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tioglycolate | 57966-62-8

中文名称
——
中文别名
——
英文名称
tioglycolate
英文别名
2-hydroxyethanethiolate
tioglycolate化学式
CAS
57966-62-8
化学式
C2H5OS
mdl
——
分子量
77.1271
InChiKey
DGVVWUTYPXICAM-UHFFFAOYSA-M
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):
    -0.2
  • 重原子数:
    4
  • 可旋转键数:
    1
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    21.2
  • 氢给体数:
    1
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    tioglycolateselenium 作用下, 生成 C2H5OSSe(1-)
    参考文献:
    名称:
    Amaratunga, W.; Chaudry, O.; Milne, J., Canadian Journal of Chemistry, 1994, vol. 72, # 9, p. 1165 - 1170
    摘要:
    DOI:
  • 作为产物:
    参考文献:
    名称:
    Nitroso group transfer from N-nitrososulfonamides to thiolate ions. Intrinsic reactivity
    摘要:
    The nitroso group transfer from N-nitrososulfonamides to thiolate ions was studied. Based on the results, the reaction rate is strongly dependent on the nature of the leaving group (alpha(1g) approximate to -1.30), but virtually independent of the basicity of the thiol (beta(nuc) approximate to 0-10)This dependence is ascribed to the presence of a nucleophile desolvation equilibrium (beta(d)) that is followed by the attack of the thiolate ion on the nitroso group (beta'(nuc)) via a concerted mechanism. The equilibrium constants for the loss of a nitroso group from a nitrosothiol and an N-nitrososulfonarni de were used to obtain the equilibrium constants for the different reactions involved. By using rate-equilibrium correlations, the parameters alpha(norm)(1g) ,beta(d), and beta('norm)(nuc) were obtained. (c) 2006 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.tet.2006.06.060
  • 作为试剂:
    描述:
    9-acetyl-9-cyanofluorene 在 tioglycolate 作用下, 以 二甲基亚砜 为溶剂, 生成 9-cyanofluorenide anion
    参考文献:
    名称:
    Cation-anion combination reactions. 21. Reactions of thiolate ions, cyanide ion, and amines with cations and carbonyl compounds in dimethyl sulfoxide solution
    摘要:
    DOI:
    10.1021/ja00376a041
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文献信息

  • Kinetics of extremely fast ligand-exchange reactions with methylmercury(II)-nitrothiophenolate complexes: rate-equilibria correlations
    作者:Gerhard Geier、Hugo Gross
    DOI:10.1016/s0020-1693(00)90373-6
    日期:1989.2
    S-donors can also initiate directly the ligand-exchange reactions. The rate constants for the thiophenols are always smaller than those for the thiophenolates. The reactivity of the protonated S-donors is strongly dependent on the nature of the ligand to be displaced. Several features of the reaction mechanisms involved and their relevance for the transport of CH3Hg(II) in natural systems are discussed.
    CH 3 Hg(II)从两种硝基硫代酚盐(4-硝基-2-磺基-硫代苯酚盐和4-硝基-3-羧甲基-硫代苯酚盐)转移到多种其他配体的动力学,并且已经进行了逆反应通过跳温和停流方法进行了研究。在整个平衡常数范围内,即使在等电区域,交换反应也几乎受扩散控制。质子化的S-供体也可以直接引发配体交换反应。硫酚的速率常数始终小于硫酚盐的速率常数。质子化的S-给体的反应性在很大程度上取决于要置换的配体的性质。涉及的反应机理的几个特征及其与CH 3的运输相关性讨论了自然系统中的Hg(II)。
  • Mechanism of reactions of N-(methoxymethyl)-N,N-dimethylanilinium ions with nucleophilic reagents
    作者:Barry L. Knier、William P. Jencks
    DOI:10.1021/ja00542a021
    日期:1980.10
    weak interactions with the entering and leaving groups. Secondary ..cap alpha..-deuterium isotope effects for the second-order reactions range from (k/sub H//k/sub D/)/D = 0.99 for fluoride ion to 1.18 for iodide ion. Solvolysis and the second-order reaction with n-propylamine exhibit values of ..delta..S/sup + +/ = -1.2 and -2.1 cal K/sup -1/ mol/sup -1/, respectively, and display similarmore » changes
