘要：

  A mixture of 1,2- and 2,5-dihydropyridines and 5-isopropylidene-2,5-dihydropyridine, obtained from 1-(methoxycarbonyl)-1,2-dihydropyridine and methyllithium followed by protonation, reacts with a series of pentacarbonyl tungsten(0) alkoxycarbene complexes to afford, besides the expected pyridinium ylide complexes 7, the 2,5-dihydropyridinium ylide complexes 6 together with the 5-isopropylidene-2,5-dihydropyridinium ylide complexes 5, which could be separated and fully characterized by X-ray analysis.

  DOI：

  10.1021/om9708079