Diethyl 2-(2-chloroethyl)-2-prop-2-enylpropanedioate | 174619-41-1

• 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: Diethyl 2-(2-chloroethyl)-2-prop-2-enylpropanedioate
• CAS: 174619-41-1
• 化学式: C₁₂H₁₉ClO₄
• 分子量: 262.733
• InChiKey: SZKQTWUSPOJKSB-UHFFFAOYSA-N

物化性质

• 沸点：
  297.5±40.0 °C(Predicted)
• 密度：
  1.094±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  17
• 可旋转键数：
  10
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Diethyl 2-(2-chloroethyl)-2-prop-2-enylpropanedioate 在 Pd₂(MeO-dba)3 potassium phosphate 、 potassium tert-butylate 作用下， 以 N-甲基吡咯烷酮 为溶剂， 反应 16.0h， 以82%的产率得到3-methenyl-cyclopentane-1,1-dicarboxylic acid diethyl ester
  参考文献：
  名称：

  Intramolecular Heck Reactions of Unactivated Alkyl Halides

  摘要：

  A method has been developed for achieving palladium-catalyzed intramolecular Heck reactions of unactivated, beta-hydrogen-containing alkyl bromides and chlorides. The data from a stereochemical investigation are consistent with carbon-carbon bond formation via an alkylpalladium, rather than a radical, intermediate.

  DOI：

  10.1021/ja075245r
• 作为产物：
  描述：

  烯丙基丙二酸二乙酯 、 1-溴-2-氯乙烷 在 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 16.0h， 生成 Diethyl 2-(2-chloroethyl)-2-prop-2-enylpropanedioate
  参考文献：
  名称：

  Unprecedented reactivity in the Morita–Baylis–Hillman reaction; intramolecular α-alkylation of enones using saturated alkyl halides

  摘要：

  sp3杂化亲电试剂，首次在有机介导的森田-贝利斯-希尔曼反应中使用，现已促进了五元和六元环烯酮环化加成产物的形成。

  DOI：

  10.1039/b512665g

文献信息

• The intramolecular Morita–Baylis–Hillman-type alkylation reaction
  作者：John W. Cran、Marie E. Krafft、Kimberly A. Seibert、Thomas F.N. Haxell、James A. Wright、Chitaru Hirosawa、Khalil A. Abboud

  DOI：10.1016/j.tet.2011.09.061

  日期：2011.12

  From the initial development of a homologous Morita–Baylis–Hillman reaction utilizing epoxides as electrophiles, the method was expanded to enable the exclusively organocatalyzed intramolecular allylation of enones and to develop the intramolecular MBH-type alkylation of activated alkenes. We successfully utilized both enones and unsaturated thioesters as the activated alkene component. This work,

  从利用环氧化物作为亲电子试剂的同源Morita-Baylis-Hillman反应的最初开发开始，该方法得到了扩展，可以使烯酮进行有机催化的分子内烯丙基化反应，并开发出分子内的活化烯烃MBH型烷基化反应。我们成功地利用了烯酮和不饱和硫酯作为活化的烯烃组分。使用化学计量的三烷基膦进行的这项工作以高收率得到了一系列功能化的五元和六元碳环。随着烯酮和硫酯的环烷基化，开发了允许使用亚化学计量量的膦催化剂的条件。结果，与使用化学计量的三烷基膦时获得的产率相比，可以有效地形成五元环和六元环，而收率几乎没有损失。我们首次分离出了MBH型中间体​​，该中间体表现出空前的geometry盐和酰基反式几何结构。
• Reductive Cyclization of Unactivated Alkyl Chlorides with Tethered Alkenes under Visible‐Light Photoredox Catalysis
  作者：Miguel Claros、Felix Ungeheuer、Federico Franco、Vlad Martin‐Diaconescu、Alicia Casitas、Julio Lloret‐Fillol

  DOI：10.1002/anie.201812702

  日期：2019.4

  of unactivated alkyl chlorides with tethered alkenes. The cleavage of strong C(sp3)−Cl bonds is mediated by a highly nucleophilic low‐valent cobalt or nickel intermediate generated by visible‐light photoredox reduction employing a copper photosensitizer. The high basicity and multidentate nature of the ligands are key to obtaining efficient metal catalysts for the functionalization of unactivated alkyl

