1-tert-butyl-1H-imidazole-2-carbaldehyde | 117983-77-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-tert-butyl-1H-imidazole-2-carbaldehyde
• 英文别名: N-tert-butyl-1H-imidazole-2-carbaldehyde；1-tert-butylimidazole-2-carboxaldehyde；N-t-butylimidazole carboxyaldehyde；1-(Tert-butyl)-1H-imidazole-2-carbaldehyde；1-tert-butylimidazole-2-carbaldehyde
• CAS: 117983-77-4
• 化学式: C₈H₁₂N₂O
• mdl: MFCD07380881
• 分子量: 152.196
• InChiKey: BGLPNOALYAMAAL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  34.9
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-tert-butyl-1H-imidazole-2-carbaldehyde 在 盐酸羟胺 、 碳酸氢钠 作用下， 以 硝基甲烷 、 乙醇 为溶剂， 反应 0.25h， 生成 3-tert-butyl-1-(hex-5'-yn-1-yl)-2-<(hydroxyimino)methyl>imidazolium triflate
  参考文献：
  名称：

  Quaternary salts of 2-[(hydroxyimino)methyl]imidazole. 3. Synthesis and evaluation of (alkenyloxy)-, (alkynyloxy)-, and (aralykyloxy)methyl quaternarized 2-[(hydroxyimino)methyl]-1-alkylimidazolium halides as reactivators and therapy for soman intoxication

  摘要：

  A series of structurally related monosubstituted 1-[(alkenyloxy)methyl]-, 1-[(alkynyloxy)methyl]-, and 1-[(aralkyloxy)methyl]-2-[(hydroxyimino)methyl]-3-methyli midazolium halides were prepared and evaluated. All new compounds were characterized with respect to (hydroxyimino)methyl acid dissociation constant, nucleophilicity, and octanol-buffer partition coefficient. The alkynyloxy-substituted compounds were also evaluated in vitro with respect to reversible inhibition of human erythrocyte (RBC) acetylcholinesterase (AChE) and kinetics of reactivation of human AChE inhibited by ethyl p-nitrophenyl methylphosphonate (EPMP). In vivo evaluation in mice revealed that coadministration of alkynyloxy-substituted imidazolium compounds with atropine sulfate provided significant protection against a 2 x LD50 challenge of GD. For the alkynyloxy-substituted imidazolium drugs there is a direct relationship between in vitro and in vivo activity: the most potent in vivo compounds against GD proved to be potent in vitro reactivators against EPMP-inhibited human AChE. These results differ from the observations made on the sterically hindered imidazolium compounds (see previous article) and suggest that several antidotal mechanisms of protective action may be applicable for the imidazolium aldoxime family of therapeutics. The ability of the alkynyloxy substituents to provide life-saving protection against GD intoxication was not transferable to the pyridinium or triazolium heteroaromatic ring systems.

  DOI：

  10.1021/jm00122a035
• 作为产物：
  描述：

  N,N-二甲基甲酰胺 、 1-叔丁基-1H-咪唑 在 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 5.0h， 以63.4%的产率得到1-tert-butyl-1H-imidazole-2-carbaldehyde
  参考文献：
  名称：

  通过动态模板选择用于酯动力学拆分的手性锌催化剂

  摘要：

  制备并筛选了手性四齿双亚胺锌（II）配合物的动态组合库，用于（1）鉴别对映体吡啶甲酸酯和吡啶基膦酸酯过渡态类似物（TSA），以及（2）催化活性和对映选择性甲醇分解的选择性外消旋吡啶甲酸酯。锌配合物与其亚胺配体以及形成它们的醛和胺结构单元处于平衡状态，从而使文库的组成能够适应配位底物或TSA的引入。二进制（L）的Zn（OTF）（SOLV）+络合物单独地或在由手性酒石酸盐衍生的二胺（库产生的2，3）和一组N-杂环醛（4 – 12）和通过ESI-MS分析建立的配合物分布。（diimine）Zn（OTf）2复杂文库与对映异构体R-和S -2-吡啶基膦酸酯TSA 13的结合研究表明，通过形成对映异构体比率低至中等的非对映异构体LZn（R / S - 13）+络合物形成手性区分，k R / k S（α），范围从0.5到5.0；选定的二元配合物与对映体底物PyrCO 2 CH（OH）Ph（1的相应模板），手性识别率可忽略不计。几种L

  DOI：

  10.1021/co3001023

文献信息

• Origins of stereoselectivity in optically pure phenylethaniminopyridine tris-chelates M(NN′)3n+ (M = Mn, Fe, Co, Ni and Zn)
  作者：Suzanne E. Howson、Laura E. N. Allan、Nikola P. Chmel、Guy J. Clarkson、Robert J. Deeth、Alan D. Faulkner、Daniel H. Simpson、Peter Scott

  DOI：10.1039/c1dt10588d

  日期：——

  One-pot reactions of 2-pyridinecarboxaldehyde, chiral phenylethanamines and Fe(II) give single diastereomer facdiimine complexes at thermodynamic equilibrium so that no chiral separations are required (d.r. > 200 : 1). The origins of this stereoselectivity are partly steric and partly a result of the presence of three sets of inter-ligand parallel-offset π-stacking interactions. Mn(II), Co(II), Co(III), Ni(II) and Zn(II) give similar fac structures, alongside the imidazole analogues for Fe(II). While most of the complexes are paramagnetic, the series of molecular structures allows us to assess the influence of the π-stacking present, and there is a strong correlation between this and the M–N bond length. Fe(II) is close to optimal. For the larger Zn(II) ion, very weak π-stacking leads to poorer measured stereoselectivity (NMR) but this is improved with increased solvent polarity. The mechanism of stereoselection is further investigated via DFT calculations, chiroptical spectroscopy and the use of synthetic probes.

