(R)-(-)-(methyl)(phenyl)(i-propyl)phosphine/borane complex | 1256150-29-4

• 英文名称: (R)-(-)-(methyl)(phenyl)(i-propyl)phosphine/borane complex
• 英文别名: (R)-(-)-methyl-phenyl-i-propyl-phosphine borane；(R)-(-)-methylphenyl-i-propylphosphine borane
• CAS: 1256150-29-4；1256335-08-6
• 化学式: C₁₀H₁₈BP
• 分子量: 180.038
• InChiKey: VITUYRRUARWFSB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为反应物：
  描述：

  (R)-(-)-(methyl)(phenyl)(i-propyl)phosphine/borane complex 在 三乙烯二胺 作用下， 以 甲苯 为溶剂， 生成 (R)-(+)-phenyl-isopropylmethylphosphin
  参考文献：
  名称：

  P-手性膦的对映发散合成

  摘要：

  描述了使用麻黄碱方法和膦硼烷化学对 P-chirogenic 单和二膦的对映发散合成的几种方法。首先，当在合成途径中改变有机锂试剂的添加顺序时，可以从由 (+)-麻黄碱制备的相同 oxazaphospholidine 硼烷络合物开始获得叔膦的两种对映异构体。第二种方法基于氯膦硼烷，它与有机锂试剂反应，得到相应的具有反转构型的膦。在氯膦硼烷与叔丁基锂试剂反应的情况下，发生金属-卤素交换以提供相应的磷化物硼烷并保留构型。磷化硼烷与卤代烷反应生成相同的膦，但具有相反的构型。另一种方法取决于从 (-)-麻黄碱中非对映选择性制备起始 oxazaphospholidine 硼烷复合物，根据情况，这导致生成膦的一种或另一种对映异构体。最后，(R,R)- 和 (S,S)-1,2-双（甲基苯基膦基）乙烷的合成也使用 P-chirogenic 二亚膦酸二硼烷的两种对映异构体进行了证明，同时允许引入烷基-或磷原

  DOI：

  10.1016/j.crci.2010.06.001
• 作为产物：
  描述：

  (2R,4S,5R)-(+)-3,4-dimethyl-2,5-diphenyl-1,3,2-oxazaphospholidine-2-borane 在 盐酸 作用下， 生成 (R)-(-)-(methyl)(phenyl)(i-propyl)phosphine/borane complex
  参考文献：
  名称：

  Luminescent P-Chirogenic Copper Clusters

  摘要：

  P-chirogenic dusters of the cubanes [Cu4I4L4] (L = chiral phosphine) were prepared from (+)- and (-)-ephedrine with L = (S)- or (R)-(R)(Ph)(i-Pr)P (with R = CH3 (seven steps) or C17H35 (10 steps)) with e.e. up to 96%. The X-ray structure of [Cu4I4((R)-(CH3)(Ph)(i-Pr)P)(4)] confirmed the cubane structure with average Cu center dot center dot center dot Cu and Cu center dot center dot center dot I distances of 2.954 and 2.696 angstrom, respectively. The cubane structure of the corresponding [Cu4I4((S)-(CH3)(Ph)(i-Pr)P)(4)] was established by the comparison of the X-ray powder diffraction patterns, and the opposite optical activity of the (S)- and (R)-ligand-containing clusters was confirmed by circular dichroism spectroscopy. Small-angle X-ray scattering patterns of one duster bearing a C17H35 chain exhibit a weak signal at 2 theta similar to 2.8 degrees (d similar to 31.6 angstrom), indicating some molecular ordering in the liquid state. The emission spectra exhibit two emission bands, both associated with triplet excited states. These two bands are assigned as follows: the high energy emission is due to a halide-to-ligand charge transfer, XLCT, state mixed with LXCT (ligand-to-halide-charge-transfer). The low energy band is assigned to a cluster-centered excited state. Both emissions are found to be thermochromic with the relative intensity changing between 77 and 298 K for the clusters in methylcyclohexane solution. Several differences are observed in the photophysical parameters, emission quantum yields and lifetimes for R = CH3 and C17H35. The measurements of the polarization along the emission indicate that the emission is depolarized, consistent with an approximate tetrahedral geometry of the chromophores.

  DOI：

  10.1021/ic400498j

文献信息

• Organometallic Oligomers Based on Bis(arylacetylide)bis(P-chirogenic phosphine)platinum(II) Complexes: Synthesis and Photonic Properties
  作者：Antony Lapprand、Naïma Khiri、Daniel Fortin、Sylvain Jugé、Pierre D. Harvey

  DOI：10.1021/ic301829x

  日期：2013.3.4

  A series of P-chirogenic oligomers of the type (-CEC aryl-C C-PtL2-)(n) [L = (R)- and (S)-P(Ph)(iPr)(C17H35); aryl = 1,4-benzene, 2,1,3-benzothiadiazole] along the corresponding achiral analogues (L = PBu3) and model complexes PhC CPtL2C CPh were prepared from the ephedrine strategy and were fully characterized [H-1, P-31 NMR; IR; small-angle X-ray scattering (SAXS); gel permeation chromatography (GPC); thermal gravimetric analysis (TGA); circular dichroism, UV-vis, and luminescence spectroscopy; photophysics, and degree of anisotropy measurements]. From the CD measurements, the chiral environment of the phosphine ligands is modestly felt by the aryl moieties. Concurrently, the TGA shows that the P(C17H35)(Ph)(i-Pr)-containing materials are more stable than those containing the shorter chain ligand PBu3, and exhibits red-shifted absorption and emission bands compared to those including the PBu3 ligands. The presence of the long chain on the phosphorus atoms does not greatly alter the photophysical parameters, notably the emission lifetimes, and fast triplet energy transfer terminal* --> central unit has been deduced from the absence of luminescence arising from the terminal units.