摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

pivaloyl disulfide | 74491-70-6

中文名称
——
中文别名
——
英文名称
pivaloyl disulfide
英文别名
S-(2,2-dimethylpropanoylsulfanyl) 2,2-dimethylpropanethioate
pivaloyl disulfide化学式
CAS
74491-70-6
化学式
C10H18O2S2
mdl
——
分子量
234.384
InChiKey
BQIBIOOFRBQATP-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:
    311.7±25.0 °C(Predicted)
  • 密度:
    1.085±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    3.3
  • 重原子数:
    14
  • 可旋转键数:
    5
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.8
  • 拓扑面积:
    84.7
  • 氢给体数:
    0
  • 氢受体数:
    4

反应信息

  • 作为反应物:
    描述:
    pivaloyl disulfide 以 various solvent(s) 为溶剂, 生成 乙基,1,1-二甲基-(9CI)
    参考文献:
    名称:
    乙酰基自由基反应的ESR研究
    摘要:
    紫外光分解二酰基二硫化物可得到酰基基团[RC(O)S·],该基团与烯烃,亚磷酸三烷基酯和二烷基硫化物反应生成加合物,该加合物已通过esr光谱法检测到。
    DOI:
    10.1039/c39800000062
  • 作为产物:
    描述:
    参考文献:
    名称:
    硫代羧酸O-甲硅烷基酯的亲硫卤化。酰硫基卤化物的简便制备方法
    摘要:
    硫代羧酸O-甲硅烷基酯的卤化反应以高收率得到酰硫磺酰卤,涉及卤离子对硫代羰基的硫原子的亲硫攻击。首次分离出脂肪族酰基亚磺酰基溴。
    DOI:
    10.1016/s0040-4039(00)85012-1
点击查看最新优质反应信息

