N-(3-butylpenta-3,4-dienyl)-p-toluenesulfonamide | 457629-95-7

• 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-(3-butylpenta-3,4-dienyl)-p-toluenesulfonamide
• CAS: 457629-95-7
• 化学式: C₁₆H₂₃NO₂S
• 分子量: 293.43
• InChiKey: FYEAIJOEGVKXCY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  20
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  54.6
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-溴丙烯 、 N-(3-butylpenta-3,4-dienyl)-p-toluenesulfonamide 在 palladium dichloride 作用下， 以 N,N-二甲基乙酰胺 为溶剂， 反应 5.0h， 以76%的产率得到5-allyl-4-butyl-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：

  在 一水合肼 、 三乙胺 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 生成 N-(3-butylpenta-3,4-dienyl)-p-toluenesulfonamide
  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

• Studies on Pd⁰-Catalyzed Cyclization of<i>N</i>-3,4-Alkadienyl Toluenesulfonamides with Organic Halides: Selective Synthesis of 2,3-Dihydropyrroles, 1,2,3,6-Tetrahydropyrridines, and Azetidines
  作者：Shengming Ma、Fei Yu、Jing Li、Wenzhong Gao

  DOI：10.1002/chem.200600431

  日期：2007.1

  The palladium-catalyzed coupling-cyclization of beta-amino allenes with organic halides ranging from aryl halide to 1-alkenyl halide was studied. 2,3-Dihydro-1H-pyrroles were obtained by reaction of 3-substituted-5-unsubstituted-3,4-allenyl amides under conditions A, while the reaction of 5-substituted-3,4-allenyl amides afforded 1,2,5,6-tetrahydropyridines and/or azetidines with high de under conditions

  研究了钯催化的β-氨基烯丙基与有机卤化物的偶合环化反应，这些卤化物的范围从芳基卤化物到1-链烯基卤化物。通过3-取代的5-未取代的-3,4-烯丙基酰胺在条件A下的反应获得2,3-二氢-1H-吡咯，而5-取代的3,4-烯丙基酰胺的反应得到1,2在条件B或C下具有高de的1,5,6-四氢吡啶和/或氮杂环丁烷。通过10 ka的X射线衍射研究确定了六元产物的骨架和相对构型。烯丙基酰胺4q与1,4-二碘苯6r反应，得​​到双环化产物15。还通过X射线衍射研究确定了其主要立体异构体的结构。
• Tuning the Reaction Paths in Palladium(0)-Catalyzed Coupling−Cyclization Reaction of β-Amino Allenes with Organic Halides:  A Substituent Switch
  作者：Shengming Ma、Wenzhong Gao

  DOI：10.1021/ol026406t

  日期：2002.8.1

  [reaction: see text] Substituent effects on the allene moiety and the N-protecting group were found to be the dominant factor in determining the reaction paths in the Pd(0)-catalyzed coupling-cyclization reaction of beta-amino allenes with organic halides.

  [反应：参见文本]发现对丙二烯部分和N保护基的取代作用是决定Pd（0）催化的β-氨基丙二烯与有机卤化物偶联偶联环化反应中反应路径的主要因素。