diethyl 1-hydroxy-1-(2-bromo)phenyl-ethylphosphonate | 1360147-06-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: diethyl 1-hydroxy-1-(2-bromo)phenyl-ethylphosphonate
• 英文别名: diethyl 1-hydroxy-1-(2-bromo)phenylethylphosphonate；diethyl 1-hydroxy-1-(2-bromophenyl)ethylphosphonate；1-(2-Bromophenyl)-1-diethoxyphosphorylethanol
• CAS: 1360147-06-3
• 化学式: C₁₂H₁₈BrO₄P
• 分子量: 337.15
• InChiKey: GKKZKWLOXJSGGU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  18
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2'-溴苯乙酮 、 亚磷酸二乙酯 在 {(μ-η5:η1):η1-2-[(2,6-Me2C6H3)NCH2](C4H3N)YN(SiMe3)2}2 作用下， 反应 0.33h， 以60%的产率得到diethyl 1-hydroxy-1-(2-bromo)phenyl-ethylphosphonate
  参考文献：
  名称：

  亚甲基连接的吡咯基稀土金属酰胺配合物催化醛和未活化酮的高效氢膦酰化

  摘要：

  通过甲硅烷基胺消除反应制备了一系列带有亚甲基连接的吡咯基-酰胺基配体的稀土金属酰胺配合物，在无溶剂条件下，液态底物在醛和未活化酮的氢膦酰化反应中显示出很高的催化活性。的治疗[（ME 3 Si）的2 N] 3 LN（μ-Cl）的锂（THF）3与2-（2,6--ME 2 ç 6 ħ 3 NHCH 2）C 4 H ^ 3 NH（1，1个当量）在甲苯，得到相应的式三价稀土金属酰胺{（μ-η 5：η 1）：η 1-2-[（2,6-Me 2 C 6 H 3）NCH 2 ]（C 4 H 3 N）LnN（SiMe 3）2 } 2 [Ln = Y（2），Nd（3），Sm（4），Dy（5），Yb（6）]，产量适中。所有化合物均通过光谱法和元素分析充分表征。钇配合物的特征还在于1 H NMR光谱分析。复合物的结构 2，3，4，和6由单晶X射线分析确定。配合物催化活性的研究表明，这些稀土金属酰胺配合物是醛和未活化

  DOI：

  10.1002/chem.201102207

文献信息

• Highly Effective Alkaline Earth Catalysts for the Sterically Governed Hydrophosphonylation of Aldehydes and Nonactivated Ketones
  作者：Bo Liu、Jean-François Carpentier、Yann Sarazin

  DOI：10.1002/chem.201201489

  日期：2012.10.15

  Down‐to‐earth catalysis: Heteroleptic and, more interestingly, homoleptic complexes of the large alkaline earth metals (calcium, strontium, and barium) constitute remarkably efficient catalysts for hydrophosphonylation reactions of aldehydes and nonactivated ketones (see scheme). Perfect chemoselectivities and unprecedented turnover frequencies (TOFs) are reported.

  脚踏实地的催化作用：大型碱土金属（钙，锶和钡）的杂合剂，更有趣的是，均合的配合物构成了醛和未活化酮的氢膦酰化反应的高效催化剂（参见方案）。完美的化学选择性和空前的周转频率（TOFs）报道。
• Lanthanide anilido complexes: synthesis, characterization, and use as highly efficient catalysts for hydrophosphonylation of aldehydes and unactivated ketones
  作者：Chengwei Liu、Qinqin Qian、Kun Nie、Yaorong Wang、Qi Shen、Dan Yuan、Yingming Yao

  DOI：10.1039/c4dt00522h

  日期：——

  Lanthanide anilido complexes stabilized by the 2,6-diisopropylanilido ligand have been synthesized and characterized, and their catalytic activity for hydrophosphonylation reaction was explored. A reaction of anhydrous LnCl3 with 5 equivalents of LiNHPh-iPr2-2,6 in THF generated the heterobimetallic lanthanide–lithium anilido complexes (2,6-iPr2PhNH)5LnLi2(THF)2 [Ln = Sm(1), Nd(2), Y(3)] in good isolated yields. These complexes are well characterized by elemental analysis, IR, NMR (for complex 3) and single-crystal structure determination. Complexes 1–3 are isostructural. In these complexes, the lanthanide metal ion is five-coordinated by five nitrogen atoms from five 2,6-diisopropylanilido ligands to form a distorted trigonal bipyramidal geometry. The lithium ion is coordinated by two nitrogen atoms from two 2,6-diisopropylanilido ligands, and one oxygen atom from a THF molecule. It was found that these simple lanthanide anilido complexes are highly efficient for catalyzing hydrophosphonylation reactions of various aldehydes and unactivated ketones to generate α-hydroxyphosphonates in good to excellent yields (up to 99%) within a short time (5 min for aldehydes, 20 min for ketones). Furthermore, the mechanism of hydrophosphonylation reactions has also been elucidated via1H NMR monitoring of reaction.

