4,5-dimethyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-2-one | 172686-19-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯二氮卓类
• 英文名称: 4,5-dimethyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-2-one
• 英文别名: 4,5-dimethyl-1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-2-one；4,5-dimethyl-3,4-dihydro-1H-1,5-benzodiazepin-2-one
• CAS: 172686-19-0；78679-17-1
• 化学式: C₁₁H₁₄N₂O
• mdl: MFCD01334032
• 分子量: 190.245
• InChiKey: AJQWZQHGVLTLTI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.363
• 拓扑面积：
  32.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4,5-dimethyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-2-one 在 tetraphosphorus decasulfide 作用下， 以 吡啶 为溶剂， 反应 2.0h， 以70%的产率得到2H-1,5-Benzodiazepine-2-thione, 1,3,4,5-tetrahydro-4,5-dimethyl-
  参考文献：
  名称：

  2,3-Dihydro-1H-1,5-benzodiazepines: A conversion of thiolactams to amidines

  摘要：

  The synthesis of a new series of diversely N-4 substituted amidines of 2,3-dihydro-1H-1,5-benzodiazepine has been accomplished starting from tetrahydro-1,5-benzodiazepin-2-one derivatives. These compounds were transformed into the desired thiolactams 2a-i which reacted in the presence of mercuric chloride with ammonia, as well as primary or secondary amines to give amidines 3a-i. Hydrazidines 3j-1 were prepared by treatment of thiolactams with an excess of hydrazine.

  DOI：

  10.1007/bf00807260
• 作为产物：
  描述：

  4-甲基-1,3,4,5-四氢-2H-1,5-苯并二氮杂卓-2-酮 、 碘甲烷 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 5.0h， 以0.2 g的产率得到4,5-dimethyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepin-2-one
  参考文献：
  名称：

  Nuclear magnetic resonance spectra of psychotherapeutic agents. V*—conformational analysis of 1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-2-ones

  摘要：

  AbstractThe conformational analysis of biologically active lofendazam (7‐chloro‐5‐phenyl‐1,3,4,5‐tetrahydro‐2H‐1,5‐benzodiazepin‐2‐one) is carried out by means of lanthanide shift reagent assisted 1H NMR spectroscopy: the lanthanide induced shift computer simulation suggests that in deuteriochloroform the heterocyclic ring of lofendazam assumes a cycloheptene‐like chair conformation, where 1‐N moves away from trigonal stereochemistry to a very flattened pyramidal structure. At room temperature the conformational equilibrium is markedly shifted (85%) towards the conformer showing pseudoaxial H‐1 and 5‐Ph. The remarkable influence of steric requirements in controlling conformation, and the importance of 3‐ and/or 4‐methyl groups in hindering the ring inversion at room temperature, have been verified by conformational analysis of suitable analogous 1,3,4,5‐tetraydro‐2H‐1,5‐benzodiazepin‐2‐ones.

  DOI：

  10.1002/mrc.1270150414

文献信息

• Janciene, Regina; Vektariene, Ausra; Mikulskiene, Gema, ARKIVOC, 2013, vol. 2013, # 4, p. 1 - 19
  作者：Janciene, Regina、Vektariene, Ausra、Mikulskiene, Gema、Javorskis, Tomas、Vektaris, Gytis、Klimavicius, Algirdas

  DOI：——

  日期：——
• Synthsis and mild conversion of 1,5-benzodiazepine iminothioethers into hydrazides
  作者：B. Puodžiünaité、L. Kosychova、R. Jančiené、Z. Stumbrevičiüté

  DOI：10.1007/bf02290727

  日期：1998.3
• 2,3-Dihydro-1H-1,5-benzodiazepines: A conversion of thiolactams to amidines
  作者：B. Puodžiūnaitė、L. Kosychova、R. Jančienė、Z. Stumbrevičiūtė

  DOI：10.1007/bf00807260

  日期：1997.12

  The synthesis of a new series of diversely N-4 substituted amidines of 2,3-dihydro-1H-1,5-benzodiazepine has been accomplished starting from tetrahydro-1,5-benzodiazepin-2-one derivatives. These compounds were transformed into the desired thiolactams 2a-i which reacted in the presence of mercuric chloride with ammonia, as well as primary or secondary amines to give amidines 3a-i. Hydrazidines 3j-1 were prepared by treatment of thiolactams with an excess of hydrazine.
• Nuclear magnetic resonance spectra of psychotherapeutic agents. V*—conformational analysis of 1,3,4,5-tetrahydro-2H-1,5-benzodiazepin-2-ones
  作者：M. C. Aversa、P. Giannetto、G. Romeo、P. Ficarra、M. G. Vigorita

  DOI：10.1002/mrc.1270150414

  日期：1981.4

  AbstractThe conformational analysis of biologically active lofendazam (7‐chloro‐5‐phenyl‐1,3,4,5‐tetrahydro‐2H‐1,5‐benzodiazepin‐2‐one) is carried out by means of lanthanide shift reagent assisted 1H NMR spectroscopy: the lanthanide induced shift computer simulation suggests that in deuteriochloroform the heterocyclic ring of lofendazam assumes a cycloheptene‐like chair conformation, where 1‐N moves away from trigonal stereochemistry to a very flattened pyramidal structure. At room temperature the conformational equilibrium is markedly shifted (85%) towards the conformer showing pseudoaxial H‐1 and 5‐Ph. The remarkable influence of steric requirements in controlling conformation, and the importance of 3‐ and/or 4‐methyl groups in hindering the ring inversion at room temperature, have been verified by conformational analysis of suitable analogous 1,3,4,5‐tetraydro‐2H‐1,5‐benzodiazepin‐2‐ones.