m-Methyl-cinnamylbromid | 54636-68-9

• 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: m-Methyl-cinnamylbromid
• 英文别名: 3-bromo-1-m-tolyl-propene；3-Brom-1-m-tolyl-propen；m-Methylcinnamyl bromide；1-(3-bromoprop-1-enyl)-3-methylbenzene
• CAS: 54636-68-9
• 化学式: C₁₀H₁₁Br
• 分子量: 211.101
• InChiKey: HSRUIACOXLDFHX-UHFFFAOYSA-N

物化性质

• 沸点：
  257.9±9.0 °C(Predicted)
• 密度：
  1.320±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  11
• 可旋转键数：
  2
• 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：

  m-Methyl-cinnamylbromid 在 sodium hydride 、 sodium bromide 作用下， 以 N,N-二甲基乙酰胺 、 mineral oil 为溶剂， 反应 2.67h， 生成
  参考文献：
  名称：

  回收废盐作为试剂：α-氟代酯和砜的一锅法取代/ Krapcho反应序列

  摘要：

  据报道，“一锅法”串联取代/ Krapcho反应用于α-氟化酯和砜的简便合成，该反应利用在取代步骤中形成的副产物盐作为必不可少的试剂来促进Krapcho反应步骤。这代表了第一个可持续的串联反应，该反应内部循环了上游步骤中形成的废盐，作为下游步骤的试剂。

  DOI：

  10.1021/acs.orglett.5b00072
• 作为产物：
  描述：

  3-(3-methylphenyl)prop-2-en-1-al 在 sodium tetrahydroborate 、 三溴化磷 作用下， 以 甲醇 、 乙醚 为溶剂， 反应 0.5h， 生成 m-Methyl-cinnamylbromid
  参考文献：
  名称：

  Discovery of Potent Benzofuran-Derived Diapophytoene Desaturase (CrtN) Inhibitors with Enhanced Oral Bioavailability for the Treatment of Methicillin-Resistant Staphylococcus aureus (MRSA) Infections

  摘要：

  Blocking the staphyloxanthin biosynthesis process has emerged as a new promising antivirulence strategy. Previously, we first revealed that CrtN is a druggable target against infections caused by pigmented Staphylococcus aureus (S. aureus) and that naftifine was an effective CrtN inhibitor. Here, we identify a new type of benzofuran-derived CrtN inhibitor with submicromolar IC50 values that is based on the naftifine scaffold. The most potent analog, 5m, inhibits the pigment production of S. aureus Newman and three MRSA strains, with IC50 values of 0.38-5.45 nM, without any impact on the survival of four strains (up to 200 mu M). Notably, compound 5m (1 mu M) could significantly sensitize four strains to immune clearance and could effectively attenuate the virulence of three strains in vivo. Moreover, 5m was determined to be a weak antifungal reagent (MIC > 16 mu g/mL). Combined with good oral bioavailability (F = 42.2%) and excellent safety profiles, these data demonstrate that 5m may be a good candidate for the treatment of MRSA infections.

  DOI：

  10.1021/acs.jmedchem.5b01984

文献信息

• Olefin Oxyamination with Unfunctionalized <i>N</i> ‐Alkylanilines
  作者：Shuang Gao、Meike Niggemann

  DOI：10.1002/adsc.201801407

  日期：2019.4

  N‐Alkylanilines have rarely been used in oxyamination reactions, due to the normally necessary pre‐functionalization of the N‐atom. Also, the formation of aminium radical cations (ARCs) of anilines bearing alkyl substituents is plagued by the ARC's tendency to instantaneously convert to α‐amino radicals or iminium ions. We present a readily available reagent combination that addresses both challenges

  由于通常需要对N原子进行预官能化，因此N烷基苯胺很少用于氧化胺化反应。同样，带有烷基取代基的苯胺的铝自由基阳离子（ARC）的形成也受到ARC立即转化为α-氨基自由基或亚胺离子的趋势的困扰。我们提出了一种既可解决上述两个难题的现成试剂组合，又可通过ARC将N-烷基苯胺进行氧化胺化，作为关键的反应中间体和出色的非对映选择性。
• Copper-Catalyzed Nucleophilic Trifluoromethylation of Allylic Halides: A Simple Approach to Allylic Trifluoromethylation
  作者：Yoshihiro Miyake、Shin-ichi Ota、Yoshiaki Nishibayashi

  DOI：10.1002/chem.201202853

  日期：2012.10.15

  Trifluoromethylation: The treatment of allylic halides with trifluoromethyltrimethylsilane in the presence of a catalytic amount of copper(I) thiophene‐2‐carboxylate (CuTC) gives the corresponding allylic trifluoromethylation products in good to high yields and with complete regioselectivity (see scheme). The use of THF as a solvent is crucial for obtaining good yields of product.

