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isobutyl diazoacetate | 50639-30-0

中文名称
——
中文别名
——
英文名称
isobutyl diazoacetate
英文别名
2-methylpropyl (2E)-2-diazoacetate
isobutyl diazoacetate化学式
CAS
50639-30-0
化学式
C6H10N2O2
mdl
——
分子量
142.158
InChiKey
OSUYLZXOVVTSDE-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):
    1.7
  • 重原子数:
    10
  • 可旋转键数:
    4
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.67
  • 拓扑面积:
    28.3
  • 氢给体数:
    0
  • 氢受体数:
    3

反应信息

  • 作为反应物:
    描述:
    isobutyl diazoacetate 在 dirhodium(II) tetrakis(caprolactam) 作用下, 以 二氯甲烷 为溶剂, 以65%的产率得到Γ-二甲基丁内酯
    参考文献:
    名称:
    Spirolactones from Dirhodium(II)-Catalyzed Diazo Decomposition with Regioselective Carbon-Hydrogen Insertion
    摘要:
    Dirhodium(II) caprolactamate, Rh-2(cap)(4), catalyzes diazo decomposition of cycloalkylmethyl diazoacetates which form spirolactones in moderate to high yield by insertion into a tertiary carbon-hydrogen bond. Similar results are obtained with diazoacetates derived from tetrahydropyran-2-methanol and tetrahydrofurfuryl alcohol but not from cyclopropylmethanol. With tetrahydrofuran-3-ylmethyl diazoacetate, Rh-2(cap)(4) catalysis promotes delta-lactone formation via insertion into the oxygen-activated secondary C-H bond instead of gamma-lactone formation by carbene insertion into the unactivated tertiary C-H bond. However, when both 1,5- and 1,6-positions are activated for insertion by adjacent oxygen atoms, as in (2,2-dimethyl-1,3-dioxolan-4-yl)methyl diazoacetate, five-membered ring formation occurs exclusively in Rh-2(cap)(4)-catalyzed reactions, whereas use of dirhodium(II) acetate leads to both insertion products.
    DOI:
    10.1021/jo00115a018
  • 作为产物:
    描述:
    甘氨酸异丁酯 在 sodium nitrite 作用下, 生成 isobutyl diazoacetate
    参考文献:
    名称:
    用于热不稳定化合物的气相色谱/质谱分析以及重氮烷基乙酸烷基酯合成副产物的重新评估的简单准则。
    摘要:
    理由气相色谱(GC)和气相色谱/质谱(GC / MS)的主要限制是分析物的热不稳定性。我们建议,进样器和色谱柱的温度不应超过被分析系列的最高同系物的大气压沸点(无分解),而不是使用不同温度获得色谱图的耗时过程。方法选择了一系列热不稳定的重氮羰基化合物,重氮乙酸烷基酯(预测的稳定性极限为约140°C,重氮乙酸乙酯的沸点),使用标准设备进行GC / MS分析。选择不同的GC分离条件,以使目标化合物的保留温度均低于和高于140°C。结果分析重氮乙酸烷基酯在其热稳定性范围内可以重新分析其典型的合成副产物。没有发现富马酸二烷基酯或马来酸酯杂质,这是以前经常报道的主要分解产物。相反,乙醇酸硝酸盐的烷基酯O(2)NOCH(2)CO(2)R和“假二聚体”产品ROCO [C(2)H(3)NO] CO(2)R第一次发现。结论要避免在GC和/或GC / MS分析过程中热不稳定的有机化合物分解,需要估计其降解温度
    DOI:
    10.1002/rcm.6457
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文献信息

