2-Benzoyl-3-(3-bromophenyl)prop-2-enenitrile | 340217-67-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 英文名称: 2-Benzoyl-3-(3-bromophenyl)prop-2-enenitrile
• CAS: 340217-67-6
• 化学式: C₁₆H₁₀BrNO
• 分子量: 312.166
• InChiKey: GQISNJNSOANZHL-UHFFFAOYSA-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：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  40.9
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-Benzoyl-3-(3-bromophenyl)prop-2-enenitrile 、 丁烯酮 在 三乙烯二胺 作用下， 以 乙腈 为溶剂， 反应 4.0h， 以92%的产率得到3-acetyl-4-(3-bromophenyl)-6-phenyl-3,4-dihydro-2H-pyran-5-carbonitrile
  参考文献：
  名称：

  Tandem cross-Rauhut–Currier/cyclization reactions of activated alkenes to give densely functionalized 3,4-dihydropyrans

  摘要：

  A novel tandem cross-Rauhut-Currier/cyclization reaction between alpha,beta-unsaturated ketones was developed. Using DABCO (20 mol %) as the catalyst, a series of densely functionalized 3,4-dihydropyrans were obtained in excellent yields and stereoselectivities (up to 98% yield, >99:1 dr). A tentative catalytic cycle was proposed with key intermediates confirmed by ESIMS studies. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.01.036
• 作为产物：
  描述：

  苯甲酸乙酯 在 哌啶 、 sodium hydride 、 溶剂黄146 作用下， 以 甲苯 为溶剂， 反应 19.0h， 生成 2-Benzoyl-3-(3-bromophenyl)prop-2-enenitrile
  参考文献：
  名称：

  Tandem cross-Rauhut–Currier/cyclization reactions of activated alkenes to give densely functionalized 3,4-dihydropyrans

  摘要：

  A novel tandem cross-Rauhut-Currier/cyclization reaction between alpha,beta-unsaturated ketones was developed. Using DABCO (20 mol %) as the catalyst, a series of densely functionalized 3,4-dihydropyrans were obtained in excellent yields and stereoselectivities (up to 98% yield, >99:1 dr). A tentative catalytic cycle was proposed with key intermediates confirmed by ESIMS studies. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.01.036

文献信息

• Construction of CF₃-Functionalized Fully Substituted Benzonitriles through Rauhut–Currier Reaction Initiated [3 + 3] Benzannulation
  作者：Qing Mao、Qian Zhao、Mu-Ze Li、Rui Qin、Meng-Lan Luo、Jing Xue、Ben-Hong Chen、Hai-Jun Leng、Cheng Peng、Gu Zhan、Bo Han

  DOI：10.1021/acs.joc.1c01631

  日期：2021.11.5

  Though numerous cyanation reactions have been developed for the synthesis of benzonitriles, the construction of valuable fully substituted benzonitriles is still a challenging task. Herein, we reported a tertiary amine-catalyzed [3 + 3]-benzannulation for the green synthesis of CF3-functionalized fully substituted benzonitriles. This strategy features exclusive chemoselectivity, high atom-economy,

  尽管已经开发了许多用于合成苯甲腈的氰化反应，但构建有价值的完全取代的苯甲腈仍然是一项具有挑战性的任务。在此，我们报道了一种叔胺催化的 [3 + 3] -苄基化反应，用于绿色合成 CF 3官能化的完全取代的苄腈。该策略具有独特的化学选择性、高原子经济性和良好的阶梯经济性，以及环境友好的试剂和温和的条件。使用这种方法可以快速构建独特的三苯基取代的二氰基苯甲酸酯产品。成功的放大合成证明了该反应的实用性和可靠性。一项机理研究表明 [3 + 3]-benzannulation 是由分子间 Rauhut-Currier 反应引发的。
• Substituent‐Controlled Divergent Cascade Cycloaddition Reactions of Chalcones and Arylalkynols: Access to Spiroketals and <i>Oxa</i> ‐Bridged Fused Heterocycles
  作者：Tianlong Zeng、Jingyang Kong、Hongkai Wang、Lingyan Liu、Weixing Chang、Jing Li

