2,2,5-Trimethyl-heptane-3,4-dione | 85083-68-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,2,5-Trimethyl-heptane-3,4-dione
• 英文别名: 2,2,5-Trimethylheptane-3,4-dione
• CAS: 85083-68-7
• 化学式: C₁₀H₁₈O₂
• 分子量: 170.252
• InChiKey: COXLBGPACINGGB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  三甲基乙酸甲酯 、 一氧化碳 、 (2-methylpropyl)lithium 以 四氢呋喃 、 乙醚 、 正己烷 、 正戊烷 为溶剂， 以75%的产率得到2,2,5-Trimethyl-heptane-3,4-dione
  参考文献：
  名称：

  Synthesis of .alpha.-diketones by direct, low-temperature, in situ nucleophilic acylation of esters by acyllithium reagents

  摘要：

  Addition of n-, sec-, or tert-butyllithium to a CO-saturated solution of an ester, R'CO2R'' in a solvent system of 4:4:1 (by volume) THF/Et2O/pentane at -110-degrees-C (or at -135-degrees-C in 3:1 (by volume) Me2O/THF), followed by hydrolysis with saturated aqueous NH4Cl, results in the formation of alpha-diketones, BuC(O)C(O)R', yellow liquids, in good yield. Similar reactions with diethyl succinate gave in one instance both t-BuC(O)C(O)CH2CH2CO2Et and t-BuC(O)C(O)CH2CH2C(O)C(O)Bu-t. The monoacylation product of dimethyl oxalate, t-BuC(O)C(O)CO2Me, readily formed a crystalline hydrate, t-BuC(O)C(OH)2CO2Me.

  DOI：

  10.1021/jo00020a014

文献信息

• NOVEL BIPYRIDYL DERIVATIVES
  申请人：Sankio Chemical Co., Ltd.

  公开号：EP1231207A1

  公开（公告）日：2002-08-14

  Provided are novel specific dipyridyl derivatives as a useful substance or an intermediate in the fields of pharmaceuticals, agrichemicals, ligands, silver halide photosensitive materials, liquid crystals, surfactants, electrophotography and organic electroluminescence.

  本文提供了新型特异性二吡啶衍生物，可作为有用物质或中间体用于制药、农用化学品、配体、卤化银感光材料、液晶、表面活性剂、电致发光和有机电致发光领域。
• High-yield acyl anion trapping reactions: syntheses of .alpha.-hydroxy ketones and 1,2-diketones
  作者：Dietmar Seyferth、Robert M. Weinstein、Wei Liang Wang

  DOI：10.1021/jo00155a057

  日期：1983.4
• SEYFERTH, D.;WEINSTEIN, R. M.;WANG, W. -L., J. ORG. CHEM., 1983, 48, N 7, 1144-1146
  作者：SEYFERTH, D.、WEINSTEIN, R. M.、WANG, W. -L.

  DOI：——

  日期：——
• US6603007B1
  申请人：——

  公开号：US6603007B1

  公开（公告）日：2003-08-05
• Synthesis of .alpha.-diketones by direct, low-temperature, in situ nucleophilic acylation of esters by acyllithium reagents
  作者：Dietmar Seyferth、Robert M. Weinstein、Richard C. Hui、Wei Liang Wang、Colin M. Archer

  DOI：10.1021/jo00020a014

  日期：1991.9

  Addition of n-, sec-, or tert-butyllithium to a CO-saturated solution of an ester, R'CO2R'' in a solvent system of 4:4:1 (by volume) THF/Et2O/pentane at -110-degrees-C (or at -135-degrees-C in 3:1 (by volume) Me2O/THF), followed by hydrolysis with saturated aqueous NH4Cl, results in the formation of alpha-diketones, BuC(O)C(O)R', yellow liquids, in good yield. Similar reactions with diethyl succinate gave in one instance both t-BuC(O)C(O)CH2CH2CO2Et and t-BuC(O)C(O)CH2CH2C(O)C(O)Bu-t. The monoacylation product of dimethyl oxalate, t-BuC(O)C(O)CO2Me, readily formed a crystalline hydrate, t-BuC(O)C(OH)2CO2Me.