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4-methyl-penta-2,3-dienoic acid ethyl ester | 24642-02-2

中文名称
——
中文别名
——
英文名称
4-methyl-penta-2,3-dienoic acid ethyl ester
英文别名
(+/-)-ethyl 4-methylpenta-2,3-dienoate;Ethyl 4-methylpenta-2,3-dienoate
4-methyl-penta-2,3-dienoic acid ethyl ester化学式
CAS
24642-02-2
化学式
C8H12O2
mdl
——
分子量
140.182
InChiKey
GJMYIYGSKQNWBO-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    1.5
  • 重原子数:
    10
  • 可旋转键数:
    3
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.5
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

SDS

SDS:b25e7923b14ab419ff29eece74ba73a7
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反应信息

  • 作为反应物:
    描述:
    4-methyl-penta-2,3-dienoic acid ethyl ester 作用下, 以 乙腈 为溶剂, 反应 12.0h, 以60%的产率得到4-iodo-5,5-dimethylfuran-2(5H)-one
    参考文献:
    名称:
    通过 2,3-烯丙酸酯与 I2 的碘内酯化反应有效制备 4-Iodofuran-2(5H)-ones
    摘要:
    通过羰基氧原子直接参与区域选择性亲电加成,在 MeCN 水溶液中,通过 2,3-烯丙酸乙酯与 I2 的轻松碘内酯化,以中等至高产率制备 4-Iodofuran-2(5H)-ones。丙二烯部分。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
    DOI:
    10.1002/ejoc.200500296
  • 作为产物:
    描述:
    ethyl 3-ethoxycarbonyl-1,1-dimethylpropargylcarbonate 在 二异丙氧基二氯化钛 magnesium 作用下, 以 乙醚 为溶剂, 生成 4-methyl-penta-2,3-dienoic acid ethyl ester
    参考文献:
    名称:
    A new coupling reaction of propargyl carbonates mediated by Ti(O i Pr) 2 Cl 2 /Mg
    摘要:
    A new homocoupling reaction of 1,1-disubstituted propargyl carbonates or 1-monosubstituted propargyl carbonates, mediated by Ti(OiPr)(2)Cl-2/Mg in ether at 0degreesC, was found to Corm symmetric 1,5-hexadiynes and 1-allenyl-5-ynes in moderate to high yields in various ratios. (C) 2002 Elsevier Science Ltd. All rights reserved.
    DOI:
    10.1016/s0040-4039(01)02381-4
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文献信息

