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甲基2-氧代环丁烷羧酸酯 | 52903-53-4

中文名称
甲基2-氧代环丁烷羧酸酯
中文别名
——
英文名称
Methyl 2-oxocyclobutanecarboxylate
英文别名
2-methoxycarbonyl-1-cyclobutanone;methyl cyclobutane-2-one-1-carboxylate;2-Cyclobutanoncarbonsaeuremethylester;Cyclobutanon-(2)-methylcarboxylat;2-methoxycarbonylcyclobutanone;2-carbomethoxycyclobutanone;carbomethoxycyclobutanone;methyl 2-oxocyclobutane-1-carboxylate
甲基2-氧代环丁烷羧酸酯化学式
CAS
52903-53-4
化学式
C6H8O3
mdl
MFCD08703349
分子量
128.128
InChiKey
GZZDEOHEJZKVPZ-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

物化性质

  • 沸点:
    188.0±33.0 °C(Predicted)
  • 密度:
    1.219±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    0.2
  • 重原子数:
    9
  • 可旋转键数:
    2
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.666
  • 拓扑面积:
    43.4
  • 氢给体数:
    0
  • 氢受体数:
    3

反应信息

点击查看最新优质反应信息

文献信息

  • Synthetic applications of N–N linked heterocycles. Part 16. Reactions between carbanions derived from carbon acids with pK<sub>a</sub>7–14 and N-(2,6-dimethyl-4-oxopyridin-1-yl)pyridinium tetrafluoroborate: synthesis of 4-substituted pyridines, and observation of pyridine ringopening reactions
    作者:Michael P. Sammes、Christopher W. F. Leung、Alan R. Katritzky
    DOI:10.1039/p19810002835
    日期:——
    Carbanions, derived from carbon acids (5) lying in the pKa range 7–14, add regiospecifically to the pyridinium γ-position in N-(2,6-dimethyl-4-oxopyridin-1-yl)pyridinium tetrafluoroborate (4) to yield 1,4-dihydro-adducts (6). While some intermediates could be fragmented successfully to give 4-substituted pyridines (7), others reverted under similar conditions to the carbon acids (5), due apparently
    负碳离子,从碳酸(5)位于在p衍生ķ一个范围7-14,区域专一性添加到吡啶鎓γ位上在Ñ-(2,6-二甲基-4-氧代吡啶-1-基)吡啶鎓四硼酸酯(4),得到1,4-二氢加合物(6)。尽管某些中间体可以成功裂解,得到4-取代的吡啶(7),但显然由于存在痕量,其他中间体在相似条件下还原为碳酸(5)。然而,衍生自丙二腈乙酸乙酯的阴离子会由于在吡啶鎓α位上的侵蚀而产生开环产物(9),而基酯在–30°C时主要产生1,4-加合物,这种情况会恢复在室温下加入到开环化合物中。提供了此异常行为的解释。
  • Synthesis of Benzo[c]azocanones and Indeno[1,2-b]pyrroles from Oxoindanecarboxylates
    作者:Florian Behler、Florian Habecker、Wolfgang Saak、Thorsten Klüner、Jens Christoffers
    DOI:10.1002/ejoc.201100289
    日期:2011.8
    amidated with para-bromoaniline. The molecular structure of the latter was established by X-ray single-crystal analysis. Benzo[c]azocanones exist in two diastereoisomeric conformations, causing double signal sets in the NMR spectra. Slow interconversion between these conformers was proved by EXSY NMR spectroscopy. Moreover, a conformational analysis by DFT calculations revealed the two diastereoisomers
