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1-diethylphosphino-2-methyl-1,2-dicarba-closo-dodecaborane(12) | 172537-21-2

中文名称
——
中文别名
——
英文名称
1-diethylphosphino-2-methyl-1,2-dicarba-closo-dodecaborane(12)
英文别名
diethyl[1-(2-methyl-1,2-dicarba-closo-dodecaborane)]phosphine;1-diethylphosphino-2-methyl-1,2-dicarba-closo-dodecaborane;1-PEt2-2-Me-1,2-closo-C2B10H10
1-diethylphosphino-2-methyl-1,2-dicarba-closo-dodecaborane(12)化学式
CAS
172537-21-2
化学式
C7H23B10P
mdl
——
分子量
246.343
InChiKey
XKBCVGBCHYSBMC-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

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

反应信息

  • 作为反应物:
    描述:
    1-diethylphosphino-2-methyl-1,2-dicarba-closo-dodecaborane(12) 、 tert-butylammonium hexafluorophosphate(V) 在 piperidine 作用下, 以 乙醇 为溶剂, 以25%的产率得到tetrabutylammonium 7-diisopropylphosphino-8-methyl-7,8-dicarba-nido-undecaborate(1-)
    参考文献:
    名称:
    程序的1,2-降解(PR 2)2 -1,2-dicarba-闭合碳-dodecaborane(12)和1-(PR 2)-2-R'-1,2- dicarba-闭合碳-dodecaborane( 12)
    摘要:
    带有衍生自7,8-二氨基甲酰基-未脱键单元的阴离子基团的单膦和双膦,例如[7-PR 2 -8-Me-7,8-C 2 B 9 H 10 ] -和[7,8- (PR 2)2 -7,8--C 2乙9 ħ 10 ] -(R =苯基,乙基,异丙基或乙氧基),从合成的闭合碳-carborane前体1-PR 2 -2-ME-1,2- C 2 B 10 H 10和1,2-(PR 2)2 -1,2-C 2 B 10H 10。通常,将C Ç在P键闭合碳物种是非常敏感的降解反应,产生Ç Ç P裂解和产生的[7,8-C 2乙9 ħ 10 ] 2 -阴离子。保留了良好的C降解的条件Ç P发现是甲苯与1:50碳硼烷对pipeeridine比和乙醇的碳硼烷1:10至哌啶比率。所述芳基膦保持Ç Ç P键最好与产生最高的产率。亚磷酸盐还保留了C cP键,但磷变成正离子并产生两性离子物质。烷基膦是中间的,取决于-PR
    DOI:
    10.1016/0022-328x(95)05558-7
  • 作为产物:
    描述:
    1-methyl-ortho-carborane氯化二乙基磷 在 BuLi 作用下, 以 乙醚正己烷 为溶剂, 以77%的产率得到1-diethylphosphino-2-methyl-1,2-dicarba-closo-dodecaborane(12)
    参考文献:
    名称:
    程序的1,2-降解(PR 2)2 -1,2-dicarba-闭合碳-dodecaborane(12)和1-(PR 2)-2-R'-1,2- dicarba-闭合碳-dodecaborane( 12)
    摘要:
    带有衍生自7,8-二氨基甲酰基-未脱键单元的阴离子基团的单膦和双膦,例如[7-PR 2 -8-Me-7,8-C 2 B 9 H 10 ] -和[7,8- (PR 2)2 -7,8--C 2乙9 ħ 10 ] -(R =苯基,乙基,异丙基或乙氧基),从合成的闭合碳-carborane前体1-PR 2 -2-ME-1,2- C 2 B 10 H 10和1,2-(PR 2)2 -1,2-C 2 B 10H 10。通常,将C Ç在P键闭合碳物种是非常敏感的降解反应,产生Ç Ç P裂解和产生的[7,8-C 2乙9 ħ 10 ] 2 -阴离子。保留了良好的C降解的条件Ç P发现是甲苯与1:50碳硼烷对pipeeridine比和乙醇的碳硼烷1:10至哌啶比率。所述芳基膦保持Ç Ç P键最好与产生最高的产率。亚磷酸盐还保留了C cP键,但磷变成正离子并产生两性离子物质。烷基膦是中间的,取决于-PR
    DOI:
    10.1016/0022-328x(95)05558-7
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文献信息

