| 72205-94-8

• CAS: 72205-94-8
• 化学式: C₁₀H₂₃BCl₂S
• 分子量: 257.076
• InChiKey: GDWVGFPMLYZPPY-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  辛烯 、 dichloroborane methyl sulfide complex 以 二氯甲烷 为溶剂， 生成
  参考文献：
  名称：

  The role of the double bond position in hydroboration using HBBr2·SMe2, HBCl2·SMe2 and H2BBr·SMe2: A detailed kinetic and mechanistic study

  摘要：

  Hydroboration reactions of 4-octene with HBBr2 center dot SMe2, HBCl2 center dot SMe2 and H2BBr center dot SMe2 in CH2Cl2 Were studied as function of concentration and temperature and compared with those of I-octene. On average. hydroboration with dihaloborane proceeded 16 times slower for 4-octene than for 1-octene. In the case of the reactions with the monohaloborane, this factor is halved. This can be explained by the difference in the relative rates of dissociates Of Me2S from the dihaloborane and a monolialoborane complex, respectively, The reactions involving H2BBr SMe2 also exhibited a k(2) value, an indication of the presence of a parallel reaction, most likely a rearrangement process facilitating isomerization by way of a a-complex. The moderate Delta H- values accompanied by small AS' values (94 +/- 4 kJ mol(1), 3 +/- 13 J K-1 mol(1) for HBBr2 SMe2; 93 +/- 1kJ mol(-1), - 17 +/- 4 JK(-1) mol(-1) for HBCl2 - SMe2 and in the case of H2BBr +/- SMe2, 90 +/- 13 kJ mol(-1), + 12 +/- 44 JK(-1) mol(-1) and 83 +/- 13 kJ mol(-1), 24 +/- 45 JK(-1) mol(-1), respectively, for the k(2) and k(-2) processes) imply a process that is dissociatively dominated, with the overall mode of activation being interchange dissociative (I-d). (C) 2009 Elsevier Ltd. All rights reserved,

  DOI：

  10.1016/j.poly.2009.01.007