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2-溴-3-甲氧基-1,3-二甲基环戊烯 | 720700-03-8

中文名称
2-溴-3-甲氧基-1,3-二甲基环戊烯
中文别名
——
英文名称
2-bromo-3-methoxy-1,3-dimethylcyclopentene
英文别名
2-bromo-3-methoxy-1,3-dimethyl-cyclopentene
2-溴-3-甲氧基-1,3-二甲基环戊烯化学式
CAS
720700-03-8
化学式
C8H13BrO
mdl
——
分子量
205.095
InChiKey
WVAISMDMDCNYET-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:
    207.5±40.0 °C(Predicted)
  • 密度:
    1.31±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.7
  • 重原子数:
    10
  • 可旋转键数:
    1
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.75
  • 拓扑面积:
    9.2
  • 氢给体数:
    0
  • 氢受体数:
    1

反应信息

  • 作为反应物:
    描述:
    2-溴-3-甲氧基-1,3-二甲基环戊烯 在 sodium hydride 作用下, 以 正戊烷 为溶剂, 反应 3.0h, 生成 1,4-dimethylfulvene
    参考文献:
    名称:
    2-Lithio-3-methoxy-1,3-dimethylcyclopentene: A Synthetic Equivalent of 2-Lithio-1,3-dimethylcyclopentadiene and Useful Synthon for 6-Alkyl-1,4-dimethylfulvenes andansa-Metallocene Complexes
    摘要:
    2-溴-3-甲氧基-1,3-二甲基环戊烯(3)通过MeLi对2-溴-3-甲基-2-环戊烯-1-酮的1,2-加成反应,在80克规模下合成,收率为85%。随后对MeI的原位处理。将n-BuLi加入溴化合物3的乙醚溶液中,得到2-锂代-3-甲氧基-1,3-二甲基环戊烯(1)。连续将RCHO [R = CH3, (CH2)2CH3, CH(CH3)2, C(CH3)3, H] 和MeI添加到锂化合物中,经过酸性水洗处理,得到环戊二烯化合物2-[CHR(OMe)]-1,3-Me2C5H3,收率为60%-84%。用NaH或KH对环戊二烯进行处理,得到1,4,6-三甲基富烯、6-n-丙基-1,4-二甲基富烯、6-异丙基-1,4-二甲基富烯、6-叔丁基-1,4-二甲基富烯和1,4-二甲基富烯,收率为67%-83%。通过将锂化合物1与新合成的1,4-二甲基富烯反应,可以短时间内以64%的收率合成ansa-金属烯复合物的配体CH2C(1,3-Me2Cp)2ZrCl2。
    DOI:
    10.1055/s-2004-822324
  • 作为产物:
    描述:
    2-溴-3-甲基-2-环戊烯-1-酮碘甲烷 在 methyllithium lithium bromide 、 sodium hydride 作用下, 以 四氢呋喃N,N-二甲基甲酰胺 为溶剂, 反应 1.0h, 以85%的产率得到2-溴-3-甲氧基-1,3-二甲基环戊烯
    参考文献:
    名称:
    2-Lithio-3-methoxy-1,3-dimethylcyclopentene: A Synthetic Equivalent of 2-Lithio-1,3-dimethylcyclopentadiene and Useful Synthon for 6-Alkyl-1,4-dimethylfulvenes andansa-Metallocene Complexes
    摘要:
    2-溴-3-甲氧基-1,3-二甲基环戊烯(3)通过MeLi对2-溴-3-甲基-2-环戊烯-1-酮的1,2-加成反应,在80克规模下合成,收率为85%。随后对MeI的原位处理。将n-BuLi加入溴化合物3的乙醚溶液中,得到2-锂代-3-甲氧基-1,3-二甲基环戊烯(1)。连续将RCHO [R = CH3, (CH2)2CH3, CH(CH3)2, C(CH3)3, H] 和MeI添加到锂化合物中,经过酸性水洗处理,得到环戊二烯化合物2-[CHR(OMe)]-1,3-Me2C5H3,收率为60%-84%。用NaH或KH对环戊二烯进行处理,得到1,4,6-三甲基富烯、6-n-丙基-1,4-二甲基富烯、6-异丙基-1,4-二甲基富烯、6-叔丁基-1,4-二甲基富烯和1,4-二甲基富烯,收率为67%-83%。通过将锂化合物1与新合成的1,4-二甲基富烯反应,可以短时间内以64%的收率合成ansa-金属烯复合物的配体CH2C(1,3-Me2Cp)2ZrCl2。
    DOI:
    10.1055/s-2004-822324
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文献信息