  三氟甲基化：在催化量的噻吩-2-羧酸铜（I）的存在下，用三氟甲基三甲基硅烷处理烯丙基卤化物可得到相应的烯丙基三氟甲基化产物，产率高至高且具有完全的区域选择性（参见方案）。使用THF作为溶剂对于获得良好的产物收率至关重要。
• Arene Trifunctionalization with Highly Fused Ring Systems through a Domino Aryne Nucleophilic and Diels–Alder Cascade
  作者：Jia He、Zizi Jia、Hongcheng Tan、Xiaohua Luo、Dachuan Qiu、Jiarong Shi、Hai Xu、Yang Li

  DOI：10.1002/anie.201911730

  日期：2019.12.16

  A convenient and efficient domino aryne process was developed under transition-metal-free conditions to generate a range of tetra- and pentacyclic ring systems. This transformation was realized via a 1,2-benzdiyne through a nucleophilic and Diels-Alder reaction cascade using styrene as the diene moiety. Three new chemical bonds, namely one C-N and two C-C bonds, and two benzofused rings could be constructed

  在无过渡金属的条件下，开发了一种方便有效的多米诺烷工艺，以生成一系列四环和五环体系。该转化是通过1，2-苯并二炔通过使用苯乙烯作为二烯部分的亲核和Diels-Alder反应级联实现的。可以同时构建三个新的化学键，即一个CN和两个CC键，以及两个苯并稠合环，这是通过在1,2-芳烃和2,3-芳烃阶段进行独特的化学选择性控制而实现的。此外，对多米诺骨牌烷前体和控制非对映选择性进行了深入研究。
• Highly enantioselective copper-catalyzed allylic alkylation with atropos phosphoramidites bearing a D2-symmetric biphenyl backbone
  作者：Fang Fang、Hui Zhang、Fang Xie、Guoqiang Yang、Wanbin Zhang

  DOI：10.1016/j.tet.2010.03.031

  日期：2010.5

  biphenyl phosphoramidites bearing a D2-symmetric biphenyl backbone was prepared and applied as chiral ligands in the copper-catalyzed allylic alkylation with Grignard reagent. The alkylation products were obtained in quantitative yields with high regioselectivities up to 94:6 of SN2′/SN2 ratio and enantiomeric excesses up to 91.1% for SN2′ products. The unique D2-symmetric backbone ligands have the

  制备了一类新型的具有D 2-对称联苯骨架的对映体双桥联苯二亚磷酰胺，并将其用作手性配体，用格氏试剂在铜催化的烯丙基烷基化反应中使用。烷基化产物以定量产率获得，具有高达S N 2'/ S N 2之比的94：6的高区域选择性，并且对于S N 2'产物，对映体过量高达91.1％。独特的D 2-对称主链配体的优点是易于制备，并且其关键中间体可以从不希望的异构体中充分利用。
• Highly Regio- and Enantioselective Hydrogenation of Conjugated α-Substituted Dienoic Acids
  作者：Xian Liu、Song Liu、Quanjun Wang、Gang Zhou、Lin Yao、Qin Ouyang、Ru Jiang、Yu Lan、Weiping Chen

  DOI：10.1021/acs.orglett.0c00915

  日期：2020.4.17

  Highly regio- and enantioselective hydrogenation of conjugated α-substituted dienoic acids was realized for the first time using Trifer–Rh complex, providing a straightforward method for the synthesis of chiral α-substituted γ,δ-unsaturated acids. DFT calculations revealed N+H–O hydrogen bonding interaction is formed to stabilize the transition state and the coordination of 4,5-double bond to Rh(III)

  使用Trifer-Rh配合物首次实现了对共轭α-取代二烯酸的高度区域和对映选择性加氢，为合成手性α-取代的γ，δ-不饱和酸提供了一种简单的方法。DFT计算表明，形成N + H–O氢键相互作用可稳定过渡态，并且4,5-双键与Rh（III）中心的配位将促进还原消除过程。该氢化提供了沙比特利前体的克级合成。