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N,N-二乙基硫代氨基甲酸乙酯 | 55974-10-2

中文名称
N,N-二乙基硫代氨基甲酸乙酯
中文别名
——
英文名称
ethyl N,N-diethylthiocarbamate
英文别名
O-ethyl diethylthiocarbamate;EtOC(S)NEt2;diethyl-thiocarbamic acid O-ethyl ester;Diaethyl-thiocarbamidsaeure-O-aethylester;O-Ethylester von N,N-Diethylthiocarbamidsaeure;N,N-Diethyl-thiocarbamidsaeure-O-ethylester;Ethanol diethyldithiocarbamate;O-ethyl N,N-diethylcarbamothioate
N,N-二乙基硫代氨基甲酸乙酯化学式
CAS
55974-10-2
化学式
C7H15NOS
mdl
——
分子量
161.268
InChiKey
NVZRLFKNPMVIEV-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:
    114 °C(Press: 20 Torr)
  • 密度:
    0.991±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.8
  • 重原子数:
    10
  • 可旋转键数:
    4
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.86
  • 拓扑面积:
    44.6
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    N,N-二乙基硫代氨基甲酸乙酯三氯硫氯甲烷 为溶剂, 生成 Trichlormethyl-(N,N-diethyl-carbamoyl)-disulfid
    参考文献:
    名称:
    The Reactions of Sulfenyl Chlorides with Thionocarbamates
    摘要:
    DOI:
    10.1021/ja01486a036
  • 作为产物:
    描述:
    alkaline earth salt of/the/ methylsulfuric acid 在 乙醚 、 lead(II) oxide 作用下, 生成 N,N-二乙基硫代氨基甲酸乙酯
    参考文献:
    名称:
    Nambury, Journal of the Indian Chemical Society, 1959, vol. 36, p. 95,96
    摘要:
    DOI:
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文献信息

  • The mechanisms of hydrolysis of alkyl <i>N</i>-alkylthioncarbamate esters at 100 °C
    作者:Eduardo Humeres、Maria de Nazaré M. Sanchez、Conceição ML Lobato、Nito A Debacher、Eduardo P. de Souza
    DOI:10.1139/v05-165
    日期:2005.9.1

    The hydrolysis of ethyl N-ethylthioncarbamate (ETE) at 100 °C was studied in the range of 7 mol/L HCl to 4 mol/L NaOH. The pH–rate profile showed that the hydrolysis occurred through specific acid catalysis at pH < 2, spontaneous hydrolysis at pH 2–6.5, and specific basic catalysis at pH > 6.5. The Hammett acidity plot and the excess acidity plot against X were linear. The Bunnett–Olsen plot gave a negative slope indicating that the conjugate acid was less hydrated than the neutral substrate. It was concluded that the acid hydrolysis occurred by an A1 mechanism. The neutral species hydrolyzed with general base catalysis shown by the Brønsted plot with β = 0.48 ± 0.04. Water acted as a general base catalyst with (pseudo-)first-order rate constant, kN = 3.06 × 10–7 s–1. At pH > 6.5 the rate constants increased, reaching a plateau at high basicity. The basic hydrolysis rate constant of ethyl N,N-diethylthioncarbamate, which must react by a BAc2 mechanism, increased linearly at 1–3 mol/L NaOH with a second-order rate constant, k2 = 2.3 × 10–4 (mol/L)–1 s–1, which was 10 times slower than that expected for ETE. Experiments of ETE in 0.6 mol/L NaOH with an excess of ethylamine led to the formation of diethyl thiourea, presenting strong evidence that the basic hydrolysis occurred by the E1cb mechanism. In the rate-determining step, the E1cb mechanism involved the elimination of ethoxide ion from the thioncarbamate anion, producing an isothiocyanate intermediate that decomposed rapidly to form ethylamine, ethanol, and COS.Key words: alkylthioncarbamate esters, ethyl N-ethylthioncarbamate, ethyl N,N-diethylthioncarbamate, hydrolysis, mechanism.

