4-methyl-5-aminopenta-1,2-diene | 514847-20-2

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 4-methyl-5-aminopenta-1,2-diene
• 英文别名: 2-methylpenta-3,4-dienylamine
• CAS: 514847-20-2
• 化学式: C₆H₁₁N
• 分子量: 97.16
• InChiKey: DOEHGEJEOAWBMT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  7
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  26
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  4-methyl-5-aminopenta-1,2-diene 在 三乙胺 、 palladium dichloride 作用下， 以 二氯甲烷 、 N,N-二甲基乙酰胺 为溶剂， 反应 171.0h， 生成 5-allyl-3-methyl-1-(p-toluenesulfonyl)-1,2,3,6-tetrahydropyridine
  参考文献：
  名称：

  Studies on Pd(II)-Catalyzed Coupling−Cyclization of α- or β-Amino Allenes with Allylic Halides

  摘要：

  The palladium-catalyzed coupling-cyclization of alpha- or beta-amino allenes with allylic halides leading to 3-allylic 2,5-dihydropyrroles and 1,2,3,6-tetrahydropyridines, respectively, was studied. The starting materials are easily available. The skeletons of both two classes of products were established by the X-ray diffraction studies of 7i and 9b. Through the study of the reaction of 2b with 3-chloro-1-butene, 1-chloro-2-butene, and pi-allyl palladium species and the stereochemical outcome of the coupling cyclization of (S)-2m and (R)-2n, it is believed that the current transformation most likely proceeded via a Pd(II)-catalyzed pathway, although a Pd(0) pathway cannot be completely excluded.

  DOI：

  10.1021/jo0342469
• 作为产物：
  描述：

  2-methylpenta-3,4-dien-1-ol 在 一水合肼 、 三苯基膦 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 、 乙醇 、 甲苯 为溶剂， 生成 4-methyl-5-aminopenta-1,2-diene
  参考文献：
  名称：

  Studies on Pd(II)-Catalyzed Coupling−Cyclization of α- or β-Amino Allenes with Allylic Halides

  摘要：

  The palladium-catalyzed coupling-cyclization of alpha- or beta-amino allenes with allylic halides leading to 3-allylic 2,5-dihydropyrroles and 1,2,3,6-tetrahydropyridines, respectively, was studied. The starting materials are easily available. The skeletons of both two classes of products were established by the X-ray diffraction studies of 7i and 9b. Through the study of the reaction of 2b with 3-chloro-1-butene, 1-chloro-2-butene, and pi-allyl palladium species and the stereochemical outcome of the coupling cyclization of (S)-2m and (R)-2n, it is believed that the current transformation most likely proceeded via a Pd(II)-catalyzed pathway, although a Pd(0) pathway cannot be completely excluded.

  DOI：

  10.1021/jo0342469

文献信息

• Ruthenium-Catalyzed Cyclocarbonylation of Allenyl Alcohols and Amines:  Selective Synthesis of Lactones and Lactams
  作者：Eiji Yoneda、Shi-Wei Zhang、Da-Yang Zhou、Kiyotaka Onitsuka、Shigetoshi Takahashi

  DOI：10.1021/jo0350615

  日期：2003.10.1

  Allenyl alcohols such as 4-hydroxybuta-1,2-dienes and 5-hydroxypenta-1,2-dienes having a variety of substituents undergo cyclocarbonylation in the presence of a ruthenium catalyst under mild conditions selectively to give five- and six-membered lactones in a high yield with 100% atom economy. 5-Aminopenta-1,2-dines are also cyclocarbonylated to give gamma-lactams. A possible carbonylation mechanism involving a ruthenium cluster intermediate is proposed on the basis of experimental results.
• Studies on Pd(II)-Catalyzed Coupling−Cyclization of α- or β-Amino Allenes with Allylic Halides
  作者：Shengming Ma、Fei Yu、Wenzhong Gao

  DOI：10.1021/jo0342469

  日期：2003.7.1

  The palladium-catalyzed coupling-cyclization of alpha- or beta-amino allenes with allylic halides leading to 3-allylic 2,5-dihydropyrroles and 1,2,3,6-tetrahydropyridines, respectively, was studied. The starting materials are easily available. The skeletons of both two classes of products were established by the X-ray diffraction studies of 7i and 9b. Through the study of the reaction of 2b with 3-chloro-1-butene, 1-chloro-2-butene, and pi-allyl palladium species and the stereochemical outcome of the coupling cyclization of (S)-2m and (R)-2n, it is believed that the current transformation most likely proceeded via a Pd(II)-catalyzed pathway, although a Pd(0) pathway cannot be completely excluded.