Dichloroethyne etherate | 69782-67-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: Dichloroethyne etherate
• 英文别名: dichloroethyne*Et2O；diethyl ether; compound with dichloroethyne (1:1)；dichloro-acetylene; compound with diethyl ether；Dichlor-acetylen; Verbindung mit Diaethylaether；1,2-dichloroethyne;ethoxyethane
• CAS: 69782-67-8
• 化学式: C₂Cl₂*C₄H₁₀O
• 分子量: 169.051
• InChiKey: UVUQYXBHDKUHRR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.43
• 重原子数：
  9.0
• 可旋转键数：
  2.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  9.23
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  Dichloroethyne etherate 在 氢氧化钾 、 calcium oxide 作用下， 以 乙醚 为溶剂， 生成 α-Chloraethinyl-diaethylaether
  参考文献：
  名称：

  Notes- α-Chloroacetylenes

  摘要：

  DOI：

  10.1021/jo01064a600
• 作为产物：
  描述：

  三氯乙烯 、 乙醚 、 sodium hydroxide 、 水 、 苄基三乙基氯化铵 以90%的产率得到
  参考文献：
  名称：

  PIELICHOWSKI, J.;POPIELARZ, R., SYNTHESIS, BRD, 1984, N 5, 433-434

  摘要：

  DOI：

文献信息

• Chlorothioketene, the Ultimate Reactive Intermediate Formed by Cysteine Conjugate β-Lyase-Mediated Cleavage of the Trichloroethene Metabolite <i>S</i>-(1,2-Dichlorovinyl)-<scp>l</scp>-cysteine, Forms Cytosine Adducts in Organic Solvents, but Not in Aqueous Solution
  作者：Wolfgang Völkel、Wolfgang Dekant

  DOI：10.1021/tx980084d

  日期：1998.9.1

  Chlorothioketene has been suggested as a reactive intermediate formed by the cysteine conjugate beta-lyase-mediated cleavage of S-(1,2-dichlorovinyl)-L-cysteine, a minor metabolite of trichloroethene. Halothioketenes are highly reactive, and their intermediate formation may be confirmed by reactions such as cycloadditions and thioacylations of nucleophiles. A precursor of chlorothioketene, S-( 1,2-dichlorovinyl)thioacetate, is readly accessible by the reaction of dichloroethyne with thioacetic acid. In presence of base, S-(1,2-dichlorovinyl)thioacetate is cleaved to chlorothioketene. Chlorothioketene is not stable at room temperature and was characterized after transformation to stable products by reaction with compounds such as cyclopentadiene, N,N-diethylamine, and ethanol. In organic solvents, the cleavage of S-(1,2-dichlorovinyl)thioacetate in the presence of cytosine results in N-4-acetylcytosine, N-4-(chlorothioacetyl)cytosine, and small amounts of 3-(N-4-thioacetyl)cytosine. No reaction products were seen with guanosine, adenosine, and thymidine under identical conditions. When cytosine was reacted with S-(1,2-dichlorovinyl)thioacetate in aqueous solutions, only N-4-acetylcytosine was formed. N-4-(Chlorothioacetyl)cytosine and 3-(N-4-thioacetyl)cytosine were not detected even when using a very sensitive method, derivatization with pentafluorobenzyl bromide and electron capture mass spectrometry with a detection limit of 50 fmol/mu L of injection volume. Aqueous solutions of DNA cleave S-(1,2-dichlorovinyl)thioacetate to give N-4-acetyldeoxycyticline in DNA, but chlorothioketene adducts of deoxynucleosides were also not detected in these experiments. These results confirm the electrophilic reactivity of chlorothioketene toward nucleophilic groups of DNA constituents in inert solvents but also demonstrate that the formation of DNA adducts under physiological conditions likely is not efficient. Therefore, DNA adducts may not represent useful biomarkers of exposure and biochemical effects for trichloroethene.
• Stahl, K.; Weller, F.; Dehnicke, K., Zeitschrift fur Anorganische und Allgemeine Chemie
  作者：Stahl, K.、Weller, F.、Dehnicke, K.

  DOI：——

  日期：——
• Suenkel, Karlheinz, Chemische Berichte, 1991, vol. 124, p. 2449 - 2452
  作者：Suenkel, Karlheinz

  DOI：——

  日期：——
• LEONOV, A. A.;KOMAROV, V. YA.;DOGADINA, A. V.;JONIN, B. I.;PETROV, A. A., ZH. OBSHCH. XIMII, 1985, 55, N 1, 32-39
  作者：LEONOV, A. A.、KOMAROV, V. YA.、DOGADINA, A. V.、JONIN, B. I.、PETROV, A. A.

  DOI：——

  日期：——