2-bromomethylpropionyl bromide | 56970-80-0

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 酰卤
• 英文名称: 2-bromomethylpropionyl bromide
• 英文别名: 2-bromoisobutyryl bromide；β-bromo-isobutyryl bromide；β-Brom-isobutyrylbromid；3-Brom-2-methylpropionsaeurebromid；beta-Bromoisobutyryl bromide；3-bromo-2-methylpropanoyl bromide
• CAS: 56970-80-0
• 化学式: C₄H₆Br₂O
• 分子量: 229.899
• InChiKey: GHPHCDZRWUIBCE-UHFFFAOYSA-N

物化性质

• 沸点：
  193.3±23.0 °C(Predicted)
• 密度：
  1.941±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  7
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-bromomethylpropionyl bromide 、 茚满 在 aluminum (III) chloride 作用下， 以 二氯甲烷 为溶剂， 反应 6.0h， 以86%的产率得到2-甲基-1,2,3,5-四氢二环戊二烯并苯-1(2H)-酮
  参考文献：
  名称：

  [EN] GROUP 4 METAL COMPLEXES CONTAINING 4-ARYL-SUBSTITUTED, TRICYCLIC INDENYL DERIVATIVES
  [FR] COMPLEXES DE METAUX DU GROUPE 4 CONTENANT DES DERIVES INDENYLES TRICYCLIQUES 4-ARYLE-SUBSTITUES

  摘要：

  揭示了由三环4-芳基取代的茚基配体组成的第四组金属受限几何配合物，特别是1,5,6,7-四氢-4-芳基-s-茚烯-1-基配体，其催化衍生物，制备这些配合物的方法以及它们作为烯烃聚合催化剂组分的用途。

  公开号：

  WO2004013149A1
• 作为产物：
  描述：

  异丁酸 在 磷化氢 、 溴 作用下， 生成 2-bromomethylpropionyl bromide
  参考文献：
  名称：

  Studies on the Mechanism of Chugaev and Acetate Thermal Decompositions. III. cis and trans-2-Methyl-1-indanol

  摘要：

  DOI：

  10.1021/ja01145a023

文献信息

• [EN] ORGANOMETALLIC TRANSITION METAL COMPOUND, BISCYCLOPENTADIENYL LIGAND SYSTEM, CATALYST SYSTEM AND PREPARATION OF POLYOLEFINS<br/>[FR] COMPOSE DE METAL DE TRANSITION ORGANOMETALLIQUE, SYSTEME DE LIGAND BISCYCLOPENTADIENYL, SYSTEME CATALYTIQUE ET FABRICATION DE POLYOLEFINES
  申请人：BASELL POLYOLEFINE GMBH

  公开号：WO2005058916A3

  公开（公告）日：2005-11-03
• Pudowik; Biktimirowa, Zhurnal Obshchei Khimii, 1957, vol. 27, p. 2104,2105,2107; engl.Ausg.S.2161,2162,2164
  作者：Pudowik、Biktimirowa

  DOI：——

  日期：——
• Impact of Initiator Spacer Length on Grafting Polystyrene from Silica Nanoparticles
  作者：Daniel Sunday、Sara Curras-Medina、David L. Green

  DOI：10.1021/ma1004259

  日期：2010.6.8

  Using atom transfer radical polymerization (ATRP), we synthesized hybrid organic/inorganic nanoparticles consisting of a silica core and a polystyrene brush. The brushes were grafted from the nanoparticles with three different initiators, termed 3-BIDS, 11-BIDS, and 15-BIDS, consisting respectively of a 3-, 11-, or 15-carbon spacer separating an ethoxylated silane from a brominated initiator end group. The initiators were characterized using H-1 NMR and C-13 NMR. Surface modification studies with all three initiators were performed to optimize their attachment, producing particles with dense covalently attached initiator monolayers with up to 2.6 initiators/nm(2). Polymers were then grafted from the particles using ATRP, the polymerization kinetics were characterized using gas chromatography (GC), and the final products were characterized using thermogravimetric analysis (TGA) and gel permeation chromatography (GPC). Analysis of the kinetics show an approximately identical rate of styrene conversion from all three initiators while GPC results show that the molecular weight of the polymers grown from the 11-BIDS monolayer increases faster than that grown from 3-BIDS or 15-BIDS. We also found that the graft densities of polystyrene are on average 0.5 chains/nm(2) greater for particles modified with 3-BIDS or 15-BIDS at 0.7 chains/nm(2) than for 11-BIDS at 0.2 chains/nm(2). Our results indicate that the roughly 3-fold drop in graft density for the particles modified with the 11-BIDS is most likely due to a change in the conformation of the 11-BIDS monolayer.