    具有 1,4-二酮基序的 1-氧代-茚满-2-羧酸乙酯介导的与甲胺的扩环反应中得到苯并 [c]azocane-1-one 衍生物——一种八元环内酰胺( 40% 产率)。使用其他伯胺的产率明显较低。杂环产物中的酯官能团可以被皂化得到游离羧酸,其进一步与对溴苯胺酰胺化。后者的分子结构是通过 X 射线单晶分析确定的。苯并 [c] 偶氮卡酮以两种非对映异构构象存在,导致 NMR 光谱中出现双信号集。EXSY 核磁共振光谱证明了这些构象异构体之间的缓慢互变。此外,通过 DFT 计算进行的构象分析表明,这两种非对映异构体是船型构象异构体,通过扭曲构象异构体相互转化。该过程的最大势垒计算为大约 70 kJ/mol。相应的 1-氧代茚满-2-羧酸甲酯与甲胺反应以较低的产率得到苯并[c]偶氮酮。形成螺内酰胺和并[1,2-b]吡咯作为进一步的产物。当使用没有酯功能的茚满酮衍生的 1,4-二酮时,可以在催化的
  • Cycloaddition Reactions of Ketene Diethyl Acetal toward the Synthesis of Cyclobutene Monomers
    作者:Carina S Kniep、Anne B Padias、H.K Hall
    DOI:10.1016/s0040-4020(00)00354-9
    日期:2000.6
    The [2+2]-cycloaddition reactions of ketene diethyl acetal with methyl acrylate and acrylonitrile were optimized. Highly efficient ketal cleavage to either 2-cyano-1-cyclobutanone or 2-methoxycarbonyl-1-cyclobutanone was achieved using formic acid. Among the numerous reduction methods attempted, only sodium cyanoborohydride in acidic medium led successfully to the corresponding alcohols, but isolation
    优化了烯酮二乙基乙缩醛丙烯酸甲酯和丙烯腈的[2 + 2]-环加成反应。使用甲酸实现了对2-基-1-环丁酮或2-甲氧基羰基-1-环丁酮的高效缩酮裂解。在尝试的众多还原方法中,仅在酸性介质中仅氰基硼氢化钠成功地生成了相应的醇,但是无法实现所需产物的分离。我们显示异常的环丁酮化学是由于酸性α-质子和在α-位的吸电子取代基引起的。α质子被甲基取代会导致转向教科书化学
  • Novel photochemical reactions of carbocyclic diazodiketones without elimination of nitrogen – a suitable way to N-hydrazonation of C–H-bonds
    作者:Liudmila L Rodina、Xenia V Azarova、Jury J Medvedev、Dmitrij V Semenok、Valerij A Nikolaev
    DOI:10.3762/bjoc.14.200
    日期:——
    The sensitized photoexcitation of 2-diazocyclopentane-1,3-diones in the presence of THF leads to the insertion of the terminal N-atom of the diazo group into the α-С-Н bond of THF, producing the associated N-alkylhydrazones in yields of up to 63-71%. Further irradiation of hydrazones derived from furan-fused tricyclic diazocyclopentanediones culminates in the cycloelimination of furans to yield 2-N-(alkyl)hydrazone
    在 THF 存在下,2-重氮环戊烷-1,3-二酮的敏化光激发导致重氮基团的末端 N 原子插入 THF 的 α-С-Н 键,产生相关的 N-烷基腙产率高达63-71%。衍生自呋喃稠合三环重氮环戊二酮的腙的进一步辐照最终导致呋喃环消除,产生环戊烯-1,2,3-三酮的2-N-(烷基)腙。相比之下,碳环重氮二酮的直接光解仅产生 Wolff 重排产物,产率高达 90-97%。
  • Synthesis of Dimethyl Glutarate from Cyclobutanone and Dimethyl Carbonate over Solid Base Catalysts
    作者:Chen Zhi、Wu Dudu
    DOI:10.5012/bkcs.2012.33.6.1834
    日期:2012.6.20
    A facile route for the synthesis of dimethyl glutarate (DMG) from cyclobutanone and dimethyl carbonate (DMC) in the presence of solid base catalysts has been developed. It was found that the intermediate carbomethoxycyclobutanone (CMCB) was produced from cyclobutanone with DMC in the first step, and then CMCB was further converted to DMG by reacting with a methoxide group. The role of the basic catalysts
    已经开发了一种在固体碱催化剂存在下由环丁酮碳酸二甲酯 (DMC) 合成戊二酸二甲酯 (DMG) 的简便路线。发现中间体甲氧基环丁酮CMCB)是由环丁酮DMC在第一步中生成的,然后CMCB通过与甲氧基反应进一步转化为DMG。碱性催化剂的作用主要归因于环丁酮的活化,碱基位点夺取α位质子,而中等强度的固体碱,如MgO,有利于DMG的形成。
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