  • Influence of the solvent and R groups on the structure of (carboranyl)R2PI2 compounds in solution. Crystal structure of the first iodophosphonium salt incorporating the anion [7,8-nido-C2B9H10]−
    作者:Rosario Núñez、Francesc Teixidor、Raikko Kivekäs、Reijo Sillanpää、Clara Viñas
    DOI:10.1039/b716217k
    日期:——
    The influence of the electron-donor or electron-acceptor capacity of the R groups (R = iPr, Ph, Et) and the solvent on the molecular geometry in solution of adducts of carboranylphosphanes [(carboranyl)iPr2P, (carboranyl)Ph2P and (carboranyl)Et2P] with I2 in 1 : 1 ratios, has been studied in detail by 31P1H} and 11B1H} NMR spectroscopies. The more electron-accepting Ph groups make the (carboranyl)Ph2P less nucleophilic, thus stabilizing the I2 encapsulated neutral biscarboranylphosphane–diiodine adducts in solution, such as (carboranyl)Ph2P⋯I–I⋯PPh2(carboranyl), generating P⋯I–I⋯P motifs. Even in a polar solvent, such as EtOH, the arrangement is preserved. The expected basicity of these carboranylphosphanes is: (carboranyl)iPr2P > (carboranyl)Et2P > (carboranyl)Ph2P. Thus, the comparatively higher basicity of (carboranyl)Et2Pvs.(carboranyl)Ph2P facilitates a higher transfer of electron density to the I2σ*, generating the ionic species, [(carboranyl)Et2PI]+I−, even in low polar solvents, such as CH2Cl2 and toluene, with no degradation of the cluster. However, in EtOH, the formation of the anionic [7,8-nido-C2B9H10]−cluster takes place by removal of one boron atom from the closocluster. The basicity of (carboranyl)iPr2P should be the highest, superior to (carboranyl)Et2P. This is observed in the reaction of these carboranylphosphanes with I2 in EtOH. Whereas the formation of P four-coordinated molecular “spoke” charge-transfer complexes, (carboranyl)iPr2P–I–I, are suggested for (carboranyl)iPr2P in low polarity solvents, ionic species are formed in ethanolic solutions, which deboronate in a few days, faster than (carboranyl)Et2P, to yield the zwitterionic species. This is attributed to the higher basicity of (carboranyl)iPr2Pvs.(carboranyl)Et2P. The X-ray crystal structure of [7-PIiPr2-8-Ph-7,8-nido-C2B9H10], 2c, obtained from the reaction of 1-PiPr2-2-Ph-closo-1,2-closo-C2B10H10 with I2 in EtOH, confirms the formation of the zwitterion. These results prove that minor changes in the nature of the R substituents on the P atom in carboranylphosphanes, along with the solvent in which the reaction takes place, produce major alterations in the geometry of the (carboranyl)R2P–I–I species in solution, and in their possible further reactivity.
    R组(R = iPr, Ph, Et)以及溶剂对羧基氢化膦类化合物[(carboranyl)iPr2P, (carboranyl)Ph2P 和 (carboranyl)Et2P]与 I2 以 1:1 比例形成的加合物在溶液中的分子几何形状的影响,已通过 31P1H} 和 11B1H} NMR 光谱法进行了详细研究。更具电子接受能力的 Ph 取代基使得 (carboranyl)Ph2P 的亲核性降低,从而在溶液中稳定了包裹 I2 的中性双羧基氢化膦-二加合物,例如 (carboranyl)Ph2P⁻I–I⁻PPh2(carboranyl),生成 P⁻I–I⁻P 结构。即使在极性溶剂(如乙醇)中,这一结构依然保持。预计这些羧基氢化膦的碱性顺序为: (carboranyl)iPr2P > (carboranyl)Et2P > (carboranyl)Ph2P。因此,相较于 (carboranyl)Ph2P,(carboranyl)Et2P 较高的碱性促进了电子密度向 I2 σ* 的转移,生成离子物种 [(carboranyl)Et2PI]+I⁻,即使在低极性溶剂如 CH2Cl2甲苯中,也不会导致簇的降解。然而,在乙醇中,通过去除一个原子,形成阴离子 [7,8-nido-C2B9H10]⁻ 簇。(carboranyl)iPr2P 的碱性应该是最高的,优于 (carboranyl)Et2P。这在这些羧基氢化膦与 I2 在乙醇中的反应中得到了验证。而在低极性溶剂中,建议 (carboranyl)iPr2P 形成四配位的分子“辐条”电荷转移复合物 (carboranyl)iPr2P–I–I,但在乙醇溶液中形成离子物种,这些物种会在几天内去,比 (carboranyl)Et2P 更快,生成双性离子。这归因于 (carboranyl)iPr2P 较高的碱性。通过与 I2 在乙醇中反应获得的 [7-PIiPr2-8-Ph-7,8-nido-C2B9H10],2c 的 X 射线晶体结构确认了双性离子的形成。这些结果证明,羧基氢化膦中 P 原子上 R 替代基性质的微小变化,加上反应发生的溶剂,会对 (carboranyl)R2P–I–I 物种在溶液中的几何形状以及其可能的后续反应性产生重大影响。
  • Phosphine–boranes incorporating the carborane cluster
    作者:Rosario Núñez、Clara Viñas、Francesc Teixidor、Reijo Sillanpää、Raikko Kivekäs
    DOI:10.1016/s0022-328x(02)01326-8
    日期:2002.9
    the nido-carboranylmonophosphines react with ethanol to give the tertiary phosphonium salts and are readily oxidized by air in solution. They readily react with transition metals to form the corresponding metallacarboranes. To learn more of the distinct behavior of the closo-and nido-carboranylmonophosphines, the reaction of some of them with the BH3·THF Lewis acid has been carried out. In this communication
    closo-carboranyl monophosphines的高稳定性和低碱性和亲核性归因于closo簇的吸电子特性。相反,Nido簇具有电子给体特征,其在原子上诱导高电子密度,从而增加了这些配体的碱性和亲核性。以这种方式,N-碳硼烷基单膦酸酯与乙醇反应生成叔phospho盐,并很容易在溶液中被空气氧化。它们容易与过渡属反应形成相应的属碳硼烷。要了解更多的不同的行为closo-和巢-羰基单膦,其中一些与BH 3 ·THF路易斯酸进行了反应。在本次交流中,我们报道了closo-和nido-碳硼烷基单膦酸酯与BH 3 ·THF的反应,导致新的膦-硼烷加合物的形成。就N-碳硼烷基单膦而言,无论R和R'基团的性质如何,它们都表现出相似的行为。然而,已证明代-碳烷基单膦的碱性较低,并且仅其中之一已能够形成相应的膦-硼烷加合物。[NBu 4 ] + [7-P i的晶体结构PR 2 ·BH 3
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