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S-ethyl (E)-4-chlorobut-2-enethioate | 1251535-16-6

中文名称
——
中文别名
——
英文名称
S-ethyl (E)-4-chlorobut-2-enethioate
英文别名
(E)-S-ethyl 4-chlorobut-2-enethioate
S-ethyl (E)-4-chlorobut-2-enethioate化学式
CAS
1251535-16-6
化学式
C6H9ClOS
mdl
——
分子量
164.656
InChiKey
WLAYFDKBSMBLTQ-ONEGZZNKSA-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

物化性质

  • 沸点:
    262.3±19.0 °C(Predicted)
  • 密度:
    1.146±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.9
  • 重原子数:
    9
  • 可旋转键数:
    4
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.5
  • 拓扑面积:
    42.4
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    S-ethyl (E)-4-chlorobut-2-enethioate己基溴化镁copper(l) iodide(±)-2,2 '-二(二-对甲苯基膦)-1,1 '-联萘 作用下, 以 乙醚二氯甲烷甲基叔丁基醚 为溶剂, 反应 6.0h, 以87%的产率得到S-ethyl (1R,2R)-2-hexylcyclopropanecarbothioate
    参考文献:
    名称:
    Copper-Catalyzed Enantioselective Synthesis of trans-1-Alkyl-2-substituted Cyclopropanes via Tandem Conjugate Addition−Intramolecular Enolate Trapping
    摘要:
    Cu-TolBINAP-catalyzed conjugate addition of Grignard reagents to 4-chloro-alpha,beta-unsaturated esters, thioesters, and ketones leads to 4-chloro-3-alkyl-substituted thioesters and ketones in up to 84% yield and up to 96% ee upon protonation of the corresponding enolates at low temperature. Tandem conjugate addition-enolate trapping, however, yields trans-1-alkyl-2-substituted cyclopropanes in up to 92% yield and up to 98% ee. The versatility of this reaction is illustrated by the formation of key intermediates for the formal syntheses of cascarillic acid and grenadamide.
    DOI:
    10.1021/ja105704m
  • 作为产物:
    参考文献:
    名称:
    通过自由基加成-极性环化级联从羧酸合成官能化环丙烷
    摘要:
    在此,我们描述了光氧化还原催化的脱羧自由基加成-极性环化级联方法对功能化环丙烷的开发。脂肪族羧酸和缺电子烯烃之间的自由基-极性交叉反应的还原终止产生了碳负离子中间体,该碳负离子中间体在分子内烷基化中被附加到烯烃底物上的烷基氯拦截。温和的条件利用了现成的有机光催化剂和可见光,被证明适用于多种结构复杂的羧酸和多种氯烷基烯烃,表现出出色的官能团耐受性。
    DOI:
    10.1002/anie.201808598
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文献信息

  • Synthesis of Functionalized Cyclopropanes from Carboxylic Acids by a Radical Addition–Polar Cyclization Cascade
    作者:Chao Shu、Riccardo S. Mega、Björn J. Andreassen、Adam Noble、Varinder K. Aggarwal
    DOI:10.1002/anie.201808598
    日期:2018.11.19
    Herein, we describe the development of a photoredox‐catalyzed decarboxylative radical addition–polar cyclization cascade approach to functionalized cyclopropanes. Reductive termination of radical–polar crossover reactions between aliphatic carboxylic acids and electron‐deficient alkenes yielded carbanion intermediates that were intercepted in intramolecular alkylations with alkyl chlorides appended
    在此,我们描述了光氧化还原催化的脱羧自由基加成-极性环化级联方法对功能化环丙烷的开发。脂肪族羧酸和缺电子烯烃之间的自由基-极性交叉反应的还原终止产生了碳负离子中间体,该碳负离子中间体在分子内烷基化中被附加到烯烃底物上的烷基氯拦截。温和的条件利用了现成的有机光催化剂和可见光,被证明适用于多种结构复杂的羧酸和多种氯烷基烯烃,表现出出色的官能团耐受性。
  • Copper-Catalyzed Enantioselective Synthesis of <i>trans</i>-1-Alkyl-2-substituted Cyclopropanes via Tandem Conjugate Addition−Intramolecular Enolate Trapping
    作者:Tim den Hartog、Alena Rudolph、Beatriz Maciá、Adriaan J. Minnaard、Ben L. Feringa
    DOI:10.1021/ja105704m
    日期:2010.10.20
    Cu-TolBINAP-catalyzed conjugate addition of Grignard reagents to 4-chloro-alpha,beta-unsaturated esters, thioesters, and ketones leads to 4-chloro-3-alkyl-substituted thioesters and ketones in up to 84% yield and up to 96% ee upon protonation of the corresponding enolates at low temperature. Tandem conjugate addition-enolate trapping, however, yields trans-1-alkyl-2-substituted cyclopropanes in up to 92% yield and up to 98% ee. The versatility of this reaction is illustrated by the formation of key intermediates for the formal syntheses of cascarillic acid and grenadamide.
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