ICH2CH(Me)OMe | 123692-02-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ICH2CH(Me)OMe
• 英文别名: 1-Iodo-2-methoxypropane
• CAS: 123692-02-4
• 化学式: C₄H₉IO
• mdl: MFCD24460727
• 分子量: 200.019
• InChiKey: FIUGHGUTAZLFGL-UHFFFAOYSA-N

物化性质

• 沸点：
  144.8±23.0 °C(Predicted)
• 密度：
  1.665±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  6
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  三苯基膦 、 ICH2CH(Me)OMe 以 乙腈 为溶剂， 反应 20.0h， 以0.640 g的产率得到(2-methoxypropyl)triphenylphosphonium iodide
  参考文献：
  名称：

  Asymmetric synthesis of (3S,4R,7S)-(−)-3-hydroxy-7-methoxy-2,2,4-trimethyl-decanoic acid, a plausible polyketide fragment of halipeptin A

  摘要：

  The first enantioselective synthesis of (3S,4R,7S)-(-)-3-hydroxy-7-methoxy-2,2,4-trimethyl-decanoic acid 4 in 11 steps and 6% overall yield, starting from commercially available methyl 2,2-dimethyl-3-hydroxy propionate 5 is described. The stereochemical flexible synthetic pathway involves a Brown's crotylboration reaction and a Corey-Bakshi-Shibata (CBS) oxazaborolidine-mediated reduction. (C) 2003 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(03)00622-0
• 作为产物：
  描述：

  1,2-二甲氧基丙烷 在 碘化铌(V) 、 水 作用下， 以 二氯甲烷 、 chloroform-d8 为溶剂， 反应 48.0h， 生成 ICH2CH(Me)OMe
  参考文献：
  名称：

  Further insights into the chemistry of niobium and tantalum pentahalides with 1,2-dialkoxyalkanes: Synthesis of bromo- and iodoalkoxides, spectroscopic and computational studies

  摘要：

  The room temperature reactions of a series of 1,2-dialkoxyalkanes ROCH2CH(R')OR" with MX5 (M = Nb, Ta; X = Br, I) in 1:1 ratio result in single C-O bond cleavage and high-yield formation of the halo-alkoxides MBr4[K-2-OCH2CH(R')OR"] or [Nbl(4){K-1-OCH2CH(R')OR")](2), and equimolar amounts of the corresponding alkyl halides RX. The reaction of NbBr5 with 1,2-climethoxyethane, dme, proceeds with preliminary formation of the ionic species (NbBr4(K-2-dme)(K-1-dme)][NbBr6], 3b, which has been identified by solution NMR at low temperature and conductivity analyses. The gas-phase structure of 3b has been optimized by DFT calculations, confirming that the dme ligands adopt bidentate and monodentate coordination, respectively. Although the formation of NbOBr3(dme), 4b, 1,4-dioxane and MeBr from NbBr5/dme (ratio 1:2) is an exoergonic process (calculated Delta G(r)(degrees) = -115.96 kcal mol(-1)), it is inhibited at room temperature. High temperature conditions enhance the production of 1,4-dioxane at the expense of selectivity. The dinuclear species NbOBr3(dme)NbBr5 (Nb-O-Nb), 5b, (X-ray) has been isolated in modest yield as byproduct of the room temperature reaction of NbBr5 with dme. In general, the 1:2 molar reactions of NbX5 (X = Br. I) with ROCH2CH(R')OR" occur with the exclusion of nearly one equivalent of organic reactant. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2011.03.005

文献信息

• Further insights into the chemistry of niobium and tantalum pentahalides with 1,2-dialkoxyalkanes: Synthesis of bromo- and iodoalkoxides, spectroscopic and computational studies
  作者：Riccardo Bini、Fabio Marchetti、Guido Pampaloni、Stefano Zacchini

  DOI：10.1016/j.poly.2011.03.005

  日期：2011.5

  The room temperature reactions of a series of 1,2-dialkoxyalkanes ROCH2CH(R')OR" with MX5 (M = Nb, Ta; X = Br, I) in 1:1 ratio result in single C-O bond cleavage and high-yield formation of the halo-alkoxides MBr4[K-2-OCH2CH(R')OR"] or [Nbl(4)K-1-OCH2CH(R')OR")](2), and equimolar amounts of the corresponding alkyl halides RX. The reaction of NbBr5 with 1,2-climethoxyethane, dme, proceeds with preliminary formation of the ionic species (NbBr4(K-2-dme)(K-1-dme)][NbBr6], 3b, which has been identified by solution NMR at low temperature and conductivity analyses. The gas-phase structure of 3b has been optimized by DFT calculations, confirming that the dme ligands adopt bidentate and monodentate coordination, respectively. Although the formation of NbOBr3(dme), 4b, 1,4-dioxane and MeBr from NbBr5/dme (ratio 1:2) is an exoergonic process (calculated Delta G(r)(degrees) = -115.96 kcal mol(-1)), it is inhibited at room temperature. High temperature conditions enhance the production of 1,4-dioxane at the expense of selectivity. The dinuclear species NbOBr3(dme)NbBr5 (Nb-O-Nb), 5b, (X-ray) has been isolated in modest yield as byproduct of the room temperature reaction of NbBr5 with dme. In general, the 1:2 molar reactions of NbX5 (X = Br. I) with ROCH2CH(R')OR" occur with the exclusion of nearly one equivalent of organic reactant. (C) 2011 Elsevier Ltd. All rights reserved.
• Asymmetric synthesis of (3S,4R,7S)-(−)-3-hydroxy-7-methoxy-2,2,4-trimethyl-decanoic acid, a plausible polyketide fragment of halipeptin A
  作者：Carmela Della Monica、Nakia Maulucci、Francesco De Riccardis、Irene Izzo

  DOI：10.1016/s0957-4166(03)00622-0

  日期：2003.10

  The first enantioselective synthesis of (3S,4R,7S)-(-)-3-hydroxy-7-methoxy-2,2,4-trimethyl-decanoic acid 4 in 11 steps and 6% overall yield, starting from commercially available methyl 2,2-dimethyl-3-hydroxy propionate 5 is described. The stereochemical flexible synthetic pathway involves a Brown's crotylboration reaction and a Corey-Bakshi-Shibata (CBS) oxazaborolidine-mediated reduction. (C) 2003 Elsevier Ltd. All rights reserved.