3-bromo-3-p-tolyl-propenal | 1021942-52-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂醛
• 英文名称: 3-bromo-3-p-tolyl-propenal
• 英文别名: (Z)-3-bromo-3-(4-methylphenyl)prop-2-enal
• CAS: 1021942-52-8
• 化学式: C₁₀H₉BrO
• 分子量: 225.085
• InChiKey: GADYGMIGQDNDPL-POHAHGRESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  3-bromo-3-p-tolyl-propenal 在 四(三苯基膦)钯 、 镍 氢气 、 铜 作用下， 以 乙醇 、 二甲基亚砜 为溶剂， 反应 6.5h， 生成 4-(p-tolyl)quinoline
  参考文献：
  名称：

  New protocols for the synthesis of 3,4-annulated and 4-substituted quinolines from β-bromo-α,β-unsaturated aldehydes and 1-bromo-2-nitrobenzene or 2-bromoacetanilide

  摘要：

  The palladium[0]-mediated Ullmann cross-coupling of readily available beta-bromo-alpha,beta-unsaturated aldehydes of the general form 2 with 1-bromo-2-nitrobenzene (3, X = Br) delivers products, 4, that undergo reductive cyclization to novel quinolines (5) upon exposure to indium in aqueous ammonium chloride or to Raney-nickel in the presence of dihydrogen. Analogous cross-coupling of 2-bromoacetanilide (6) with 2 affords products of type 7 that undergo in situ and K2CO3-mediated cyclization to give the same types of quinolines (5). (C) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2007.03.078
• 作为产物：
  描述：

  3-dimethylamino-1-(4-methyl-phenyl)-2-propen-1-one 在 三溴氧磷 、 水 作用下， 以 二氯甲烷 、 四氢呋喃 为溶剂， 反应 2.0h， 以96%的产率得到3-bromo-3-p-tolyl-propenal
  参考文献：
  名称：

  The application of (Z)-3-aryl-3-haloenoic acids to the synthesis of (Z)-5-benzylidene-4-arylpyrrol-2(5H)-ones

  摘要：

  Studies directed at the synthesis of (Z)-5-benzylidene-4-arylpyrrol-2(5H)-ones from (Z)-3-aryl-3-haloenoic acids are described The successful strategy relies on the preparation of (Z)-3-aryl-3-haloenoic acids from acetophenones through the corresponding (Z)-3-aryl-3-haloenals and the conversion of the (Z)-3-aryl-3-haloenoic acids to (Z)-5-benzylidene-4-aryl-5H-furan-2-ones The furanones were subsequently treated with primary amines and dehydrated to the corresponding (Z)-5-benzylidene-4-arylpyrrol-2(5H)-one (C) 2010 Elsevier Ltd All rights reserved

  DOI：

  10.1016/j.tet.2010.09.080

文献信息

• Synthesis of azirines containing aldehyde functionality and their utilization as synthetic tools for five membered oxazoles and isoxazoles
  作者：Sulagna Brahma、Jayanta K. Ray

  DOI：10.1002/jhet.5570450203

  日期：2008.3

  A simple and useful procedure for the synthesis of azirines containing aldehyde functionality from open chain bromo/chloro-aldehydes at room temperature is reported. The scope of the ring expansion reaction of a number of 3-substituted-2-formyl-azirines has been examined using different oraganometallic catalysts and a variety of Lewis acids.

  报道了一种在室温下由开链溴/氯醛合成含醛官能团的叠氮基的简单有用的方法。已经使用不同的有机金属催化剂和多种路易斯酸检查了许多3-取代的2-甲酰基-叠氮基的扩环反应的范围。
• Novel Synthetic Approach Toward (±)-β-Cuparenone via Palladium-Catalyzed Tandem Heck Cyclization of 1-Bromo-5-methyl-1-aryl-hexa-1,5-dien-3-ol Derivatives
  作者：Devalina Ray、Jayanta K. Ray

  DOI：10.1021/ol062418t

  日期：2007.1.1

  A novel and convenient synthetic route toward (+/-)-beta-cuparenone and many other sesquiterpene natural product precursors has been developed via palladium-catalyzed tandem Heck cyclization of 1-bromo-5-methyl-1-aryl-hexa-1,5-dien-3-ols. [reaction: see text].

  通过钯催化的1-溴-5-甲基-1-甲基-1-芳基-hexa-1的串联Heck环化反应，开发了一种新颖且便捷的合成路线，可用于（+/-）-β-cuparenone和许多其他倍半萜天然产物前体。 5-二-3-醇。[反应：请参见文字]。
• Palladium-catalyzed intramolecular 5-endo–trig oxidative Heck cyclization: a facile pathway for the synthesis of some sesquiterpene precursors
  作者：Devalina Ray、Sunanda Paul、Sulagna Brahma、Jayanta. K. Ray

  DOI：10.1016/j.tetlet.2007.09.052

  日期：2007.11

  An efficient and convenient method for the construction of substituted cyclopentenones via palladium-catalyzed intramolecular 5-endo–trig oxidative cyclization has been introduced as a powerful new strategy for the synthesis of sesquiterpenes.

  用于经由取代的环戊烯酮的结构的高效和方便的方法，钯催化的分子内-5-内切- TRIG氧化环已被引入作为倍半萜烯的合成一个强大的新策略。
• Synthesis of functionalized unsymmetrical 1,3-butadiene-3-yne derivatives from β-halo styrene derivatives and their application in the synthesis of trisubstituted pyridines
  作者：Vijayalakshmi Bandi、Veerababurao Kavala、Che-Hao Hsu、Ashok Konala、Bharath Kumar Villuri、Trimurtulu Kotipalli、Chun-Wei Kuo、Ching-Fa Yao

  DOI：10.1039/c7ra07128k

  日期：——

  approach for the synthesis of functionalized unsymmetrical 1,3-butadiene-3-yne derivatives is reported starting from β-halo styrene and phenyl acetylene derivatives in the presence of PdCl2 and CuI catalysts. Functional groups such as aldehyde, cyano and ester groups are well tolerated and afford the desired functionalized dienynes. Further, these 1,3-buta-diene-3-yne derivatives are utilized for the

  据报道，在PdCl 2和CuI催化剂存在下，从β-卤代苯乙烯和苯基乙炔衍生物开始合成官能化的不对称1,3-丁二烯-3-炔衍生物的方法。诸如醛基，氰基和酯基的官能团具有良好的耐受性，并提供所需的官能化二烯。此外，这些1，3-丁二烯-3-炔衍生物被用于合成新的三取代的吡啶衍生物。
• Secondary Amine‐Mediated Domino Reaction for the Synthesis of Substituted Quinolines from Dicyanoalkenes and Enynals
  作者：Yujiro Hayashi、Xiaolei Han、Naoki Mori

  DOI：10.1002/chem.202301093

  日期：2023.7.14

  synthesized from dicyanoalkenes and unsaturated aldehydes via an organocatalyst-mediated domino reaction in excellent yields. Two catalytic system were established including diphenylprolinol silyl ether and di(2-ethyl)hexylamine. As catalyst is the amine and a by-product is only water, this is an environmentally benign reaction.

  通过有机催化剂介导的多米诺骨牌反应，由二氰基烯烃和不饱和醛合成多取代喹啉衍生物，收率优异。建立了二苯基脯氨醇甲硅烷基醚和二(2-乙基)己胺两种催化体系。由于催化剂是胺，副产物仅为水，因此这是一种环境友好的反应。