  • Selective Alkenylation and Hydroalkenylation of Enol Phosphates through Direct CH Functionalization
    作者:Xu‐Hong Hu、Xiao‐Fei Yang、Teck‐Peng Loh
    DOI:10.1002/anie.201506437
    日期:2015.12.14
    Rh‐catalyzed direct CH functionalization reaction of enol phosphates was developed. The method is applicable to a variety of coupling partners, including activated alkenes, alkynes, and allenes, and leads to the formation of various valuable alkenylated and hydroalkenylated enol phosphates through the action of the phosphate directing group. The versatility and utility of the coupling products were demonstrated
    开发了一种高效且选择性的Rh催化的磷酸直接CH官能化反应。该方法适用于多种偶合伙伴,包括活化的烃,炔烃丙二烯,并通过磷酸导向基团的作用导致形成各种有价值的基化和基化的磷酸。通过进一步改造成合成有用的构件,证明了偶联产品的多功能性和实用性。
  • Visible‐Light‐Promoted Regio‐ and Stereoselective Oxyalkenyl‐ation of Phosphinyl Allenes
    作者:Xue Sun、Teng Liu、Yan‐Tong Yang、Yue‐Jie Gu、Yu‐Wei Liu、Yi‐Gang Ji、Kai Luo、Jie Zhu、Lei Wu
    DOI:10.1002/adsc.202000214
    日期:2020.7.16
    time. This protocol, merging visible light photoredox and palladium catalysis, provides a direct approach to conjugated tertiary allylic alcohol derivatives with broad functional group tolerance in moderate to excellent yields. Mechanistic studies suggest that, although two possible pathways exist in the transformation, radical oxyalkenylation promoted by visible light photoredox takes over the major
    首次揭示了次膦基丙基的高度区域和立体选择性的基化。该协议,结合了可见光的光化还原和催化作用,提供了一种直接的方法,以中等到极好的收率,具有宽泛的官能团耐受性的共轭叔丙基醇衍生物。机理研究表明,尽管转化中存在两个可能的途径,但可见光光化还原促进的自由基基化作用占据了主要途径。
  • Regioselective Rh-Catalyzed Hydroformylation of 1,1,3-Trisubstituted Allenes Using BisDiazaPhos Ligand
    作者:Josephine Eshon、Clark R. Landis、Jennifer M. Schomaker
    DOI:10.1021/acs.joc.7b01140
    日期:2017.9.15
    The efficient hydroformylation of 1,1,3-trisubstituted allenes is accomplished with low loadings of a Rh catalyst supported by a BisDiazaPhos (BDP) ligand. The ligand identity is key to achieving high regioselectivity, while the mild reaction conditions minimize competing isomerization and hydrogenation to produce β,γ-unsaturated aldehydes and their derivatives in excellent yields.
    1,2,1,3-三取代的有效加甲酰基化反应是由低负载的BisDiazaPhos(BDP配体负载的Rh催化剂完成的。配体的同一性是实现高区域选择性的关键,而温和的反应条件可最大程度地减少竞争性异构化和化反应,从而以极佳的收率生产β,γ-不饱和醛及其衍生物
  • Bifunctionalized Allenes. Part VIII. An Efficient and Varied Method for the Synthesis of 2-Sulfonylated Alka-2,3-Dienoates
    作者:Ivaylo K. Ivanov、Valerij Ch. Christov
    DOI:10.1080/10426507.2012.718299
    日期:2013.7.1
    Abstract An efficient and varied method for the synthesis of 2-sulfonylated alka-2,3-dienoates by intermediate formation of allenecarboxylates, allenyl sulfones, and propargyl sulfinates using the relatively high acidity of the hydrogen atom at the allenic C-1 atom and the [2,3]-sigmatropic rearrangement is described. Supplemental materials are available for this article. Go to the publisher's online
    摘要 通过使用丙二烯 C-1 原子上相对高的原子酸度和丙二烯基亚磺酸中间体形成丙二烯羧酸丙二烯基砜和炔丙基亚磺酸,合成 2-磺酰化的 2,3-二酸烷基的一种有效且多样的方法。描述了 [2,3]-σ 重排。补充材料可用于本文。转至出版商在线版的及相关元素,查看免费的补充文件。图形概要
  • Palladium-Catalyzed Cocyclotrimerization of Allenes with Arynes: Selective Synthesis of Phenanthrenes
    作者:Yi-Lin Liu、Yun Liang、Shao-Feng Pi、Xiao-Cheng Huang、Jin-Heng Li
    DOI:10.1021/jo900117c
    日期:2009.4.17
    Palladium-catalyzed cocyclotrimerization of allenes with arynes has been developed for selectively synthesizing phenanthrenes. In the presence of [(allyl)PdCl]2 and P(o-tol)3, a variety of allenes, including internal and terminal allenes, underwent the cocyclotrimerization with arynes to afford the corresponding phenanthrenes in moderate to good yields. The results showed the selectivity of the reaction
    已经开发了催化的丙二烯芳烃的共环三聚用于选择性合成。在[(丙基)PdCl] 2和P(邻甲苯基)3的存在下,包括内部和末端Allenes在内的各种Allenes与芳烃进行了共环三聚反应,以中等至良好的收率得到了相应的。结果表明基于丙基的反应的选择性。
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