1-bromo-4-(1-methoxy-but-3-enyl)benzene | 114095-76-0

• 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-bromo-4-(1-methoxy-but-3-enyl)benzene
• 英文别名: 1-bromo-4-(1-methoxybut-3-enyl)benzene；4-(4-bromophenyl)-4-methoxy-1-butene；4-(p-bromophenyl)-4-methoxy-1-butene
• CAS: 114095-76-0
• 化学式: C₁₁H₁₃BrO
• 分子量: 241.128
• InChiKey: UEYBWABRVPMRFU-UHFFFAOYSA-N

物化性质

• 沸点：
  271.0±28.0 °C(Predicted)
• 密度：
  1.267±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1-bromo-4-(1-methoxy-but-3-enyl)benzene 在 CuCN 作用下， 以 various solvent(s) 为溶剂， 反应 10.0h， 以26%的产率得到4-(4-cyanophenyl)-4-methoxy-1-butene
  参考文献：
  名称：

  Arylcyclopropane photochemistry. Unusual aromatic substituent effects on the photochemical rearrangement of (2-arylcyclopropyl)methyl acetates to 1-arylhomoallyl acetates

  摘要：

  DOI：

  10.1021/ja00219a040
• 作为产物：
  描述：

  对溴苯甲醛 在 对甲苯磺酸 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 2.75h， 生成 1-bromo-4-(1-methoxy-but-3-enyl)benzene
  参考文献：
  名称：

  Mesoporous aluminosilicate-catalyzed allylation of carbonyl compounds and acetals

  摘要：

  A mesoporous aluminosilicate (Al-MCM-41) was found to be an effective heterogeneous catalyst for the reaction of both carbonyl compounds and acetals with allylsilanes to afford the corresponding homoallyl silyl ethers and homoallyl alkyl ethers, respectively. Both the mesoporous structure and the presence of aluminum moiety were indispensable for the high catalytic activity of Al-MCM-41. Moreover, Al-MCM-41 could catalyze the reaction of acetals chemoselectively in the presence of the corresponding carbonyl compounds. The solid acid catalyst Al-MCM-41 could be recovered easily by filtration and could be reused three times without a significant loss of catalytic activity. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.01.055

文献信息

• Unusual Carbon−Carbon Bond Formations between Allylboronates and Acetals or Ketals Catalyzed by a Peculiar Indium(I) Lewis Acid
  作者：Uwe Schneider、Hai T. Dao、Shu̅ Kobayashi

  DOI：10.1021/ol100450s

  日期：2010.6.4

  mechanism is proposed in which a single InI center acts as a dual catalyst to activate both reagents sequentially. Contrary to the classic γ-selectivity of allylsilanes (Hosomi−Sakurai reaction), this InI-catalyzed borono variant displays distinct α-selectivity. Substrate scope and functional group tolerance proved to be excellent.

  在I OTf中，已发现它是有效的路易斯酸催化剂，用于用烯丙基硼酸酯对乙缩醛或缩酮进行前所未有的亲核取代。提出了一种超金属化S N 1机制，其中单个In I中心充当双重催化剂，以依次激活两种试剂。与烯丙基硅烷的经典γ选择性（Hosomi-Sakurai反应）相反，此In I催化的硼烷变体表现出独特的α选择性。底物范围和官能团耐受性被证明是极好的。
• Catalytic Use of Elemental Gallium for Carbon–Carbon Bond Formation
  作者：Bo Qin、Uwe Schneider

  DOI：10.1021/jacs.6b06767

  日期：2016.10.12

  The first catalytic use of Ga(0) in organic synthesis has been developed by using a Ag(I) cocatalyst, crownether ligation, and ultrasonic activation. Ga(I)-catalyzed C-C bond formations between allyl or allenyl boronic esters and acetals, ketals, or aminals have proceeded in high yields with essentially complete regio- and chemoselectivity. NMR spectroscopic analyses have revealed novel transient Ga(I)

  Ga(0) 在有机合成中的首次催化应用是通过使用 Ag(I) 助催化剂、冠醚连接和超声活化开发的。Ga(I) 催化的烯丙基或丙二烯基硼酸酯与缩醛、缩酮或胺缩醛之间的 CC 键形成以高产率进行，具有基本上完全的区域选择性和化学选择性。核磁共振光谱分析揭示了新的瞬态 Ga(I) 催化物质，分别通过 Ga(0) 和 B-Ga 金属转移的部分氧化原位形成。已经证明了不对称 Ga(I) 催化的可能性。
• Iron(III) Chloride-Catalyzed Convenient One-Pot Synthesis of Homoallyl Benzyl Ethers Starting from Aldehydes
  作者：Tsutomu Watahiki、Yusuke Akabane、Seiji Mori、Takeshi Oriyama

  DOI：10.1021/ol035019w

  日期：2003.8.1

  Iron(III) chloride-catalyzed effective allylation reactions of acetals with allyltrimethylsilane proceeded smoothly in high to excellent yields. In addition, this method could be applied to the one-pot synthesis of homoallyl benzyl ethers by a combination of dibenzyl acetalization of aldehydes and consecutive allylation of dibenzyl acetals.

  [反应：见正文]乙二醛与烯丙基三甲基硅烷的氯化铁催化的有效烯丙基化反应以高收率顺利进行。另外，该方法可以通过醛的二苄基乙缩醛化和二苄基乙缩醛的连续烯丙基化的组合而用于一锅合成高烯丙基苄基醚。
• Scandium Triflate Catalyzed Allylation of Acetals and <i>gem</i>-Diacetates: A Facile Synthesis of Homoallyl Ethers and Acetates
  作者：Jhillu S. Yadav、Basi V. Subba Reddy、P. Srihari

  DOI：10.1055/s-2001-13379

  日期：——

  Scandium triflate catalyzes efficiently the allylation reactions of acetals and gem-diacetates with allyltrimethylsilane at ambient temperature to afford the corresponding homoallyl ethers and acetates in high yields. Also it is found to be effective for the direct formation of homoallyl ethers from aldehydes and allylsilane in presence of trimethylorthoformate.

  三氟甲磺酸钪在环境温度下有效催化缩醛和偕二乙酸酯与烯丙基三甲基硅烷的烯丙基化反应，以高收率提供相应的均烯丙基醚和乙酸酯。还发现它对于在原甲酸三甲酯存在下由醛和烯丙基硅烷直接形成均烯丙基醚是有效的。
• Efficient Brønsted Acid Catalyzed Hosomi-Sakurai Reaction of Acetals
  作者：Benjamin List、Daniela Kampen

  DOI：10.1055/s-2006-950444

  日期：2006.9

  Acetals react with allyltrimethylsilane in the presence of a catalytic amount of sulfonic acids to give the corresponding homoallylic ethers in high yields. The scope of the reaction is broad and both aromatic as well as aliphatic acetals can readily be used.

  在一定量磺酸的催化下，乙缩醛与烯丙基三甲基硅烷发生反应，生成相应的高产率均烯丙基醚。该反应的范围很广，芳香族和脂肪族乙缩醛都可以很容易地使用。