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ethyl 2-oxo-4-(2-thienyl)butenoate | 145784-34-5

中文名称
——
中文别名
——
英文名称
ethyl 2-oxo-4-(2-thienyl)butenoate
英文别名
Ethyl 2-oxo-4-(thiophen-2-yl)but-3-enoate;ethyl 2-oxo-4-thiophen-2-ylbut-3-enoate
ethyl 2-oxo-4-(2-thienyl)butenoate化学式
CAS
145784-34-5
化学式
C10H10O3S
mdl
——
分子量
210.254
InChiKey
MBAWAUOADDFEJE-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):
    2.2
  • 重原子数:
    14
  • 可旋转键数:
    5
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.2
  • 拓扑面积:
    71.6
  • 氢给体数:
    0
  • 氢受体数:
    4

SDS

SDS:8b2d801cc103f08a28a6c43d6e49ce8e
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上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    ethyl 2-oxo-4-(2-thienyl)butenoate 在 C30H30N4O3silica gel 作用下, 以 对二甲苯甲苯 为溶剂, 反应 13.5h, 生成 (S)-ethyl 5-nitro-2-oxo-4-(thiophen-2-yl)pentanoate
    参考文献:
    名称:
    A practical synthesis of optically active δ-nitro-α-ketoesters and 4-cyclohexyl-proline catalyzed by chiral squamides
    摘要:
    Inexpensive and readily available squamides derived from 9-amino-9-deoxyepiquinine or 9-amino-9-deoxyepiquinidine were found to be superior catalysts for the asymmetric conjugate additions of t-butyl nitroacetate to beta,gamma-unsaturated-alpha-ketoesters. After the subsequent decarboxylation with silica gel, a variety of delta-nitro-alpha-ketoesters were obtained in good yields and with excellent enantioselectivities. The products were further transformed into ethyl 4-aryl-prolinate via a cascade nitro reduction and amination. A new synthesis of (2S,4S)-4-cyclohexyl-proline was also developed. A practical synthesis of optically active delta-nitro-alpha-ketoesters and 4-aryl-proline derivatives is described. (c) 2015 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.tetasy.2015.10.009
  • 作为产物:
    描述:
    2-噻吩甲醛乙酰氯 、 potassium hydroxide 作用下, 以 甲醇 为溶剂, 生成 ethyl 2-oxo-4-(2-thienyl)butenoate
    参考文献:
    名称:
    由带有联萘基-脯氨酸杂化配体的 Cu(II) 络合物催化的丙二酸酯对 β,γ-不饱和 α-酮酯的对映选择性迈克尔加成
    摘要:
    手性铜( II )络合物催化丙二酸酯对β,γ-不饱和-α-酮酯的对映选择性迈克尔加成反应,实现了高产率(高达96%)和高ee(高达92%) 。手性配体同时利用了联萘基和脯氨酸部分,并且可以容忍具有不同电子和空间特征的取代基。反应可以在温和的条件下进行,并且可以在不损失产率和对映选择性的情况下实现克级反应。
    DOI:
    10.1039/d2ob02305a
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文献信息