    乙基-N-乙基硫代氨基甲酸酯(ETE)在100°C下在7摩尔/升HCl至4摩尔/升NaOH范围内进行了研究。pH-速率曲线表明,在pH <2时,水解发生在特定酸催化作用下,在pH 2-6.5时发生自发水解,在pH >6.5时发生特定碱催化作用。Hammett酸度图和过量酸度图对X的关系是线性的。Bunnett-Olsen图给出了一个负斜率,表明共轭酸比中性底物更少水合。得出结论,酸水解是通过A1机制发生的。中性物种通过Brønsted图显示β = 0.48 ± 0.04的一般碱催化水解。水作为一般碱催化剂,具有(伪)一阶速率常数,kN = 3.06 × 10-7 s-1。在pH >6.5时,速率常数增加,达到高碱性时的平台。乙基-N,N-二乙基硫代氨基甲酸酯的碱水解速率常数,必须通过BAc2机制反应,与1-3摩尔/升NaOH呈线性增加,二阶速率常数k2 = 2.3 × 10-4(摩尔/升)-1 s-1,比ETE预期的慢10倍。在0.6摩尔/升NaOH中,ETE的实验中,有过量的乙胺导致二乙基硫脲的形成,这提供了基础水解是通过E1cb机制发生的强有力证据。在决速步骤中,E1cb机制涉及从硫代氨基甲酸酯阴离子中消除乙氧根离子,产生一个异硫氰酸酯中间体,该中间体迅速分解成乙胺、乙醇和COS。关键词:烷基硫代氨基甲酸酯酯,乙基-N-乙基硫代氨基甲酸酯,乙基-N,N-二乙基硫代氨基甲酸酯,水解,机制。
  • A synthesis of N-alkyl and N,N-dialkyl O-ethyl thiocarbamates from diethyl dixanthogenate using different oxidants
    作者:Milutin M. Milosavljević、Milica Sovrlić、Aleksandar D. Marinković、Dragan D. Milenković
    DOI:10.1007/s00706-010-0328-y
    日期:2010.7
    yield was studied. The results obtained by use of these three methods were compared with those obtained by reaction of sodium ethyl xanthogenacetate and amines, and of sodium ethyl xanthate with amines in the presence of sulfated nickel zeolite catalyst. The reaction mechanism of sodium hypochlorite oxidation has been established on the basis of isolation of reaction intermediates and determination of
    摘要N-烷基和N,N-二烷基O的新颖合成已经在实验室规模上开发了使用三个氧化系统的二黄原酸二乙酯和伯胺和仲胺生成的乙基硫代氨基甲酸酯,并且已在半工业规模应用了使用次氯酸钠的方法。研究了氧化剂,次氯酸钠,原位生成的过氧乙酸和乙酸锰(II)/氧气体系对产品纯度和收率的影响。将通过这三种方法获得的结果与在硫酸化镍沸石催化剂存在下乙基黄原酸乙酸钠和胺以及乙基黄原酸钠和胺反应得到的结果进行比较。在分离反应中间体并通过傅立叶变换红外光谱测定其结构的基础上,建立了次氯酸钠氧化的反应机理。1 H和13 C NMR以及质谱法。与商业和催化促进的合成方法相比,建议的次氯酸钠和乙酸锰(II)体系具有许多优势,因为它们是新型的生态友好型合成方法。 图形概要
  • Spectroscopic and thermal studies on dirhodium tetra-acetate adducts with thiocarbonyl donors
    作者:G. Faraglia、L. Volponi、S. Sitran
    DOI:10.1016/0040-6031(88)87112-0
    日期:1988.9
    Abstract The complexes [Rh 2 (O 2 CMe) 4 (L) 2 ], in which L = DETC (EtOSCNEt 2 ). ETC (EtOSCNHEt), MTC (EtOSCNHMe) and TC (EtOSCNH 2 ), have been prepared and characterized by elemental analyses and electronic, IR and NMR ( 1 H and 13 C) spectra. The thermal behaviour of these complexes and of the DMTC (EtOSCNMe 2 ), TBA (PhSCNH 2 ) and TAA (MeSCNHPh) analogues is discussed. On heating the DETC and DMTC
    摘要 配合物[Rh 2 (O 2 CMe) 4 (L) 2 ],其中L = DETC (EtOSCNEt 2 )。ETC (EtOSCNHEt)、MTC (EtOSCNHMe) 和TC (EtOSCNH 2 ) 已制备并通过元素分析和电子、IR 和NMR( 1 H 和 13 C)光谱表征。讨论了这些配合物和 DMTC (EtOSCNMe 2 )、TBA (PhSCNH 2 ) 和 TAA (MeSCNHPh) 类似物的热行为。在加热 DETC 和 DMTC 加合物时,轴向分子完全释放,产生 [Rh 2 (O 2 CMe) 4 ] 作为降解中间体。相反,对于带有带有 NH 或 NH 2 基团的硫代羰基供体的配合物,观察到部分配体释放,这可能是与四乙酸铑笼的副反应的结果。
  • Tri(hetero)substituted Carbonium Ions. II. 2-Dialkylamino-1,3-dithiolanylium Ions. Reactions with Nucleophiles and Ambident Behaviors
    作者:Takeshi Nakai、Makoto Okawara
    DOI:10.1246/bcsj.43.1864
    日期:1970.6
    including oxygen, sulfur and nitrogen nucleophiles have been investigated. Examination of the isolated products reveals that these trihetrosubstituted carbonium ions behave as ambident electrophiles toward nucleophiles with two reactive sites, i.e., the electron-deficient centered carbon (a) and the ring-methylene carbon atom (b), and that the nature of nucleophiles greatly affects the reaction course
    已经研究了 2-二烷基氨基-1,3-dithiolanylium 高氯酸盐与各种亲核物质(包括氧、硫和氮亲核试剂)的反应。对分离产物的检查表明,这些三杂取代的碳正离子对具有两个反应位点的亲核试剂,即缺电子的中心碳 (a) 和环亚甲基碳原子 (b),表现为双亲电子试剂,并且亲核试剂的性质以直接的方式极大地影响反应过程。反应过程可分类如下。如果亲核试剂是碱性的,则在位点 (a)(模式 A)的反应是有利的,但如果它有大量的取代基,则最初的质子提取反应(模式 C)占主导地位,而如果亲核试剂是可极化的,则有利于位点 (b)(模式 B)的反应。
  • Dubina,V.L.; Skripets,V.I., Journal of Organic Chemistry USSR (English Translation), 1976, vol. 12, p. 333 - 338
    作者:Dubina,V.L.、Skripets,V.I.
    DOI:——
    日期:——
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