N,N-diethyl 4-(dimethylamino)-2-(phenylseleno)benzamide | 523977-76-6

• 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: N,N-diethyl 4-(dimethylamino)-2-(phenylseleno)benzamide
• 英文别名: 4-(dimethylamino)-N,N-diethyl-2-phenylselanylbenzamide
• CAS: 523977-76-6
• 化学式: C₁₉H₂₄N₂OSe
• 分子量: 375.372
• InChiKey: SXPFBWFRHHKLPI-UHFFFAOYSA-N

物化性质

• 沸点：
  514.2±45.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.89
• 重原子数：
  23
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  23.6
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N,N-diethyl 4-(dimethylamino)-2-(phenylseleno)benzamide 在 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 1.5h， 以70%的产率得到2-(N,N-dimethylamino)-9H-selenoxanthone
  参考文献：
  名称：

  Selenoxanthones via Directed Metalations in 2-Arylselenobenzamide Derivatives

  摘要：

  The reaction of N, N-diethyl 4-(N, N-dimethyl-amino)-2-phenylselenobenzamide (7a), N, N-diethyl 4-methoxy-2-phenylselenobenzamide (7b), N, N-diethyl 4-(N, N'-dimethylamino)-2-[(3-(N, N-dimethylamino)phenylseleno]benzamide (7c), and N, N-diethyl 4-methoxy-2-(3-methoxy-phenylseleno)-benzamide (7d) with excess lithium diisopropylamide (LDA) gave 2-N, N-(dimethylamino)-9H-selenoxanthone (9a), 2-methoxy-9H-selenoxanthone (9b), 2,7-bis-N, N-(dimethylamino)-9H-selenoxanthone (9c), and 2,5-dimethoxy-9H-selenoxanthone (9d) in 70%, 59% 23%, and 90% isolated yields, respectively. N, N-Diethyl 2-phenylselenobenzamide (2-Se) gave no reaction with LDA, t-BuLi, MeLi, or lithium 2,2,6,6-tetramethylpiperidide as base. Electron donation from the 4-substituent of benzamide derivatives 7a-7d may increase the directing ability of the carbonyl oxygen to metalate the 2-position of the arylseleno group.

  DOI：

  10.1021/jo026635t
• 作为产物：
  描述：

  4-二甲氨基苯甲酰氯 在 四甲基乙二胺 、 叔丁基锂 作用下， 以 四氢呋喃 、 二氯甲烷 、 正戊烷 为溶剂， 反应 0.5h， 生成 N,N-diethyl 4-(dimethylamino)-2-(phenylseleno)benzamide
  参考文献：
  名称：

  Selenoxanthones via Directed Metalations in 2-Arylselenobenzamide Derivatives

  摘要：

  The reaction of N, N-diethyl 4-(N, N-dimethyl-amino)-2-phenylselenobenzamide (7a), N, N-diethyl 4-methoxy-2-phenylselenobenzamide (7b), N, N-diethyl 4-(N, N'-dimethylamino)-2-[(3-(N, N-dimethylamino)phenylseleno]benzamide (7c), and N, N-diethyl 4-methoxy-2-(3-methoxy-phenylseleno)-benzamide (7d) with excess lithium diisopropylamide (LDA) gave 2-N, N-(dimethylamino)-9H-selenoxanthone (9a), 2-methoxy-9H-selenoxanthone (9b), 2,7-bis-N, N-(dimethylamino)-9H-selenoxanthone (9c), and 2,5-dimethoxy-9H-selenoxanthone (9d) in 70%, 59% 23%, and 90% isolated yields, respectively. N, N-Diethyl 2-phenylselenobenzamide (2-Se) gave no reaction with LDA, t-BuLi, MeLi, or lithium 2,2,6,6-tetramethylpiperidide as base. Electron donation from the 4-substituent of benzamide derivatives 7a-7d may increase the directing ability of the carbonyl oxygen to metalate the 2-position of the arylseleno group.

  DOI：

  10.1021/jo026635t

文献信息

• Selenoxanthones via Directed Metalations in 2-Arylselenobenzamide Derivatives
  作者：Nancy K. Brennan、David J. Donnelly、Michael R. Detty

  DOI：10.1021/jo026635t

  日期：2003.4.1

  The reaction of N, N-diethyl 4-(N, N-dimethyl-amino)-2-phenylselenobenzamide (7a), N, N-diethyl 4-methoxy-2-phenylselenobenzamide (7b), N, N-diethyl 4-(N, N'-dimethylamino)-2-[(3-(N, N-dimethylamino)phenylseleno]benzamide (7c), and N, N-diethyl 4-methoxy-2-(3-methoxy-phenylseleno)-benzamide (7d) with excess lithium diisopropylamide (LDA) gave 2-N, N-(dimethylamino)-9H-selenoxanthone (9a), 2-methoxy-9H-selenoxanthone (9b), 2,7-bis-N, N-(dimethylamino)-9H-selenoxanthone (9c), and 2,5-dimethoxy-9H-selenoxanthone (9d) in 70%, 59% 23%, and 90% isolated yields, respectively. N, N-Diethyl 2-phenylselenobenzamide (2-Se) gave no reaction with LDA, t-BuLi, MeLi, or lithium 2,2,6,6-tetramethylpiperidide as base. Electron donation from the 4-substituent of benzamide derivatives 7a-7d may increase the directing ability of the carbonyl oxygen to metalate the 2-position of the arylseleno group.