SmI3(tetrahydrofuran)3 | 122449-52-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 金属杂环化合物
• 英文名称: SmI3(tetrahydrofuran)3
• 英文别名: Oxolane;triiodosamarium
• CAS: 122449-52-9
• 化学式: C₁₂H₂₄I₃O₃Sm
• 分子量: 747.394
• InChiKey: UTZPMSCEZIQCMQ-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  5.05
• 重原子数：
  19
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  S-1,1'-联-2-萘酚 、 SmI3(tetrahydrofuran)3 在 potassium hydride 作用下， 以 四氢呋喃 为溶剂， 以81%的产率得到[(R)-1,1'-(bis-2,2'-naphthoxide)]-iodosamarium-bis-tetrahydrofurane
  参考文献：
  名称：

  (R)-bis-Binaphthoxy iodo lanthanides as catalysts for Diels–Alder reactions

  摘要：

  [(R)-1,1'bi-2,2'-Naphthoxy]LnI(THF)(2) (Ln: Yb, Sm, La) 5 have been prepared by reaction of the bispotassium salt. of (R)-binaphthol with lanthanide triiodides, and characterized. They are active catalysts for Diels-Alder reactions although with low asymmetric inductions. The lanthanum iodo bisbinaphthoxide gives a slightly higher enantiomeric excess than the two other complexes. (C) 2003 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s1381-1169(03)00092-x
• 作为产物：
  描述：

  四氢呋喃 、 samarium diiodide 、 碘 以 四氢呋喃 为溶剂， 生成 SmI3(tetrahydrofuran)3
  参考文献：
  名称：

  (R)-bis-Binaphthoxy iodo lanthanides as catalysts for Diels–Alder reactions

  摘要：

  [(R)-1,1'bi-2,2'-Naphthoxy]LnI(THF)(2) (Ln: Yb, Sm, La) 5 have been prepared by reaction of the bispotassium salt. of (R)-binaphthol with lanthanide triiodides, and characterized. They are active catalysts for Diels-Alder reactions although with low asymmetric inductions. The lanthanum iodo bisbinaphthoxide gives a slightly higher enantiomeric excess than the two other complexes. (C) 2003 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s1381-1169(03)00092-x
• 作为试剂：
  描述：

  1-甲氧基-1-(三甲基甲硅氧基)-2-甲基-1-丙烯 、 环己酮 在 SmI3(tetrahydrofuran)3 作用下， 以 二氯甲烷 为溶剂， 反应 0.17h， 以100%的产率得到1-环己烯氧基三甲基硅烷
  参考文献：
  名称：

  镧系碘化物催化的Mukaiyama Aldol和Michael反应

  摘要：

  二碘化is是一种有效的催化剂前体，它可使各种羰基化合物与乙烯酮甲硅烷基缩醛或环氧乙烷之间形成缩合产物。对于α，β-不饱和羰基化合物，根据底物的结构观察到1，2-或1，4-加成。通过选择性迈克尔加成，α，β-不饱和酮可生成环氧乙烷。醛醇缩合物被分离为甲硅烷基醚。讨论了反应机理。

  DOI：

  10.1016/s0040-4020(98)00791-1

文献信息

• Divalent Lanthanide Chemistry: Three Synthetic Routes to Samarium(II) and Ytterbium(II) Bis(phosphido) Species Including the Structural Characterization of Yb[PPh2]2(thf)4 and Sm[PPh2]2(N-MeIm)4
  作者：Gerd W. Rabe、Glenn P. A. Yap、Arnold L. Rheingold

  DOI：10.1021/ic00122a003

  日期：1995.8

  As part of a general investigation of low-valent lanthanide phosphido chemistry, the reactions of LnI(2)(thf)(2), LnI(3)(thf)(3), and Ln[N(SiMe(3))(2)](2)(thf)(2) (Ln = Yb, Sm) with KPPh(2) and Ph(2)PH in tetrahydrofuran have been examined. Two different types of lanthanide(II) phosphido complexes of the general formula Ln[PPh(2)](2)(L)(4) with either thf or N-methylimidazole as donor ligands L are reported. The molecular structures show the hexacoordinate lanthanide atoms in slightly distorted octahedral environments with two phosphido ligands in trans positions and slightly pyramidal environments around the phosphorus atoms.
• Iodo bis bistrimethylsilylamido lanthanides
  作者：Jacqueline Collin、Nicolas Giuseppone、Nada Jaber、Angela Domingos、Leonor Maria、Isabel Santos

  DOI：10.1016/s0022-328x(01)00793-8

  日期：2001.5

  Reactions of lanthanide triiodides with potassium bistrimethylsilyl amide have been investigated. For lanthanum, recrystallisation from THF-toluene led to monocrystals of the dimeric bisamide [La(mu -I)N(TMS)(2))(2)(THF)](2). We have shown that samarium diiodide and lanthanide triiodides are efficient for lanthanum and samarium reactions, a mixture of tris amides and iodo bisamides is obtained, while only the latter compound is obtained for ytterbium. (C) 2001 Elsevier Science B.V. All rights reserved.
• Synthesis and Structural Comparison of a Series of Divalent Ln(Tp^R,R^‘)₂ (Ln = Sm, Eu, Yb) and Trivalent Sm(Tp^Me_²)₂X (X = F, Cl, I, BPh₄) Complexes
  作者：Anna C. Hillier、Zhang、Graham H. Maunder、Sung Ying Liu、Todd A. Eberspacher、Mathew V. Metz、Robert McDonald、Ângela Domingos、Noémia Marques、Victor W. Day、Andrea Sella、Josef Takats

  DOI：10.1021/ic010325w

  日期：2001.9.1

  Reaction of LnI(2) (Ln = Sm, Yb) with two equivalents of NaTp(Me2) or reduction of Eu(Tp(Me2))(2)OTf gives good yields of the highly insoluble homoleptic Ln(II) complexes, Ln(Tp(Me2))(2) (Ln = Sm (1a), Yb (2a), Eu (3a)). Use of the additionally 4-ethyl substituted Tp(Me2,4Et) ligand produces the analogous, but soluble Ln(Tp(Me2,4Et))2 (1-3b) complexes. Soluble compounds are also obtained with the Tp(Ph) and Tp(Tn) ligands (Tn = thienyl), Ln(TpPh)(2) (Ln = Sm, Ic; Yb, 2c) and Ln(Tp(Tn))(2) (Ln = Sm, Id; Yb, 2d). To provide benchmark parameters for structural comparison the series of Sm(Tp(Me2))(2)X Complexes (X = F, 1e; Cl, 1f; Br, 1g; I, 1h; BPh4, 1j) were prepared either via oxidation of the Sm(Tp(Me2))(2) or salt metathesis from SmX3 (X = Cl, Br, I). The solid-state structures of 1-3a, 1b, 1-2c and le, 1f, 1h, and 1j were determined by single-crystal X-ray diffraction. The homoleptic bis-Tp complexes are all six-coordinate with trigonal antiprismatic geometries, planes of the kappa (3)-Tp ligands are parallel to one another. In the series of Sm(Tp(Me2))(2)X Complexes the structure changes from seven-coordinate molecular compounds, with intact Sm-X bonds, for X = F, Cl, to six-coordinate ionic structures [Sm(Tp(Me2))(2)]X (X = I, BPh4), suitable crystals of the bromide compound could not be obtained. The dependence of the structures on the size of X is understandable in terms of the interplay between the size of the cleft that the [Sm(Tp(Me2))(2)](+) fragment can make available and the donor ability of the anionic group toward the hard Sm(III) center.