  • Radical Cation Cyclopropanations via Chromium Photooxidative Catalysis
    作者:Francisco J. Sarabia、Eric M. Ferreira
    DOI:10.1021/acs.orglett.7b01095
    日期:2017.6.2
    The chromium photocatalyzed cyclopropanation of diazo reagents with electron-rich alkenes is described. The transformation occurs under mild conditions and features specific distinctions from traditional diazo-based cyclopropanations (e.g., avoiding β-hydride elimination, chemoselectivity considerations, etc.). The reaction appears to work most effectively using chromium catalysis, and a number of
    描述了重氮试剂与富电子烯烃的铬光催化环丙烷化反应。该转化发生在温和的条件下,并具有与传统重氮基环丙烷化的特定区别(例如,避免β-氢化物消除、化学选择性考虑等)。该反应似乎在铬催化下最有效地进行,并且可以以通常良好的产率获得许多修饰的环丙烷。
  • A Catalytic Cross‐Olefination of Diazo Compounds with Sulfoxonium Ylides
    作者:James D. Neuhaus、Adriano Bauer、Alexandre Pinto、Nuno Maulide
    DOI:10.1002/anie.201809934
    日期:2018.12.3
    A ruthenium‐catalysed cross‐olefination of diazo compounds and sulfoxonium ylides is presented. Our reaction design exploits the intrinsic difference in reactivity of diazo compounds and sulfoxonium ylides as both carbene precursors and nucleophiles, which results in a highly selective reaction.
    本文介绍了钌催化的重氮化合物和亚砜基砜的交联反应。我们的反应设计利用了作为卡宾前体和亲核试剂的重氮化合物和亚砜基ox的反应性的内在差异,从而导致了高度选择性的反应。
  • Asymmetric catalytic 1,3-dipolar cycloaddition of α-diazoesters for synthesis of 1-pyrazoline-based spirochromanones and beyond
    作者:Peng Zhao、Zegong Li、Jun He、Xiaohua Liu、Xiaoming Feng
    DOI:10.1007/s11426-021-1027-7
    日期:2021.8
    A highly enantioselective 1,3-dipolar cycloaddition of α-substituted diazoesters with exocyclic enones was achieved with chiral scandium(III)/N, N’-dioxide complex as the catalyst. This protocol provided a facile and efficient route to optically active 1-pyrazoline-based spirochromanones and others with good outcomes (up to 97% yield, 98% ee with >95:5 dr). Moreover, enantioenriched 2-pyrazoline-based
    以手性钪 (III)/ N, N'-二氧化物配合物为催化剂,实现了 α-取代重氮酯与环外烯酮的高度对映选择性 1,3-偶极环加成反应。该协议为光学活性 1-吡唑啉基螺色满酮和其他具有良好结果的化合物(产率高达 97%,98% ee,>95:5 dr)提供了一种简便有效的途径。此外,还可以通过将 α-取代的重氮酯转换为 α-重氮乙酸酯来获得富含对映体的 2-吡唑啉基螺色满酮。还公开了手性基于吡唑啉的螺化合物向螺环丙烷衍生物的进一步具体转化。
  • Two Distinct Ag(I)- and Au(I)-Catalyzed Olefinations between α-Diazo Esters and <i>N</i>-Boc-Derived Imines
    作者:Rahul Dadabhau Kardile、Rai-Shung Liu
    DOI:10.1021/acs.orglett.9b02343
    日期:2019.8.16
    Metal-catalyzed reactions between α-diazo esters and imines were well-known to yield aziridine derivatives exclusively. This work reports two new olefination reactions between N-Boc-derived (Boc = tert-Butyloxycarbonyl) imines and α-diazo esters with Ag(I) and Au(I) catalysts, respectively. Our mechanistic studies reveal that these new olefinations involve an initial attack of diazo esters on metal/imine
    众所周知,α-重氮酯和亚胺之间的金属催化反应只能生成氮丙啶衍生物。这项工作报告了分别由Ag(I)和Au(I)催化剂在N -Boc衍生的(Boc =叔-丁氧基羰基)亚胺和α-重氮酯之间进行的两个新的烯烃化反应。我们的机理研究表明,这些新的烯化反应涉及重氮酯对金属/亚胺络合物的最初攻击,以形成曼尼希加成中间体,随后通过Roskamp反应提供α-芳基-β-氨基丙烯酸酯,或形成β-芳基-β -氨基丙烯酸酯通过形成卡宾银而形成。
  • [EN] NOVEL MACROCYLES AND METHODS FOR THEIR PRODUCTION<br/>[FR] NOUVEAUX MACROCYLES ET LEURS PROCÉDÉS DE PRODUCTION
    申请人:BIOTICA TECH LTD
    公开号:WO2011045593A1
    公开(公告)日:2011-04-21
    There are provided compounds of formula (I) or a pharmaceutically acceptable salt thereof: wherein the variables R1-R3 are as described in the description, said compounds being useful as anti-inflammatory agents with reduced systemic effects.
    提供了化合物的结构式(I)或其药用盐:其中变量R1-R3如描述中所述,这些化合物可用作具有减少全身效应的抗炎药物。
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