  大量市售的烷基氯的化学惰性阻碍了它们作为化学转化反应物的广泛应用。这项工作提出了一种金属光氧化还原方法，用于实现未活化的烷基氯与束缚烯烃的催化分子内还原环化。强C(sp 3 )−Cl键的断裂是由使用铜光敏剂的可见光光氧化还原还原产生的高度亲核的低价钴或镍中间体介导的。配体的高碱度和多齿性质是获得用于未活化的烷基氯官能化的有效金属催化剂的关键。
• Generation and Mesolysis of PhSeSiR₃]^•-:  Mechanistic Studies by Laser Flash Photolysis and Application for Bimolecular Group Transfer Radical Reactions
  作者：Ganesh Pandey、K. S. Sesha Poleswara Rao、D. K. Palit、J. P. Mittal

  DOI：10.1021/jo972345e

  日期：1998.6.1

  The investigation presented in this paper explores the mechanistic aspects and synthetic potentials of PET promoted reductive activation of selenosilane la to its radical anion la(-.). PET activation of la is achieved through a photosystem comprising a light-absorbing electron-rich aromatic (ERA), such as DMN or DMA, as an electron donor and ascorbic acid as a co-oxidant. The evidence for the ET from excited singlet states of DMN as well as DMA to la is suggested by estimating negative Delta G(et) (-51 and -43.46 kcal mol(-1), respectively) values and nearly diffusion-controlled fluorescence quenching rate constants (k(q)TR) 0.36 x 10(10) M-1 s(-1) and 0.28 x 10(10) M-1 s(-1), respectively, from time-resolved fluorescence quenching study. The transient absorption spectra of DMN.+, DMA(.+), and la(.-) are obtained initially by pulse radiolysis in order to correlate the time-resolved absorption spectral data. Laser flash photolysis studies in the nanosecond time domain have confirmed the generation of la(.-), DMN.+, and DMA(.+), supporting the participation of the triplet state of DMN or DMA in the ET reaction. Mesolytic cleavage of 1a(.-) produced a silyl radical and a phenyl selenide anion. The preparative PET activation of la in acetonitrile in the presence of DMN or DMA leads to the formation of 5 and 6, confirming the fragmentation pattern of la(.-). The overall ET rate constants (K-r(DMN) = 0.99 x 10(10) M-1 s(-1) and k(r)(DMA) = 1.62 x 10(10) M-1 s(-1)) and limiting quantum yields (phi(lim)DMN) = 0.034 and phi(lim)(DMA) = 0.12) are estimated from the inverse plot (1/[la] vs 1/phi(dis)) Obtained by measuring the dependence of photodissociation quantum yields of la at its maximum concentration in the presence of DMN or DMA. Silicon-centered radical species generated from the mesolysis of la(.-) are utilized for initiating a radical reaction by the abstraction of halogen atom from -C-X (X = Cl, Br) bonds, while PhSe- terminates the radical sequences via PhSeSePh. This concept is successfully applied for the bimolecular group transfer (BMGT) radical reactions and intermolecular radical chain addition reactions.
• Pandey, Ganesh; Rao, K.S. Sesha Poleshwar, Angewandte Chemie, 1995, vol. 107, # 23/24, p. 2934 - 2935
  作者：Pandey, Ganesh、Rao, K.S. Sesha Poleshwar

  DOI：——

  日期：——
• Unprecedented reactivity in the Morita–Baylis–Hillman reaction; intramolecular α-alkylation of enones using saturated alkyl halides
  作者：Marie E. Krafft、Kimberly A. Seibert、Thomas F. N. Haxell、Chitaru Hirosawa

  DOI：10.1039/b512665g

  日期：——

  sp3 Hybridized electrophiles, never before used in the organomediated Morita–Baylis–Hillman reaction, now facilitate the formation of five- and six-membered enone cycloalkylation products.

  sp3杂化亲电试剂，首次在有机介导的森田-贝利斯-希尔曼反应中使用，现已促进了五元和六元环烯酮环化加成产物的形成。