(1,2,3-triphenylphosphirane)pentacarbonylchromium | 88000-35-5

• 英文名称: (1,2,3-triphenylphosphirane)pentacarbonylchromium
• CAS: 88000-35-5
• 化学式: C₂₅H₁₇CrO₅P
• 分子量: 480.377
• InChiKey: ONECMLCKRZWOPU-YIGNQREJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
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• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  反式-1,2-二苯乙烯 、 在 copper(l) chloride 作用下， 以 甲苯 为溶剂， 以22%的产率得到(1,2,3-triphenylphosphirane)pentacarbonylchromium
  参考文献：
  名称：

  末端次膦配合物对烯烃的类似卡宾的行为。全新获得膦环的途径

  摘要：

  DOI：

  10.1021/om00081a021

文献信息

• 3<i>H</i>-Benzophosphepine Complexes:  Versatile Phosphinidene Precursors
  作者：Mark L. G. Borst、Rosa E. Bulo、Danièle J. Gibney、Yonathan Alem、Frans J. J. de Kanter、Andreas W. Ehlers、Marius Schakel、Martin Lutz、Anthony L. Spek、Koop Lammertsma

  DOI：10.1021/ja054885w

  日期：2005.12.1

  The synthesis of a variety of benzophosphepine complexes [R = Ph, t-Bu, Me; MLn = W(CO)(5), Mo(CO)(5), Cr(CO)(5), Mn(CO)(2)Cp] by two successive hydrophosphinations of 1,2-diethynylbenzene is discussed in detail. The first hydrophosphination step proceeds at ambient temperature without additional promoters, and subsequent addition of base allows full conversion to benzophosphepines. Novel benzeno-1,4-diphosphinanes were isolated as side products. The benzophosphepine complexes themselves serve as convenient phosphinidene precursors at elevated, substituent-dependent temperatures (> 55 degrees C). Kinetic and computational analyses support the proposal that the phosphepine-phosphanorcaradiene isomerization is the rate-determining step. In the absence of substrate, addition of the transient phosphinidene to another benzophosphepine molecule is observed, and addition to 1,2-diethynylbenzene furnishes a delicate bidentate diphosphirene complex.