(E)-(4-bromobut-2-en-1-yl)benzene | 40734-75-6

• 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)-(4-bromobut-2-en-1-yl)benzene
• 英文别名: (2E)-1-bromo-4-phenylbut-2-ene；(E)-1-bromo-4-phenyl-2-butene；(E)-1-bromo-4-phenylbut-2-ene；1-bromo-4-phenyl-2-butene；(E)-(4-bromo-2-butenyl)benzene；4-phenylbut-2-enyl bromide；(4-Bromo-but-2-enyl)-benzene；[(E)-4-bromobut-2-enyl]benzene
• CAS: 40734-75-6
• 化学式: C₁₀H₁₁Br
• 分子量: 211.101
• InChiKey: DIVZZNDPQLODQB-SNAWJCMRSA-N

物化性质

• 沸点：
  243.12°C (rough estimate)
• 密度：
  1.2660

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (E)-(4-bromobut-2-en-1-yl)benzene 在 2,6-二甲基吡啶 、 lithium hydroxide 、 正丁基锂 、 双氧水 、 potassium carbonate 、 二异丙胺 、 间氯过氧苯甲酸 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 二氯甲烷 、 水 为溶剂， 反应 38.5h， 生成 (2R,4S,5R)-4,5-di(tert-butyldimethylsilyloxy)-2-(cyclopropylmethyl)-6-phenylhexanoic acid
  参考文献：
  名称：

  Novel small renin inhibitors containing 4,5- or 3,5-dihydroxy-2-substituted-6-phenylhexanamide replacements at the P2P3 sites

  摘要：

  Renin inhibitors containing a 4,5- or a 3,5-dihydroxy-2-substituted-6-phenylhexanamide fragment at the P-2- P-3 Sites have been prepared and evaluated. The four possible diastereomeric diols of the two series of inhibitors were synthesized to determine the optimal configuration of the carbinol centers for these replacements. The most potent inhibitors of each series, 1a and 2c have a molecular weight of only 503 and IC50 values of 23 and 20 nM in a human plasma renin assay at pH 6.0. Their very low aqueous solubility limited their further evaluation. The efficacy of these P-2-P-3 replacements is a result of their ability to maintain the important hydrogen-bonds with the enzyme. Due to conformational differences with the dipeptide, adjustment at the P-2 Side chain was required. These 4,5- and 3,5-dihydroxyhexanamide segments could be seen as novel N-terminal dipeptide replacements. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(98)80011-4
• 作为产物：
  描述：

  烯丙苯 在 Hoveyda-Grubbs catalyst second generation 、 三溴化磷 、 二异丁基氢化铝 作用下， 以 乙醚 、 二氯甲烷 为溶剂， 反应 18.25h， 生成 (E)-(4-bromobut-2-en-1-yl)benzene
  参考文献：
  名称：

  Palladium Catalyzed Cyclizations of Oxime Esters with 1,2-Disubstituted Alkenes: Synthesis of Dihydropyrroles

  摘要：

  Pd-catalyzed cyclizations of oxime esters with 1,2-dialkylated alkenes provide an entry to chiral dihydropyrroles. Substrate and catalyst controlled strategies for selective product formation (vs alternative pyrroles) are outlined.

  DOI：

  10.1021/ol4023112

文献信息

• Radical Aza-Cyclization of α-Imino-oxy Acids for Synthesis of Alkene-Containing <i>N</i>-Heterocycles via Dual Cobaloxime and Photoredox Catalysis
  作者：Jia-Lin Tu、Jia-Li Liu、Wan Tang、Ma Su、Feng Liu

  DOI：10.1021/acs.orglett.0c00224

  日期：2020.2.7

  Nitrogen-containing heterocycles are prevalent in both naturally and synthetically bioactive molecules. We report herein an unprecedented protocol for radical aza-cyclization of α-imino-oxy acids with pendant alkenes via synergistic photoredox and cobaloxime catalysis. With or without alkenes as the intermolecular cross-coupling partners, the transformation provides a variety of corresponding alkene-containing dihydropyrrole

  天然和合成生物活性分子中都普遍存在含氮杂环。我们在本文中报道了一种空前的协议，用于通过协同光氧化还原和钴肟催化的α-亚氨基-氧酸与侧链烯烃的氮杂氮环化。在有或没有烯烃作为分子间交叉偶联伴侣的情况下，转化以令人满意的产率提供了多种相应的含烯烃的二氢吡咯产物。在存在外部烯烃的情况下，串联反应产生具有优异的化学和立体选择性的E-选择性偶联产物。
• [EN] RAS BINDING PEPTIDES AND METHODS OF USE<br/>[FR] PEPTIDES DE LIAISON À RAS ET MÉTHODES D'UTILISATION
  申请人：RA PHARMACEUTICALS INC

  公开号：WO2017181061A1

  公开（公告）日：2017-10-19

  The present invention provides Ras modulators including inhibitors and/or antagonists of Ras, Ras binding, and Ras-dependent cell signaling activity. Also provided are methods of utilizing the Ras modulators as therapeutics.