  DOI：10.1002/adsc.202100523

  日期：2021.8.13

  Herein, we report substituent-controlled divergent cascade cycloaddition reactions of chalcones and arylalkynols in the presence of PtI2. Depending on the substituent on the chalcone, either spiroketals or oxa-bridged fused heterocycles could be obtained in the ranges of 86–97% and 87–95% yields under identical reaction conditions. Control experiments were carried out to elucidate the origin of the

  在此，我们报告了在 PtI 2存在下查耳酮和芳基炔醇的取代基控制的发散级联环加成反应。根据查耳酮上的取代基，在相同的反应条件下，可以以 86-97% 和 87-95% 的产率获得螺缩酮或氧杂桥连的稠合杂环。进行对照实验以阐明高化学选择性的起源。这些为合成各种结构复杂的含氧杂环提供了一种方法。
• Organocatalytic Asymmetric [4+2] Cycloaddition of 1-Acetylcyclopentene and 1-Acetylcyclohexene for the Synthesis of Fused Carbocycles
  作者：Utpal Nath、Subhas Chandra Pan

  DOI：10.1002/ejoc.201701238

  日期：2017.11.24

  The first organocatalytic asymmetric [4+2] cycloaddition reaction employing 1-acetylcyclopentene and 1-acetylcyclohexene is described. Enones having cyano group are used as the dienophile partner in this method. The reaction provides a useful practical route for the synthesis of bicyclic fused carbocycles having four contiguous stereocentres.

  描述了使用 1-乙酰环戊烯和 1-乙酰环己烯的第一个有机催化不对称 [4+2] 环加成反应。在该方法中使用具有氰基的烯酮作为亲二烯体伙伴。该反应为合成具有四个连续立体中心的双环稠合碳环提供了一条有用的实用途径。
• Dienamine-Mediated Asymmetric Inverse-Electron-Demand Hetero-Diels-Alder Reaction of Linear Deconjugated Enones: Diversity-Oriented Synthesis of 3,4-Dihydropyrans
  作者：Rajendra Maity、Subhas Chandra Pan

  DOI：10.1002/ejoc.201601575

  日期：2017.1.26

  The dienamine‐mediated inverse‐electron‐demand hetero‐Diels–Alder reaction of deconjugated enones having α‐CH groups and electron‐deficient oxadienes with a cyano group allows the efficient and enantioselective synthesis of 2,4‐stereogenic 3,4‐dihydropyrans. With a primary amine and benzoic acid, high yields and excellent enantioselectivities are obtained for a range of 3,4‐dihydropyrans.

  具有α-CH基团的共轭烯酮和具有氰基的缺电子二氧烯的二烯胺介导的逆电子需求异狄尔斯-阿尔德反应可实现2,4-立体异构3,4-二氢吡喃的高效和对映选择性合成。使用伯胺和苯甲酸，在3,4-二氢吡喃范围内可获得高收率和出色的对映选择性。
• Substrate-controlled switchable asymmetric annulations to access polyheterocyclic skeletons
  作者：Kai-Kai Wang、Pan Wang、Qin Ouyang、Wei Du、Ying-Chun Chen

  DOI：10.1039/c6cc06148f

  日期：——

  domino process from Morita-Baylis-Hillman carbonates of isatins and acrylate and [small alpha]-cyano-[small alpha],[small beta]-unsaturated ketones to deliver highly enantioenriched tetrahydrofuro[2',3':4,5]pyrano[2,3-b]indoles was disclosed catalysed by cinchona-derived tertiary amines, involving [small alpha]-regioselective cyclopropanation, ring-opening,...

  靛红和丙烯酸的Morita-Baylis-Hillman碳酸盐和[小α]-氰基-[小α]，[小β]-不饱和酮的出乎意料的多米诺法，可以提供高度对映体富集的四氢呋喃[2'，3'：4,5公开了由金鸡纳衍生的叔胺催化的]吡喃并[2,3-b]吲哚，涉及[小α]-区域选择性环丙烷化，开环，...。