    通过检查 N-(甲氧基甲基)-N,N 的反应,已经测试了由甲醛衍生的氧代碳正离子的寿命约为 10/sup -15/s,从而产生强制预缔合或协同反应机制的预测-二甲基苯胺离子在添加的亲核试剂存在下的水中。这些化合物与亲核试剂发生良好的二级反应,并产生一定量的取代产物,这是在亲核试剂存在下速率增加所预期的。结构-反应性相关性表现出介于 S/sub N/2 (Swain-Scott) 和碳正离子 (N/sup +/) 反应预期之间的行为。s = 0.3 和 ..beta../sub nuc/ = 0.14 的小值和 ..beta../sub lg/ 的大值 = -0.7 到 -0。图 9 表示一种过渡态,它可以描述为 S/sub N/2 置换的开放过渡态,也可以描述为通过与进入和离开基团的弱相互作用稳定的氧碳鎓离子。二级反应的二级 ..cap α..-氘同位素效应范围从 (k/sub H//k/sub
  • Detection and kinetic characterization of S<sub>N</sub>V intermediates. Reactions of thiomethoxybenzylidene Meldrum's acid with thiolate ions, alkoxide ions, OH<sup>-</sup>, and water in aqueous DMSO
    作者:Claude F Bernasconi、Rodney J Ketner、Xin Chen、Zvi Rappoport
    DOI:10.1139/v99-009
    日期:1999.6.1
    The reaction of thiomethoxybenzylidene Meldrum's acid (5-SMe) with thiolate and alkoxide ion nucleophiles is shown to proceed by the two-step addition-elimination SNV mechanism in which the tetrahedral intermediate accumulates to detectable levels. For the reactions with thiolate ions, rate constants for nucleophilic addition (k1RX), its reverse (k-1RX), and for conversion of the intermediate to products
    显示硫代甲氧基亚苄基 Meldrum 酸 (5-SMe) 与硫醇盐和醇盐离子亲核试剂的反应通过两步加成 - 消除 SNV 机制进行,其中四面体中间体积累到可检测水平。对于与硫醇盐离子的反应,确定了亲核加成 (k1RX)、其反向 (k-1RX) 和中间体转化为产物 (k2RX) 的速率常数。与醇盐离子反应,只能得到k1RX和k-1RX;这些反应中的中间体没有产生预期的取代产物,因此无法确定 k2RX 值。与 OH- 和水的反应被认为遵循相同的机制,但各自的中间体保持在稳态水平,并且只有 k1OH 和 k1H2O 对 5-SMe 进行亲核攻击是可测量的。
  • Lifetimes of Imidinium Ions in Aqueous Solution
    作者:Kevin N. Dalby、William P. Jencks
    DOI:10.1021/ja970628i
    日期:1997.8.1
    Imidinium ions, ArNCNR2+, were generated in aqueous solution from the solvolysis of fluoro and chloro formamidines at pH 9.3 and 25 °C. Rate constants for the hydration of five imidinium ions were determined from a kinetic analysis of their trapping by thiolacetate anion, CH3COS-, in the presence of a pool of competing fluoride anion, and a rate constant of kAcS− = 5 × 109 M-1 s-1 for diffusion-controlled
    在 pH 9.3 和 25 °C 条件下,氟和氯甲脒在水溶液中溶解生成亚胺离子 ArNCNR2+。五个亚胺鎓离子水合的速率常数是根据它们在竞争氟阴离子池中被硫乙酸根阴离子 CH3COS- 捕获的动力学分析确定的,速率常数为 kAcS− = 5 × 109 M-1 s-1 用于使用硫代乙酸根阴离子对碳正离子进行扩散控制捕获。亚胺鎓离子 XArNCNC4H8O+ 水合的速率常数 ks 为 3.6 × 105、5.8 × 105、1.5 × 106、1.6 × 106 和 1.8 × 106 s-1,对于 X = H, 4-CN, 3 、 4-CN 和 3-NO2 分别。在一个类似的实验中,亚胺鎓离子 4-NO2ArNCNCH3(OCH3)+ 的水合速率常数为 ks = 3.3 × 107 s-1,通过使用叠氮化物阴离子捕获阳离子和速率常数 kaz = 5 × 109 M-1 s-1,用于用叠氮
  • Unraveling Structure−Reactivity Relationships in S<sub>N</sub>V Reactions: Kinetics of the Reactions of Methoxybenzylidenemalononitrile, 2-(Methylthiobenzylidene)-1,3-indandione, 2-(Benzylthiobenzylidene)-1,3-indandione, and Methyl β-Methylthio-α-nitrocinnamate with OH<sup>-</sup> and Thiolate Ions in Aqueous DMSO
    作者:Claude F. Bernasconi、Rodney J. Ketner、Mark L. Ragains、Xin Chen、Zvi Rappoport
    DOI:10.1021/ja003536t
    日期:2001.3.1
    The kinetics of the title reactions were determined in 50% DMSO-50% water (v/v) at 20 degrees C; n-BuS-, HOCH2CH2S-, and MeO2CCH2S- were used as thiolate ions. The reactions with the thiolate ions gave rise to two separate kinetic processes. The first refers to rapid, reversible attachment of RS- to the substrate leading to a tetrahedral intermediate (k1RS), k(-1)RS, the second to the conversion of
    标题反应的动力学在 50% DMSO-50% 水 (v/v) 中于 20 摄氏度进行测定;n-BuS-、HOCH2CH2S- 和 MeO2CCH2S- 用作硫醇盐离子。与硫醇盐离子的反应产生两个独立的动力学过程。第一个是指 RS- 与底物的快速、可逆连接,导致四面体中间体 (k1RS),k(-1)RS,第二个是中间体转化为产物 (k2RS)。在大多数情况下,可以确定所有速率常数(k1RS、k(-1)RS 和 k2RS。结合先前研究的结果,详细讨论了活化取代基和离去基团对速率常数和平衡常数的影响与本征速率常数一样,与 OH- 的反应仅允许测定 k1OH 对底物的亲核攻击;
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