methyl allylphenylacetate | 14815-73-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: methyl allylphenylacetate
• 英文别名: methyl 2-phenylpent-4-enoate；2-phenyl-pent-4-enoic acid methyl ester
• CAS: 14815-73-7
• 化学式: C₁₂H₁₄O₂
• 分子量: 190.242
• InChiKey: ZMKAEOKVIXEYFF-UHFFFAOYSA-N

物化性质

• 沸点：
  98-104 °C(Press: 0.5 Torr)
• 密度：
  1.014±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  methyl allylphenylacetate 在 硫酸 、 碘 作用下， 以 二甲基亚砜 为溶剂， 反应 0.5h， 以78%的产率得到苯乙酸甲酯
  参考文献：
  名称：

  First Iodine-Catalyzed Deallylation of Reactive Allyl Methylene Esters

  摘要：

  C-Allyl cleavage has been developed using the inexpensive and mild reagent iodine in dimethylsulfoxide. A variety of compounds with active methylene groups were C-deallylated using this reagent. This method is efficient and operationally simple in comparison to the methods using transition-metal complexes. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) to view the free supplemental file.

  DOI：

  10.1080/00397911.2012.682245
• 作为产物：
  描述：

  methyl 2-allyl-2-phenylpent-4-enoate 在 硫酸 、 碘 作用下， 以 二甲基亚砜 为溶剂， 反应 0.5h， 以60%的产率得到methyl allylphenylacetate
  参考文献：
  名称：

  First Iodine-Catalyzed Deallylation of Reactive Allyl Methylene Esters

  摘要：

  C-Allyl cleavage has been developed using the inexpensive and mild reagent iodine in dimethylsulfoxide. A variety of compounds with active methylene groups were C-deallylated using this reagent. This method is efficient and operationally simple in comparison to the methods using transition-metal complexes. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) to view the free supplemental file.

  DOI：

  10.1080/00397911.2012.682245

文献信息

• Development of an O-Vinylation–Ring-Closing Metathesis Strategy to Access 3,3′-3,4-Dihydropyrans
  作者：Anne-Marie Dechert-Schmitt、Shawn Cabral、Daniel Kung

  DOI：10.1055/s-0036-1588615

  日期：——

  Dihydropyrans are common structural motifs that appear in both natural products and pharmaceuticals and are intermediates for the synthesis of tetrahydropyrans. Currently, no reports exist in the literature for the synthesis of 3,3′-differentially disubstituted-3,4-dihydro-2-pyrans. We describe an approach employing abundant esters as starting materials that allows access to these heterocyclic scaffolds

  二氢吡喃是常见的结构基序，出现在天然产物和药物中，是合成四氢吡喃的中间体。目前，文献中没有关于合成 3,3'-差异二取代-3,4-dihydro-2-pyrans 的报道。我们描述了一种使用丰富的酯作为起始材料的方法，该方法允许通过独特的 O-乙烯基化-RCM 序列访问这些杂环支架。
• Synthesis of α-Aryl Esters and Nitriles: Deaminative Coupling of α-Aminoesters and α-Aminoacetonitriles with Arylboronic Acids
  作者：Guojiao Wu、Yifan Deng、Chaoqiang Wu、Yan Zhang、Jianbo Wang

  DOI：10.1002/anie.201406765

  日期：2014.9.22

  Transition‐metal‐free synthesis of α‐aryl esters and nitriles using arylboronic acids with α‐aminoesters and α‐aminoacetonitriles, respectively, as the starting materials has been developed. The reaction represents a rare case of converting C(sp3)N bonds into C(sp3)C(sp2) bonds. The reaction conditions are mild, demonstrate good functional‐group tolerance, and can be scaled up.

