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(S)-(chloro)(m-xylyl)phosphine/borane complex | 1256150-26-1

中文名称
——
中文别名
——
英文名称
(S)-(chloro)(m-xylyl)phosphine/borane complex
英文别名
(S)-chlorophenyl-m-xylylphosphine borane
(S)-(chloro)(m-xylyl)phosphine/borane complex化学式
CAS
1256150-26-1
化学式
C14H17BClP
mdl
——
分子量
262.527
InChiKey
GFLIZPFELNGJEJ-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:
    (S)-(chloro)(m-xylyl)phosphine/borane complex叔丁基锂 、 sodium hydride 、 三乙胺 作用下, 以 四氢呋喃二氯甲烷正戊烷 为溶剂, 反应 3.0h, 生成 (R)-[2-(methanesulfonatomethyl)phenyl]-(3,5-dimethylphenyl)-phenylphosphine-borane
    参考文献:
    名称:
    Modular P-Chirogenic Phosphine-Sulfide Ligands: Clear Evidence for Both Electronic Effect and P-Chirality Driving Enantioselectivity in Palladium-Catalyzed Allylations
    摘要:
    Using the ephedrine methodology, modular stereo-selective syntheses of a new class of P-chirogenic phosphines bearing a sulfur-chelating arm (P*,S-hybrid ligand) are described. A first series of syntheses based on a Fries-like rearrangement of P-chirogenic phosphinite-boranes, which are prepared from 2-bromobenzyl or 2-bromophenethyl alcohol and are mediated by metal halide exchange, have been performed. This rearrangement affords phosphine-boranes stereospecifically with an o-hydroxy-alkylphenyl substituent. The latter residue is subsequently converted into a sulfur-containing group. In a second series, the stereoselective syntheses were achieved according to a new strategy involving a reaction of a thiophenyllithiurn reagent with a P-chirogenic phosphinite. The X-ray structures of the P*,S ligands and their palladium complexes allow us to address the absolute configuration at both the phosphorus and sulfur centers. The P*,S ligands were used in palladium-catalyzed allylic alkylations, as tests, affording asymmetric inductions up to 96% ee. Computer modeling corroborates the regio- and enantioselectivity of the Pd-catalyzed allylations and the low influence of the substituent carried by the sulfur moiety, particularly when the chelate forms a six-membered ring with the metal.
    DOI:
    10.1021/acs.organomet.5b00585
  • 作为产物:
    描述:
    (2SP,4R,5S)-(-)-3,4-dimethyl-2,5-diphenyl-1,3,2-oxazaphospholidine borane 在 盐酸仲丁基锂 作用下, 以 环己烷甲苯 为溶剂, 反应 1.0h, 生成 (S)-(chloro)(m-xylyl)phosphine/borane complex
    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
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文献信息

  • The first unpaired electron placed inside a C3-symmetry P-chirogenic cluster
    作者:Christine Salomon、Sophie Dal Molin、Daniel Fortin、Yves Mugnier、René T. Boeré、Sylvain Jugé、Pierre D. Harvey
    DOI:10.1039/c0dt00542h
    日期:——
    The Pd3(dppm*)3(CO)n+ enantiomers (n = 2 (2), 1 (3)) were prepared either from (R,R)- or (S,S)-P-chirogenic bis(phenyl-m-xylylphosphino)methane (dppm*; 1) and Pd(OAc)2 in the presence of CF3CO2H, CO and water (n = 2), and then by reductive electrolysis (n = 1). The stable enantiomeric [Pd3((S,S)-dppm*)3(CO)]+˙ (3), is the first C3-symmetry radical-cation M-M bonded cluster, therefore the odd electron
    3(dppm *)3(CO)n +对映体(n = 2(2),1(3))由(R,R)-或(小号,小号) - P -chirogenic双(苯基-米-xylylphosphino)甲烷 (dppm *; 1)和(OAc)2在CF 3 CO 2 H存在下一氧化碳(n= 2),然后通过还原电解(n= 1)。稳定的对映体[Pd 3((S,S)-dppm *)3(CO)]+ ˙( 3)是第一个C 3对称自由基阳离子毫米键团,因此奇数电子在此对称范围内离域到Pd 3框架上。Pd 3(dppm *)3(CO)2+簇(2)的两个对映异构体的圆二色性(CD)以及Pd 3((S,S)-dppm *)3(CO)+ ˙顺磁性化合物(3,g = 2.041)。通过显示三个不同的超精细耦合值的EPR信号的超精细分裂,非手性簇对称性降低的证据也很明显。(31 P)= 83.9×10 -4厘米-1,3×阿(31
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