(E)-2-methyl-2,5-diphenylpent-4-enal

• 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: (E)-2-methyl-2,5-diphenylpent-4-enal
• 化学式: C₁₈H₁₈O
• 分子量: 250.34
• InChiKey: UYOJVAFIERWSLB-DHZHZOJOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  19
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  1-苯基-1-丙炔 、 2-苯基丙醛 在 tris(dibenzylideneacetone)dipalladium(0) chloroform complex 苯甲酸 、 2-二环己膦基-2'-(N,N-二甲胺)-联苯 作用下， 以 甲苯 为溶剂， 以89%的产率得到(E)-2-methyl-2,5-diphenylpent-4-enal
  参考文献：
  名称：

  在 50 °C 下钯催化亲核试剂与炔烃的烯丙基化 - 2-（二环己基膦酰基）-2'-（二甲氨基）联苯作为配体的显着效果

  摘要：

  在催化量的 Pd2(dba)3·CHCl3 (5 mol-%) 和 2-(二环己基膦酰基)-2'-(二甲氨基)联苯 (I; 20 mol-%) 在甲苯中，而当使用 Pd(PPh3)4 或 Pd2(dba)3·CHCl3/PPh3 时，反应需要 100 °C 才能完成。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)

  DOI：

  10.1002/ejoc.200600337

文献信息

• Palladium-Catalyzed Allylic Alkylation of Simple Ketones with Allylic Alcohols and Its Mechanistic Study
  作者：Xiaohong Huo、Guoqiang Yang、Delong Liu、Yangang Liu、Ilya D. Gridnev、Wanbin Zhang

  DOI：10.1002/anie.201403410

  日期：2014.6.23

  Allylic alcohols were directly used in Pd‐catalyzed allylic alkylations of simple ketones under mild reaction conditions. The reaction proceeded smoothly at 20 °C by the concerted action of a Pd catalyst, a pyrrolidine co‐catalyst, and a hydrogen‐bonding solvent, and does not require any additional reagents. A computational study suggested that methanol plays a crucial role in the formation of the

  在温和的反应条件下，烯丙醇直接用于钯催化的简单酮的烯丙基烷基化反应。在20°C下，Pd催化剂，吡咯烷助催化剂和氢键合溶剂的协同作用使反应顺利进行，不需要任何其他试剂。一项计算研究表明，甲醇通过降低活化势垒在π-烯丙基铝配合物的形成中起着至关重要的作用。
• Palladium/Brønsted Acid-Catalyzed α-Allylation of Aldehydes with Allylic Alcohols
  作者：Gaoxi Jiang、Benjamin List

  DOI：10.1002/adsc.201100260

  日期：2011.7

  A simple, highly efficient, and readily scalable direct α‐allylation of aldehydes with allylic alcohols that is co‐catalyzed by palladium and a Brønsted acid has been developed.

  已经开发了一种简单，高效且易于扩展的醛与烯丙醇的直接α-烯丙基化反应，该反应由钯和布朗斯台德酸共同催化。
• A Convenient and Efficient Route for the Allylation of Aromatic Amines and α-Aryl Aldehydes with Alkynes in the Presence of a Pd(0)/PhCOOH Combined Catalyst System
  作者：Nitin T. Patil、Huanyou Wu、Isao Kadota、Yoshinori Yamamoto

  DOI：10.1021/jo0485684

  日期：2004.12.1

  The allylation of aromatic amines with alkynes proceeded smoothly in the presence of catalytic amounts of Pd(PPh3)(4) and benzoic acid. The allylation products were obtained in high yields in a regio- and stereoselective manner. The effect of various groups on the nitrogen atom of anilines was studied. Regardless of the substituent (electron withdrawing or electron donating) on the aromatic ring, the reaction proceeded well. Various functionalities, including -CH3, -OMe, -Cl, -CN, -COOMe, -NO2 and -COCH3 were tolerated under the reaction conditions. Similarly, the allylation of alpha-aryl aldehydes proceeded well with the same level of regio- and stereoselectivity as the allylation of aromatic amines. This reaction provides the second example of the transition metal catalyzed direct alpha-allylation of aldehydes.
• Strikingly Simple Direct α-Allylation of Aldehydes with Allyl Alcohols:  Remarkable Advance in the Tsuji−Trost Reaction
  作者：Masanari Kimura、Yoshikazu Horino、Ryutaro Mukai、Shuji Tanaka、Yoshinao Tamaru

  DOI：10.1021/ja011656a

  日期：2001.10.1
• MURAHASHI, SHUN-ICHI;MAKABE, YOSHIKI;KUNITA, KAZUTO, J. ORG. CHEM., 53,(1988) N 19, C. 4489-4495
  作者：MURAHASHI, SHUN-ICHI、MAKABE, YOSHIKI、KUNITA, KAZUTO

  DOI：——

  日期：——