1-(2,2-dimethylpent-4-enyl)-3-benzylurea | 114445-38-4

• 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: 1-(2,2-dimethylpent-4-enyl)-3-benzylurea
• 英文别名: 1-benzyl-3-(2,2-dimethylpent-4-enyl)urea
• CAS: 114445-38-4
• 化学式: C₁₅H₂₂N₂O
• 分子量: 246.352
• InChiKey: AQENHRFETVFRHK-UHFFFAOYSA-N

物化性质

• 熔点：
  52-54 °C
• 沸点：
  420.1±34.0 °C(Predicted)
• 密度：
  0.994±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.09
• 重原子数：
  18.0
• 可旋转键数：
  6.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  41.13
• 氢给体数：
  2.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  1-(2,2-dimethylpent-4-enyl)-3-benzylurea 在 双(乙腈)氯化钯(II) 、 N-氯代丁二酰亚胺 作用下， 以 二氯甲烷 为溶剂， 反应 18.0h， 以91%的产率得到N-benzyl-2-(chloromethyl)-4,4-dimethylpyrrolidine-1-carboxamide
  参考文献：
  名称：

  Palladium-Catalyzed Intramolecular Chloroamination of Alkenes

  摘要：

  A mild and facile Pd-catalyzed intramolecular chloroamination of unactivated alkenes has been described. This reaction takes place at room temperature and is tolerant of synthetically useful acid-sensitive functional groups. Generally high exo-selectivities are observed in the formation of a variety of 5- and 6-membered rings. This system is unique in its ability to tolerate multidentate ligands on palladium, which opens up the possibility of controlling the absolute sense of induction using a chiral ligand.

  DOI：

  10.1021/ol702922c
• 作为产物：
  描述：

  2,2-dimethyl-1-amino-pent-4-ene 、 异氰酸苄酯 以 二氯甲烷 为溶剂， 以96%的产率得到1-(2,2-dimethylpent-4-enyl)-3-benzylurea
  参考文献：
  名称：

  Palladium-Catalyzed Intramolecular Chloroamination of Alkenes

  摘要：

  A mild and facile Pd-catalyzed intramolecular chloroamination of unactivated alkenes has been described. This reaction takes place at room temperature and is tolerant of synthetically useful acid-sensitive functional groups. Generally high exo-selectivities are observed in the formation of a variety of 5- and 6-membered rings. This system is unique in its ability to tolerate multidentate ligands on palladium, which opens up the possibility of controlling the absolute sense of induction using a chiral ligand.

  DOI：

  10.1021/ol702922c

文献信息

• Urea as the most reactive and versatile nitrogen nucleophile for the palladium(2+)-catalyzed cyclization of unsaturated amines
  作者：Yoshinao. Tamaru、Makoto. Hojo、Hideyuki. Higashimura、Zenichi. Yoshida

  DOI：10.1021/ja00220a044

  日期：1988.6

  Des urees substituees en position 1 par un alcenyl: allyl, butene-3yl, pentene-4yl et hexene-5yl, subissent une aminocarbonylation pour donner les imidazolidones-2, pyrimidones-2, diaza-1,3 bicyclo [4.3.0] nonadiones-2,4, et diaza-1,3 bicyclo [4.4.0] decanediones-2,4, correspondantes

  Des urees substituees en position 1 par un alcenyl: allyl, butene-3yl,pentene-4yl et hexene-5yl, subissent une aminocarbonylation pour donner les imidazolidones-2, pyrimidones-2, diaza-1,3 bicyclo [4.3.0] nonadiones -2,4, et diaza-1,3 bicyclo [4.4.0] decanediones-2,4, 通讯员
• Metal-Free Oxidative Cyclization of Urea-Tethered Alkenes with Hypervalent Iodine
  作者：Brian M. Cochran、Forrest E. Michael

  DOI：10.1021/ol8022165

  日期：2008.11.6

  A metal-free oxidative cyclization of ureas onto unactivated alkenes using iodosylbenzene and an acid promoter is described. The products isolated are predominantly bicyclic isoureas resulting from an intramolecular oxyamination reaction. The acid type and urea substitution have a strong effect on the product formed. A variety of substrates form the isourea with high diastereoselectivity via syn addition

  描述了使用碘基苯和酸促进剂将尿素在未活化的烯烃上的无金属氧化环化。分离出的产物主要是分子内氧化胺化反应产生的双环异脲。酸类型和尿素取代对形成的产物有强烈影响。各种底物通过顺式加成形成具有高非对映选择性的异脲，包括二和三取代的烯烃。异脲的水解获得了新的非对映异构纯的脯氨醇衍生物。
• Palladium-Catalyzed Diamination of Unactivated Alkenes Using <i>N</i>-Fluorobenzenesulfonimide as Source of Electrophilic Nitrogen
  作者：Paul A. Sibbald、Forrest E. Michael

  DOI：10.1021/ol9000087

  日期：2009.3.5

  A remarkable Pd-catalyzed diamination of unactivated alkenes using N-fluorobenzenesulfonimide (NFBS) as an aminating reagent is described. The reaction occurs in an intra/intermolecular fashion, incorporating one nitrogen donor from the substrate and the other from the NFBS, thereby generating cyclic diamine derivatives in a single step. The products are differentially protected at both nitrogens,

  描述了使用N-氟苯磺酰亚胺（NFBS）作为胺化试剂的Pd催化的未活化烯烃的重整。该反应以分子内/分子间方式发生，从底物引入一个氮供体，从NFBS引入另一个氮供体，从而在一个步骤中生成环状二胺衍生物。产品在两个氮原子上都得到了不同的保护，从而实现了最大的合成灵活性。Pd（IV）物种的中间性被认为是造成NFBS异常反应的原因。