  本发明提供了Ras调节剂，包括Ras的抑制剂和/或拮抗剂，以及Ras结合和Ras依赖的细胞信号活性。还提供了利用这些Ras调节剂作为治疗药物的方法。
• Ru(II)‐Catalyzed Regioselective Hydroarylative Coupling of Indolines with Internal Alkynes by C−H Activation
  作者：Raziullah、Mohit Kumar、Afsar Ali Khan、Himangsu Sekhar Dutta、Ashfaq Ahmad、Jayanti Vaishnav、Ruchir Kant、Ravi Sankar Ampapathi、Dipankar Koley

  DOI：10.1002/ejoc.202100085

  日期：2021.4.15

  A hydroarylative coupling of internal alkynes with indolines and tetrahydroquinolines has been developed using the bench‐stable and inexpensive ruthenium (II) catalyst. The applicability of this methodology has been demonstrated by the late stage functionalization of natural products, biologically active molecules, and APIs.

  使用稳定且廉价的钌（II）催化剂开发了内部炔烃与二氢吲哚和四氢喹啉的加氢芳基化偶联剂。天然产物，生物活性分子和API的后期功能化已证明了该方法的适用性。
• Trimethyl Phosphite as a Trap for Alkoxy Radicals Formed from the Ring Opening of Oxiranylcarbinyl Radicals. Conversion to Alkenes. Mechanistic Applications to the Study of C−C versus C−O Ring Cleavage
  作者：Bangwei Ding、Wesley G. Bentrude

  DOI：10.1021/ja020761x

  日期：2003.3.1

  and C-C (k(2)) cleavages of intermediate oxiranylcarbinyl radical 2 and their reverse (k(-1), k(-2)). Diversion by (MeO)(3)P of allyloxy radicals (3) from haloepoxides 11 and 12 fulfills a prior prediction that under conditions closer to kinetic control, products of C-O scission, not just those of C-C scission, may result. Thus, for oxiranylcarbinyl radicals from haloepoxides 11, 12, and 13, C-O scission

  亚磷酸三甲酯 (MeO)(3)P 作为有效和选择性陷阱引入环氧乙烷基自由基 (2) 系统中，该系统由卤代环氧化物 8-13 在约 80 摄氏度的热 AIBN/n-Bu(3)SnH 条件下形成最初，在不存在亚磷酸酯的情况下，8-13 向烯丙醇 7 和/或乙烯基醚 5 的转化被定量测量（表 1）。中间体环氧乙烷基 (2)、烯丙氧基 (3) 和乙烯基氧基羰基 (4) 自由基的结构变化涉及 CO (2 --> 3, k(1)) 和 CC (2 --> 4, k(2)) 自由基断裂过程，并且很容易解释形成的产物乙烯基醚 (5) 和烯丙醇 (7) 的量的变化。添加的 (MeO)(3)P 对乙烯基氧羰基自由基 4 呈惰性，并选择性地快速捕获烯丙氧基自由基 3，将其转移到磷酸三甲酯和烯丙基 6。烯丙基 (6) 二聚化或被 n-Bu(3)SnH 捕获以产生烯烃，由卤代环氧化物 8、9 和 13 形成，产率为
• Enantioselective Synthesis of 2-Arylbicyclo[1.1.0]butane Carboxylates
  作者：Changming Qin、Huw M. L. Davies

  DOI：10.1021/ol303217s

  日期：2013.1.18

  catalyst and catalyst loading to form either 2-arylbicyclo[1.1.0]butane carboxylates or cyclohexene derivatives. Both products are produced in a highly diastereoselective manner, with 2-arylbicyclo[1.1.0]butane carboxylates preferentially formed under low catalyst loadings. When the reaction is catalyzed by Rh2(R-BTPCP)4, the 2-arylbicyclo[1.1.0]butane carboxylates are generated with high levels of asymmetric

  的铑催化的反应2-重氮-5- arylpent -4- enoates可以通过催化剂和催化剂负载的适当选择被控制以形成任一2-芳基双环[1.1.0]丁烷羧酸或环己烯衍生物。两种产物都以高度非对映选择性的方式生产，其中2-芳基双环[1.1.0]丁烷羧酸酯在低催化剂负载下优先形成。当反应被Rh 2（R -BTPCP）4催化时，生成的2-芳基双环[1.1.0]丁烷羧酸盐具有很高的不对称诱导度（70-94％ee）。