  2-吡啶甲醛、手性苯乙胺和Fe(II)的一锅反应在热力学平衡下生成单一的非对映异构体fac二亚胺复合物，因此不需要进行手性分离（d.r. > 200:1）。这种立体选择性的来源部分是立体因素，部分是由于存在三组配体间的平行偏移π-堆叠相互作用。Mn(II)、Co(II)、Co(III)、Ni(II)和Zn(II)也形成类似的fac结构，此外还有Fe(II)的咪唑类类似物。虽然大多数复合物是顺磁性的，但这系列分子结构使我们能够评估π-堆叠的影响，并且这种影响与M–N键长之间有很强的相关性。Fe(II)接近最佳状态。对于较大的Zn(II)离子，极弱的π-堆叠导致测得的立体选择性较差（NMR），但随着溶剂极性的增加，这种情况得到改善。立体选择机制还通过DFT计算、手性光谱分析以及合成探针的使用进一步研究。
• HETEROARYL COMPOUNDS AND USES THEREOF
  申请人：Singh Juswinder

  公开号：US20100016296A1

  公开（公告）日：2010-01-21

  The present invention provides compounds, pharmaceutically acceptable compositions thereof, and methods of using the same.

  本发明提供了化合物，其药学上可接受的组成物和使用它们的方法。
• US7989465B2
  申请人：——

  公开号：US7989465B2

  公开（公告）日：2011-08-02
• Selection of Chiral Zinc Catalysts for the Kinetic Resolution of Esters via Dynamic Templating
  作者：R. Kannappan、K. M. Nicholas

  DOI：10.1021/co3001023

  日期：2013.2.11

  of chiral tetradentate bis-imine zinc(II) complexes have been prepared and screened for (1) their discrimination of enantiomeric picolinate esters and pyridyl phosphonate transition state analogs (TSAs) and (2) their catalytic activity and selectivity for enantioselective methanolysis of racemic picolinate esters. The zinc complexes are in equilibrium with their imine ligands as well as with the aldehyde

  制备并筛选了手性四齿双亚胺锌（II）配合物的动态组合库，用于（1）鉴别对映体吡啶甲酸酯和吡啶基膦酸酯过渡态类似物（TSA），以及（2）催化活性和对映选择性甲醇分解的选择性外消旋吡啶甲酸酯。锌配合物与其亚胺配体以及形成它们的醛和胺结构单元处于平衡状态，从而使文库的组成能够适应配位底物或TSA的引入。二进制（L）的Zn（OTF）（SOLV）+络合物单独地或在由手性酒石酸盐衍生的二胺（库产生的2，3）和一组N-杂环醛（4 – 12）和通过ESI-MS分析建立的配合物分布。（diimine）Zn（OTf）2复杂文库与对映异构体R-和S -2-吡啶基膦酸酯TSA 13的结合研究表明，通过形成对映异构体比率低至中等的非对映异构体LZn（R / S - 13）+络合物形成手性区分，k R / k S（α），范围从0.5到5.0；选定的二元配合物与对映体底物PyrCO 2 CH（OH）Ph（1的相应模板），手性识别率可忽略不计。几种L
• Quaternary salts of 2-[(hydroxyimino)methyl]imidazole. 3. Synthesis and evaluation of (alkenyloxy)-, (alkynyloxy)-, and (aralykyloxy)methyl quaternarized 2-[(hydroxyimino)methyl]-1-alkylimidazolium halides as reactivators and therapy for soman intoxication
  作者：Clifford D. Bedford、Ralph N. Harris、Robert A. Howd、Dane A. Goff、Gary A. Koolpe、M. Petesch、Irwin Koplovitz、Walter E. Sultan、H. A. Musallam

  DOI：10.1021/jm00122a035

  日期：1989.2

  A series of structurally related monosubstituted 1-[(alkenyloxy)methyl]-, 1-[(alkynyloxy)methyl]-, and 1-[(aralkyloxy)methyl]-2-[(hydroxyimino)methyl]-3-methyli midazolium halides were prepared and evaluated. All new compounds were characterized with respect to (hydroxyimino)methyl acid dissociation constant, nucleophilicity, and octanol-buffer partition coefficient. The alkynyloxy-substituted compounds were also evaluated in vitro with respect to reversible inhibition of human erythrocyte (RBC) acetylcholinesterase (AChE) and kinetics of reactivation of human AChE inhibited by ethyl p-nitrophenyl methylphosphonate (EPMP). In vivo evaluation in mice revealed that coadministration of alkynyloxy-substituted imidazolium compounds with atropine sulfate provided significant protection against a 2 x LD50 challenge of GD. For the alkynyloxy-substituted imidazolium drugs there is a direct relationship between in vitro and in vivo activity: the most potent in vivo compounds against GD proved to be potent in vitro reactivators against EPMP-inhibited human AChE. These results differ from the observations made on the sterically hindered imidazolium compounds (see previous article) and suggest that several antidotal mechanisms of protective action may be applicable for the imidazolium aldoxime family of therapeutics. The ability of the alkynyloxy substituents to provide life-saving protection against GD intoxication was not transferable to the pyridinium or triazolium heteroaromatic ring systems.