  • Enantioselective organocatalytic Michael-hemiketalization catalyzed by a trans-bifunctional indane thiourea catalyst
    作者:Yaojun Gao、Qiao Ren、Swee-Meng Ang、Jian Wang
    DOI:10.1039/c1ob05404j
    日期:——
    An efficient, convenient and enantioselective Michael-hemiketalization reaction has been developed for the synthesis of naphthoquinones. In this work, a novel trans-bifunctional indane thiourea catalyst has been reported to promote this process to afford high yields (up to 99%) and high to excellent enantiomeric excesses (90–98% ee).
    一种高效、便捷且具有对映选择性的Michael-半缩酮化反应已被开发用于萘醌的合成。本研究中,报道了一种新型反式双功能茚满硫脲催化剂,该催化剂推动了这一过程,实现了高产率(高达99%)及高至优异的对映体过量(90-98% ee)。
  • Tertiary Amine Mediated Tandem Cross-Rauhut-Currier/Acetalization Reactions: Access to Functionalized Spiro-3,4-Dihydropyrans
    作者:Weijun Yao、Yihua Wu、Gang Wang、Yiping Zhang、Cheng Ma
    DOI:10.1002/anie.200905091
    日期:2009.12.14
    γ‐Proton transfer furnished the highly selective title reaction in which cyclic β‐haloenals 1 react with β,γ‐unsaturated α‐ketoesters 2 to generate functionalized spiro‐3,4‐dihydro‐2H‐pyrans 3 having an α‐quaternary carbon center and an adjacent vinyl halide group in skeleton. DBU=1,8‐diazabicyclo[5.4.0]undec‐7‐ene, Tos=4‐toluenesulfonyl.
    γ-质子传递布置,其中环状β-haloenals高度选择性标题反应1与β,γ不饱和α酮酯反应2来生成官能螺-3,4-二氢-2 ħ -pyrans 3具有α-季碳中心和骨架中相邻的乙烯基卤化物基团。DBU = 1,8-二氮杂双环[5.4.0]十一月-7-烯,Tos = 4-甲苯磺酰基。
  • Construction of 9<i>H</i>-Pyrrolo[1,2-<i>a</i>]indoles by a Copper-Catalyzed Friedel–Crafts Alkylation/Annulation Cascade Reaction
    作者:Yongqing Sun、Yu Qiao、Haiying Zhao、Baoguo Li、Shufeng Chen
    DOI:10.1021/acs.joc.6b02143
    日期:2016.12.2
    Cu(OTf)2-catalyzed Friedel–Crafts alkylation/annulation cascade reaction of substituted indoles with 1,2-dicarbonyl-3-enes has been established. This reaction uses readily available starting materials and is operationally simple, thus representing a practical method for the construction of diverse 9H-pyrrolo[1,2-a]indoles bearing a carbonyl group.
    建立了高效,简明的Cu(OTf)2催化的取代吲哚与1,2-二羰基-3-烯的吲哚的Friedel-Crafts烷基化/环化级联反应。该反应使用容易获得的起始原料并且操作简单,因此代表了用于构建带有羰基的多种9 H-吡咯并[1,2- a ]吲哚的实用方法。
  • Highly Enantioselective Friedel-Crafts Reaction of 4,7-Dihydroindoles with β,γ-Unsaturated α-Keto Esters by Chiral Brønsted Acids
    作者:Mi Zeng、Qiang Kang、Qing-Li He、Shu-Li You
    DOI:10.1002/adsc.200800523
    日期:2008.10.6
    A highly efficient Friedel–Crafts reaction of 4,7-dihydroindoles with β,γ-unsaturated α-keto esters by a chiral N-triflyl phosphoramide was realized, affording the 2-substituted 4,7-dihydroindoles with up to 98% ee for a wide range of substrates. The Friedel–Crafts alkylation together with a subsequent oxidation of the product with p-benzoquinone led to a 2-alkylated indole derivative in 98% ee.
    通过手性N-三氟乙磷酰胺实现了4,7-二氢吲哚与β,γ-不饱和α-酮酸酯的高效弗里德-克来福特反应,得到了2-取代的4,7-二氢吲哚,其ee高达98%。多种基材。Friedel-Crafts烷基化反应以及随后用对苯醌氧化产物的反应,在98%ee中生成了2-烷基化的吲哚衍生物。
  • Asymmetric 1,4‐Addition of Arylboronic Acids to β,γ‐Unsaturated α‐Ketoesters using Heterogeneous Chiral Metal Nanoparticle Systems
    作者:Hiroyuki Miyamura、Tomohiro Yasukawa、Zhiyuan Zhu、Shū Kobayashi
    DOI:10.1002/adsc.201901294
    日期:2020.1.23
    reactions with β,γ‐unsaturated α‐ketoesters are valuable because the resulting chiral ketoester compounds can be converted into various useful species that are often used as chiral building blocks in drug and natural product synthesis. However, β,γ‐unsaturated α‐ketoesters have two reactive points in terms of nucleophilic additions, which will lead to the 1,4‐adduct, the 1,2‐adduct and to the combined
    与β,γ-不饱和α-酮酸酯的不对称1,4加成反应非常有价值,因为所得的手性酮酸酯化合物可以转化为多种有用的物种,通常用作药物和天然产物合成中的手性构造单元。然而,就亲核加成而言,β,γ-不饱和α-酮酸酯具有两个反应点,这将导致1,4-加合物,1,2-加合物以及1,4-和1,2-加在一起加合物。因此,控制这种化学选择性是发展这些转化的重要因素。在这里,我们通过使用具有手性二烯配体并带有仲酰胺部分的异质手性铑纳米粒子系统,开发了不对称的1,4-芳基硼酸加成至β,γ-不饱和α-酮酸酯。新开发的聚二甲基硅烷固定化铑纳米粒子催化剂显示出高活性,高化学选择性和出色的对映选择性,这是该不对称反应的第一个非均相催化体系。回收金属纳米颗粒催化剂并重新使用,而不会损失活性或浸出金属。
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