  稳定的2,6-二异丙基苯胺配体的镧系金属苯胺复合物已被合成和表征，并探讨了其在磷化氢化反应中的催化活性。无水LnCl3与5个等摩尔的LiNHPh-iPr2-2,6在THF中的反应生成了异质双金属镧系-锂苯胺复合物(2,6-iPr2PhNH)5LnLi2(THF)2 [Ln = Sm(1), Nd(2), Y(3)]，收率良好。这些复合物通过元素分析、红外光谱、核磁共振（对于复合物3）和单晶结构测定进行了良好的表征。复合物1-3是同构的。在这些复合物中，镧系金属离子由来自五个2,6-二异丙基苯胺配体的五个氮原子协调，形成四面体畸变的三角双锥几何结构。锂离子则由两个2,6-二异丙基苯胺配体中的两个氮原子和一个THF分子中的氧原子协调。研究发现，这些简单的镧系苯胺复合物在催化各种醛和未活化酮的磷化氢化反应中具有高效率，能够在短时间内（醛为5分钟，酮为20分钟）生成α-羟基磷酸酯，收率良好至优异（高达99%）。此外，磷化氢化反应的机制也通过氢核磁共振监测反应得到了阐明。
• <i>n</i>-BuLi as a Highly Efficient Precatalyst for Hydrophosphonylation of Aldehydes and Unactivated Ketones
  作者：Chengwei Liu、Yu Zhang、Qinqin Qian、Dan Yuan、Yingming Yao

  DOI：10.1021/ol5030713

  日期：2014.12.5

  as highly efficient precatalysts for the hydrophosphonylation reactions of aldehydes and unactivated ketones with dialkyl phosphite under mild conditions. For ketone substrates, a reversible reaction was observed, and the influence of catalyst loading and reaction temperature on the reaction equilibrium was studied in detail. Overall, the hydrophosphonylation reactions catalyzed by 0.1 mol % n-BuLi

  首次发现有机碱金属化合物可作为醛和未活化酮与亚磷酸二烷基酯在温和条件下进行氢膦酰化反应的高效预催化剂。对于酮类底物，观察到可逆反应，并详细研究了催化剂负载量和反应温度对反应平衡的影响。总体而言，由0.1 mol％n- BuLi催化的加氢羰基化反应可在5分钟内完成，适用于多种底物，并以高收率产生了一系列α-羟基膦酸酯。
• Synthesis and Characterization of Organolanthanide Complexes with a Calix[4]-pyrrolyl Ligand and Their Catalytic Activities toward Hydrophosphonylation of Aldehydes and Unactivated Ketones
  作者：Shuangliu Zhou、Hengyu Wang、Jian Ping、Shaowu Wang、Lijun Zhang、Xiancui Zhu、Yun Wei、Fenhua Wang、Zhijun Feng、Xiaoxia Gu、Song Yang、Hui Miao

  DOI：10.1021/om2008925

  日期：2012.3.12

  The alkali metal salt free dinuclear trivalent lanthanide amido complexes (eta(5):eta(1):eta(5):eta(1)-Et-8-calix[4]-pyrrolyl)LnN-(SiMe3)(2)}(2) (Ln = Nd (2), Sm (3), Gd (4)) were prepared through the silylamine elimination reactions of calix[4]-pyrrole [Et2C(C4H2NH)](4) (1) with 2 equiv of [(Me3Si)(2)N](3)Ln(mu-Cl)Li(THF)(3) (Ln = Nd, Sm, Gd) in toluene at 110 degrees C. The complexes were fully characterized by elemental, spectroscopic, and single-crystal X-ray analyses. Studies on the catalytic activity of the new lanthanide amido complexes revealed that these complexes can be used as efficient catalysts for hydrophosphonylation of aldehydes and unactivated ketones, affording the products in high yields by employing a low catalyst loading (0.1 mol %) at room temperature in a short time (20 min). Noteworthy is that it is the first application of calix[4]-pyrrolyl-supported lanthanide amides as catalysts to catalyze the hydrophosphonylation of aldehydes and unactivated ketones under mild conditions.