5-(2-Tert-butylanilino)-5-oxopentanoic acid | 720712-03-8

• 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: 5-(2-Tert-butylanilino)-5-oxopentanoic acid
• CAS: 720712-03-8
• 化学式: C₁₅H₂₁NO₃
• mdl: MFCD06067118
• 分子量: 263.337
• InChiKey: XTZALGKANNDQPK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.466
• 拓扑面积：
  66.4
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-(2-Tert-butylanilino)-5-oxopentanoic acid 在 三氯化铝 、 二异丁基氢化铝 、 甲基磺酰氯 、 三乙胺 、 N,N'-羰基二咪唑 作用下， 以 二氯甲烷 、 氯仿 为溶剂， 反应 14.25h， 生成 1,6-diphenylpiperidin-2-one
  参考文献：
  名称：

  Stereoselectivity in reactions of atropisomeric lactams and imides

  摘要：

  A range of reactions of cyclic lactam systems is described in which an atropisomeric C-N axis controls the stereochemical outcome of ring substitution or addition. In the case of enantiopure menthol adducts, substitution via N-acyliminium intermediates occurred with essentially complete control. However, the range of nucleophiles that participate in the reaction is very limited and at present the removal of the N-aryl substituent is problematic. A six-membered enamide is of moderate configurational stability and the axis exerts synthetically useful levels of control over enolate alkylations of the system. A novel Lewis acid mediated enamide arylation process was identified. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.01.100
• 作为产物：
  描述：

  戊二酸酐 、 2-叔丁基苯胺 以 甲苯 为溶剂， 反应 1.0h， 以98%的产率得到5-(2-Tert-butylanilino)-5-oxopentanoic acid
  参考文献：
  名称：

  Stereoselectivity in reactions of atropisomeric lactams and imides

  摘要：

  A range of reactions of cyclic lactam systems is described in which an atropisomeric C-N axis controls the stereochemical outcome of ring substitution or addition. In the case of enantiopure menthol adducts, substitution via N-acyliminium intermediates occurred with essentially complete control. However, the range of nucleophiles that participate in the reaction is very limited and at present the removal of the N-aryl substituent is problematic. A six-membered enamide is of moderate configurational stability and the axis exerts synthetically useful levels of control over enolate alkylations of the system. A novel Lewis acid mediated enamide arylation process was identified. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.01.100

文献信息

• Stereoselectivity in reactions of atropisomeric lactams and imides
  作者：D.Jonathan Bennett、Alexander J Blake、Paul A Cooke、Christopher R.A Godfrey、Paula L Pickering、Nigel S Simpkins、Matthew D Walker、Claire Wilson

  DOI：10.1016/j.tet.2004.01.100

  日期：2004.5

  A range of reactions of cyclic lactam systems is described in which an atropisomeric C-N axis controls the stereochemical outcome of ring substitution or addition. In the case of enantiopure menthol adducts, substitution via N-acyliminium intermediates occurred with essentially complete control. However, the range of nucleophiles that participate in the reaction is very limited and at present the removal of the N-aryl substituent is problematic. A six-membered enamide is of moderate configurational stability and the axis exerts synthetically useful levels of control over enolate alkylations of the system. A novel Lewis acid mediated enamide arylation process was identified. (C) 2004 Elsevier Ltd. All rights reserved.
• Light-Induced Enantiospecific 4π Ring Closure of Axially Chiral 2-Pyridones: Enthalpic and Entropic Effects Promoted by H-Bonding
  作者：Elango Kumarasamy、Josepha L. Jesuraj、Joseph N. Omlid、Angel Ugrinov、Jayaraman Sivaguru

  DOI：10.1021/ja203087a

  日期：2011.11.2

  Nonbiaryl axially chiral 2-pyridones were synthesized and employed for light-induced electrocyclic 4 pi ring closure leading to bicyclo-beta-lactam photoproducts in solution. The enantioselectivity in the photoproducts varied from 22 to 95% depending on the reaction temperature and the ability of the axially chiral chromophore to form intramolecular and/or intermolecular H-bonds with the solvent. On the basis of the differential activation parameters, entropic control of the enantiospecificity was observed for 2-pyridones lacking the ability to form H-bonds. Conversely, enthalpy played a significant role for 2-pyridones having the ability to form H-bonds.