| 1346127-41-0

• CAS: 1346127-41-0
• 化学式: C₂₂H₂₈BCl₃N₉O₄PW
• 分子量: 814.516
• InChiKey: RDMUBCBJDSASGT-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  [W(NO)((tris-pyrazolyl)borate)(trimethylphosphine)(3,4-η2-N-(1-(pyridin-1(2H)-yl)ethanone))] 、 三氯乙酰异氰酸酯 以 氘代氯仿 为溶剂， 生成
  参考文献：
  名称：

  [4 + 2] Cyclocondensation Reactions of Tungsten–Dihydropyridine Complexes and the Generation of Tri- and Tetrasubstituted Piperidines

  摘要：

  A new method for the preparation of functionalized piperidines is described in which various dihydropyridine (DHP) complexes of {TpW(NO)(PMe3)} that are derived from pyridine-borane undergo [4 + 2] cyclocondensation with enones, enals, nitrosobenzene, and several isocyanates to form [2.2.2] bicyclic species. In several cases the diazabicyclooctene products derived from DHP complexes and isocyanates can be further elaborated into novel syn-2,5-disubstituted and 2,3,6-trisubstituted piperidinamides.

  DOI：

  10.1021/ja2075086