2-benzyl-4-pentenenitrile | 18620-18-3

• 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: 2-benzyl-4-pentenenitrile
• 英文别名: 2-benzylpent-4-enenitrile；Allyl-benzyl-essigsaeure-nitril, 2-Benzyl-penten-(4)-nitril；2-Benzyl-penten-(4)-saeurenitril
• CAS: 18620-18-3
• 化学式: C₁₂H₁₃N
• 分子量: 171.242
• InChiKey: TUQPSYPVFSITMO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  23.8
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-benzyl-4-pentenenitrile 在 palladium on activated charcoal 氢气 作用下， 以 乙酸乙酯 为溶剂， 反应 4.0h， 以99%的产率得到2-benzylpentanenitrile
  参考文献：
  名称：

  在制备对映体功能化的羧酸和酰胺的腈生物转化中的显着电子和立体效应：对酰胺酶的不饱和碳-碳键结合域的暗示

  摘要：

  红球菌催化各种功能化外消旋腈的生物转化研究了含腈水合酶/酰胺酶的微生物全细胞催化剂AJ270。尽管腈水合酶显示出高的催化效率，但对几乎所有所检测的腈底物的对映选择性都非常低，但酰胺酶对酰胺的结构非常敏感。围绕基质立体中心的空间拥挤的释放以及向基质中引入不饱和碳-碳键导致反应速率的显着加速和对映选择性的显着提高。腈的生物转化提供了独特的，高产的合成路线，可合成被烯丙基，炔丙基，烯基或乙烯基官能化的高度对映体纯的羧酸和酰胺。H-喹啉-2-酮衍生物。

  DOI：

  10.1021/jo070581b
• 作为产物：
  描述：

  N-allyl-3-phenylpropanamide 在 四氯化碳 、 三乙胺 、 三苯基膦 作用下， 以 二氯甲烷 为溶剂， 反应 15.0h， 以67%的产率得到2-benzyl-4-pentenenitrile
  参考文献：
  名称：

  Rearrangements of Substituted 3-Aza-1,2,5-hexatrienes. 3. The Scope and Versatility of an Extremely Mild 3-Aza-Cope Reaction

  摘要：

  An investigation of the [3,3]-sigmatropic reaction of substituted 3-aza-1,2,5-hexatrienes to give 4-pentenenitriles is presented. This reaction has been found to occur under a wide variety of reactions conditions (10 are reported) starting from readily available N-allylamides. In contrast to other 3-aza-Cope reactions, this process occurs at room temperature, under essentially neutral conditions, allowing for the facile preparation of substituted nitrile products in moderate to excellent yields. The scope and versatility of this reaction are demonstrated by its use on a wide variety of substrates, including nitrogen- and oxygen-substituted amides. The rearrangements of cis- and trans-4-tert-butyl-N-allylcyclohexanecarboxamides 16a and 16b are reported and were found to give a ratio of axial to equatorial (A:E) products consistent with A:E ratios found for other related sigmatropic reactions. The stereochemical requirements for this reaction appear to be similar to other [3,3]-rearrangements even though the transition state for this rearrangement is most likely neither boat nor chairlike.

  DOI：

  10.1021/jo951587g

文献信息

• Lanthanide-Catalyzed Tandem Addition of Amines to Cyanoalkenes: Synthesis of Cyclic Amidines
  作者：Jinsong Hou、Gaosheng Yang、Zhuo Chai

  DOI：10.1021/acs.joc.1c02481

  日期：2022.1.7

  A tandem insertion of aliphatic nitriles and unactivated alkenes to the N–H bond of secondary aliphatic amines catalyzed by simple trialkyl rare-earth metal complexes was disclosed. This reaction provides a highly atom-economic and stereoselective way to a range of cyclic amidines under mild reaction conditions.

  公开了由简单的三烷基稀土金属配合物催化的脂肪族腈和未活化烯烃串联插入脂肪族仲胺的 N-H 键。该反应在温和的反应条件下为一系列环状脒提供了一种高度原子经济和立体选择性的方法。
• Palladium-catalyzed highly selective intramolecular bromoamination of alkenes: Efficient synthesis of substituted pyrrolidines
  作者：Jingfang Zhang、Xie Wang、Yulong Liu、Xiaoyun Wang、Wei He

  DOI：10.1002/aoc.3631

  日期：2017.6

  A new method has been developed for the preparation of substituted pyrrolidines by the palladium‐catalyzed intramolecular bromoamination of substituted aminoalkenes. The catalytic system and reaction conditions used for this transformation have been fully optimized. Notably, this reaction exhibits excellent selectivity, affording the pyrrolidine products as single 5‐exo‐bromoalkylpyrrolidines in excellent

  已开发出一种新方法，可通过钯催化的取代氨基烯烃的分子内溴化反应来制备取代的吡咯烷。用于此转化的催化体系和反应条件已得到充分优化。值得注意的是，该反应具有出色的选择性，并以极高的收率得到了吡咯烷产品，为单5-外溴代烷基吡咯烷。此外，该反应在室温和温和条件下发生，在1小时内完成。
• The monoalkylation of primary nitriles using lithium dialkylamides
  作者：David S. Watt

  DOI：10.1016/s0040-4039(01)82310-8

  日期：1974.1
• Watt,D.S., Synthetic Communications, 1974, vol. 4, p. 127 - 132
  作者：Watt,D.S.

  DOI：——

  日期：——
• An extremely mild 3-aza-Claisen reaction. 1. Rearrangement of simple N-allylamides.
  作者：Michael A. Walters、Colleen S. McDonough、Perry S. Brown、Andrew B. Hoem

  DOI：10.1016/0040-4039(91)80848-z

  日期：1991.1

  An extremely mild 3-aza-Claisen reaction has been developed. Readily available N-allyl amides are converted to pentenylnitriles in moderate to good yields by a transformation that occurs at room temperature under essentially neutral conditions.