  已开发出分别使用芳基硼酸与α-氨基酯和α-氨基乙腈作为原料的无过渡金属合成α-芳基酯和腈的方法。该反应代表了将C（sp 3）N键转换为C（sp 3）C（sp 2）键的罕见情况。反应条件温和，表现出良好的官能团耐受性，并且可以扩大规模。
• Palladium-Catalyzed Carbocyclizations of Unactivated Alkyl Bromides with Alkenes Involving Auto-tandem Catalysis
  作者：Alexander R. O. Venning、Megan R. Kwiatkowski、Joan E. Roque Peña、Brendan C. Lainhart、Akil A. Guruparan、Erik J. Alexanian

  DOI：10.1021/jacs.7b06794

  日期：2017.8.23

  carbocyclization of unactivated alkyl bromides with alkenes is described. This approach uses a commercially available bisphosphine ligand and avoids the use of carbon monoxide atmosphere present in prior studies involving alkyl iodides. Detailed mechanistic studies of the transformation are performed, which are consistent with auto-tandem catalysis involving atom-transfer radical cyclization followed by catalytic

  描述了钯催化未活化烷基溴与烯烃碳环化的通用催化系统的开发。这种方法使用市售的双膦配体，并避免使用先前涉及烷基碘的研究中存在的一氧化碳气氛。对转化进行了详细的机理研究，这与涉及原子转移自由基环化和催化脱卤化氢的自动串联催化一致。这些研究还表明，涉及烷基碘的反应可能通过金属引发而非金属催化的自由基链过程进行。
• Acid-Catalyzed Cyclization of Vinylsilanes Bearing a Hydroxy Group:  A New Method for Stereoselective Synthesis of Disubstituted Tetrahydrofurans¹
  作者：Katsukiyo Miura、Shigeo Okajima、Takeshi Hondo、Takahiro Nakagawa、Tatsuyuki Takahashi、Akira Hosomi

  DOI：10.1021/ja002496q

  日期：2000.11.22

  with a dimethylphenylsilyl group, and (E)-vinylsilanes show much lower reactivity than the corresponding (Z)-isomers. The cyclization proceeds by stereospecific syn addition of the hydroxy group. Vinylsilanes 17, 19, and 21, (Z)-5-silyl-4-penten-1-ols bearing a substituent on the methylene tether, smoothly undergo the acid-catalyzed cyclization to give trans-2,5-, cis-2,4-, and trans-2,3-disubstituted

  在催化量的 TsOH 或 TiCl4 存在下，(Z)-5-甲硅烷基-4-戊烯-1-醇 ((Z)-1) 顺利环化为 2-甲硅烷基甲基取代的四氢呋喃。这种环化作用适用于四氢吡喃环的构建。甲硅烷基和 C-C 双键的几何形状强烈影响环化速率。与二甲基苯基甲硅烷基相比，TBDMS 和苄基二甲基甲硅烷基显着加速了环化，并且 (E)-乙烯基硅烷的反应性比相应的 (Z)-异构体低得多。环化通过羟基的立体有择顺式加成进行。乙烯基硅烷 17、19 和 21，(Z)-5-silyl-4-penten-1-ols 在亚甲基系链上带有取代基，顺利地进行酸催化环化，得到 trans-2,5-,cis-2 ,4-和反式-2,3-二取代四氢呋喃，分别具有中到高的立体选择性。一些环化产物的甲硅烷基可以很容易地转化为具有立体化学保留的羟基。
• <i>syn</i> ‐Selective Michael Reaction of α‐Branched Aryl Acetaldehydes with Nitroolefins Promoted by Squaric Amino Acid Derived Bifunctional Brønsted Bases
  作者：Ane García‐Urricelqui、Abel Cózar、Teresa E. Campano、Antonia Mielgo、Claudio Palomo

  DOI：10.1002/ejoc.202100355

  日期：2021.7.7

  α-Branched aryl acetaldehydes are efficiently activated by a cinchona based squaric acid-derived peptide to provide, upon reaction with nitroolefins, 2,2,3-trisubstituted syn γ-nitroaldehydes with high diastereo- and enantioselectivity.

  α-支链芳基乙醛被金鸡纳基方酸衍生肽有效活化，在与硝基烯烃反应后，提供具有高非对映选择性和对映选择性的2,2,3-三取代的顺γ-硝基醛。