文献信息

  • Formation of acyldisulfide ions from the reaction of sulfur with thiocarboxylate ions, and reactivity towards acyl chlorides in N,N-dimethylacetamide
    作者:Julie Robert、Meriem Anouti、Jacky Paris
    DOI:10.1039/a606701h
    日期:——
    The reactivity of sulfur towards thiocarboxylate ions RC(O)S- a (R = Ph 1, Me 2, But 3) has been studied by spectroelectrochemistry in N,N-dimethylacetamide. For 2a–3a, two parallel and partial reactions, for which equilibrium constants have been determined, led to: (i) [RC(O)]2S2- b species and S3·-/S82- polysulfide ions and (ii) RC(O)S2 ions c; only traces of 1c were detected by voltammetry. As previously observed with thiolate ions, our results are consistent with an initial monoelectronic transfer between RC(O)S- ions and S2 molecules in equilibrium with S8, followed by concurrent couplings of RC(O)S˙ and S2·- radicals. On a preparative scale, when sulfur was added to RC(O)S- ions 1a,3a the enhanced reactivity of RC(O)S2- ions towards acyl chlorides RC(O)Cl (R = C6H5 and But, respectively) only yielded diacyl disulfides 1b,3b.
    硫对硫羧酸盐离子 RC(O)S- 的反应性(R = Ph 1, Me 2, But 3)通过在N,N-二甲基乙酰胺中的光谱电化学进行了研究。对于2a–3a,进行了两个平行的部分反应,已确定平衡常数,导致: (i) 产生 [RC(O)]2S2- 物种及 S3·-/S82- 多硫离子; (ii) 产生 RC(O)S2 离子 c;通过伏安法仅检测到微量的 1c。正如之前观察到的与硫醇离子的行为相一致,我们的结果表明,RC(O)S- 离子与与 S8 处于平衡的 S2 分子之间发生了初步的单电子转移,随后 RC(O)S˙ 和 S2·- 自由基发生了并行偶联。在制备规模上,当硫加入到 RC(O)S- 离子 1a,3a 时,RC(O)S2- 离子对酰氯 RC(O)Cl(R = C6H5 和 But, 分别)的增强反应性仅生成二酰基二硫化物 1b,3b。
  • Nucleophilic substitution of acyl chlorides by electrogenerated polysulfide ions in N,N-dimethylacetamide
    作者:Julie Robert、Meriem Anouti、Mohamed Abarbri、Jacky Paris
    DOI:10.1039/a700939i
    日期:——
    The reactions between acyl chlorides RC(O)Cl (a) [R = Me (1), Pri (2), But (3), Ph(4)] and electrogenerated S3˙- (⇌ S62- ) ions have been investigated in N,N-dimethylacetamide by spectroelectrochemistry. With R = alkyl, thiocarboxylate ions and sulfur resulting from the fast initial substitutions cause partial formation of both acyl disulfide ions and diacyl disulfides (b) at a y ratio [RC(O)Cl]/[S3˙-] of 0.5; the second step stoichiometrically (y = 1) affords diacyl disulfides 1b–4b as the presumed products. The formation of these species only is confirmed on a preparative scale from two sets of experiments: (i) direction addition of acyl chlorides (1a–4a) to chemically generated S⅓- solutions; (ii) electrolysis of sulfur in the presence of acyl chlorides 2a–4a.
    已经通过光谱电化学方法研究了酰氯 RC(O)Cl (a) [R = Me (1), Pri (2), But (3), Ph (4)] 与电生S3˙- (⇌ S62-) 离子在N,N-二甲基乙酰胺中的反应。当R为烷基时,迅速的初始取代反应产生的硫代羧酸盐离子和硫导致在[RC(O)Cl]/[S3˙-]的比率为0.5时部分生成酰二硫酸盐离子和二酰二硫化物 (b);第二步化学计量(y = 1)生成二酰二硫化物1b–4b作为假定产物。通过两组实验的备制结果确认了这些物质的形成:(i) 将酰氯 (1a–4a) 直接添加到化学生成的S⅓-溶液中;(ii) 在酰氯2a–4a存在下电解硫。
  • Electron spin resonance spectra of selenuranyl radicals R<sub>2</sub>Se–X
    作者:Jeremy R. M. Giles、Brian P. Roberts、M. John Perkins、Eric S. Turner
    DOI:10.1039/c39800000504
    日期:——
    E.s.r. spectra assigned to the σ* selenuranyl radicals R2Se[graphic omitted]X (R = alkyl or aryl) are detected in solution during photochemical generation of X·[CF3S·, R′C(O)S·, Me3CO·, or Me3SiO·] in the presence of dialkyl or alkyl aryl selenides.
    ESR谱分配给σ* selenuranyl基团R 2硒[图形省略] X(R =烷基或芳基)的光化学产生X·[CF期间在溶液中检测到3 S·,R'C(O)S·中,Me在二烷基或烷基芳基硒化物存在下的3 CO·或Me 3 SiO·]。
  • An electron spin resonance study of sulphuranyl radicals of the type R<sub>2</sub>S–SX [X = CF<sub>3</sub>or R′C(O)]
    作者:Jeremy R. M. Giles、Brian P. Roberts
    DOI:10.1039/p29800001497
    日期:——
    Photochemically generated trifluoromethyl- or acyl-thiyl radicals add to dialkyl sulphides to form the sulphuranyl radicals R2S1–S2X [X = CF3 or RC(O)], the e.s.r. spectra of which have been detected. These adducts appear to be non-planar at the three-co-ordinate sulphur and the unpaired electron is thought to occupy an S–S σ* orbital. The β-hydrogen splittings from the S1-alkyl groups probably arise
    光化学生成的三氟甲基或酰基噻吩基团加到二烷基硫醚上,形成硫磺基团R 2 S 1 –S 2 X [X = CF 3或R'C(O)],其esr光谱已被检测到。这些加合物在三坐标硫原子上似乎是非平面的,并且未成对的电子被认为占据了Sσσ*轨道。从β型氢分裂小号1 -烷基基团可能主要发生通过自旋传输的hyperconjugative机制,并且似乎取决于在S的自旋密度(ρ)1个-3 p σ轨道和二面角(θ)之间在S 1 CH β和S 2小号1个根据近似公式C平面一个(H β)= 25.2ρcos 2 θG的克的硫烷基的基团的因素是显着地取决于温度和R的性质在低温下,该加合物通常衰变通过二阶过程,大概是双分子自反应。当R 2 S = [省略图]或(Et 2 N)2 S时,即使在低温下也分别发生快速开环或S–N裂解,观察到不同的行为。温度相关的线形效应在R 2的光谱中很明显S-SX,和若干不同的过程似乎
  • Reaction of thio and seleno phosphoric acid derivatives withO-thioacylated hydroxylamine
    作者:Grzegorz Cholewinski、Dariusz Witt、Radosław Majewski、Tadeusz Ossowski、Janusz Rachon
    DOI:10.1002/hc.20368
    日期:2007.11
    thio and seleno analogs of phosphoric acid 1b–f with O-thioacylhydroxylamine 2 was examined. The experimental evidence for the proposed mechanism involving an N—O bond cleavage and a single electron transfer process (SET) from phosphate anions was collected. The influence of phosphoric acids 1 structure and their oxidation potentials on the course of the reaction and products 3, 4, 6, 7 distribution
    检查了磷酸 1b-f 的硫代​​和硒代类似物与 O-硫代酰基羟胺 2 的反应性。收集了所提出机制的实验证据,该机制涉及磷酸根阴离子的 N-O 键断裂和单电子转移过程 (SET)。介绍了磷酸 1 结构及其氧化电位对反应过程和产物 3、4、6、7 分布的影响。© 2007 Wiley Periodicals, Inc. 杂原子化学 18:767–773, 2007; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20368
查看更多