  • [EN] METHOD OF PREPARING FULVENE COMPOUNDS AND METHOD OF PREPARING ANSA-METALLOCENE COMPOUNDS USING THE COMPOUNDS<br/>[FR] PROCEDE DE PREPARATION DE COMPOSES FULVENE ET PROCEDE DE PREPARATION DE COMPOSES ANSA-METALLOCENE AU MOYEN DE CES COMPOSES
    申请人:LG CHEMICAL LTD
    公开号:WO2005035470A1
    公开(公告)日:2005-04-21
    There are provided a method of simply preparing a 1,4,6-substituted, 1,4-substituted, 1,6-substituted, or 1-substituted fulvene compound, the intermediates of the fulvene compound, and a method of preparing an ansa-metallocene compound in which two cyclopentadienyl ligands are bridged by one carbon and there are substituents only at positions adjacent to the bridging point of a cyclopentadienyl ligand, using the fulvene compound.
    提供了一种简单制备1,4,6-取代,1,4-取代,1,6-取代或1-取代富烯化合物的方法,该方法还提供了富烯化合物的中间体以及使用富烯化合物制备两个环戊二烯基配体由一个碳桥接并且仅在环戊二烯基配体的桥接点相邻位置有取代基的安萨-金属茂化合物的方法。
  • Preparation of ansa-metallocenes for production of poly(α-olefin) lubricants
    作者:Ji Hae Park、Young Eun Jang、Jong Yeob Jeon、Min Jeong Go、Junseong Lee、Sung Kwan Kim、Sang-Ick Lee、Bun Yeoul Lee
    DOI:10.1039/c4dt00997e
    日期:——
    An ansa-zirconocene bearing methyl substituents at all positions adjacent to the bridgehead [(–C(Ph)HC(Ph)H–)(η5-2,5-Me2C5H2)2ZrCl2] (4) was prepared in high yields (78%) through the reductive dimerization of 1,4-dimethyl-6-phenylfulvene utilizing ZrCl2·DME generated in situ. The structure of 4 was subsequently confirmed using X-ray crystallography. 4 exhibited excellent catalytic performance with regard to 1-decene oligomerization, which was carried out with the intention of preparing lubricant base stocks. High activities (21 × 106 g mol−1 Zr h−1 activity; TON = 150 000; TOF = 42 s−1) were observed at temperatures as high as 120 °C and the oligomer distribution was appropriate for lubricant application. The simulated distillation (SIMDIS) data confirmed that a wide range of oligomers were formed, ranging from the dimer (2-mer) to 20-mer. A minimal amount of the dimer and oligomers larger than the 10-mer was formed (13 and 25 wt%, respectively). Alternatively, a typical unbridged complex such as (η5-nBuC5H4)2ZrCl2 primarily produced dimers (54 wt%), whereas the ansa-zirconocene (EBI)ZrCl2 primarily produced oligomers larger than 10-mer (62 wt%). The methyl substituents at the positions adjacent to the bridgehead in 4 played a significant role in the catalytic performance.
    通过1,4-二甲基-6-苯基富烯的还原二聚化,利用原位生成的ZrCl2·DME,制备了在所有相邻位置都带有甲基取代基的ansa-锆茂[(–C(Ph)HC(Ph)H–)(Μ5-2,5-Me2C5H2)2ZrCl2] (4),且收率很高(78%)。随后利用X射线晶体学确认了4的结构。4在1-癸烯低聚反应中表现出优异的催化性能,该反应的目的是制备润滑油基础油。在高达120°C的温度下观察到高活性(21×106 g mol–1 Zr h–1活性;TON = 150000;TOF = 42 s–1),且低聚物的分布适合润滑油应用。模拟蒸馏(SIMDIS)数据证实,形成了从二聚体(2-mer)到20-mer的各种低聚物。形成了极少量的二聚体和大于10-mer的低聚物(分别占13%和25%)。另外,典型的非桥联络合物(Μ5-nBuC5H4)2ZrCl2主要产生二聚体(54%),而ansa-锆茂(EBI)Zr
  • Method of preparing fulvene compounds and method of preparing ansa-metallocene compounds using the compounds
    申请人:Park Whan Young
    公开号:US20050080296A1
    公开(公告)日:2005-04-14
    There are provided a method of simply preparing a 1,4,6-substituted, 1,4-substituted, 1,6-substituted, or 1-substituted fulvene compound, the intermediates of the fulvene compound, and a method of preparing an ansa-metallocene compound in which two cyclopentadienyl ligands are bridged by one carbon and there are substituents only at positions adjacent to the bridging point of a cyclopentadienyl ligand, using the fulvene compound.
    提供了一种简单制备1,4,6-取代,1,4-取代,1,6-取代或1-取代富烯化合物的方法,富烯化合物的中间体以及使用富烯化合物制备两个环戊二烯基配体由一个碳桥接且仅在环戊二烯基配体的桥接点相邻位置有取代基的ansa-金属茂化合物的方法。
  • Ansa-metallocene compound, process of preparing the same, and process of preparing polyolefin using the same
    申请人:Lee Hoon Choong
    公开号:US20060069221A1
    公开(公告)日:2006-03-30
    Provided are a bridged metallocene compound particularly suitable for copolymerization of ethylene and alpha-olefin or cyclic olefin, a process of preparing the metallocene compound, and a process of preparing polyolefin using the metallocene compound. The bridged metallocene compound has low steric hindrance and good (co)polymerization activity, and thus, exhibits good activity in copolymerization of ethylene and alpha-olefin such as 1-hexene or 1-octene. Furthermore, the process of preparing the bridged metallocene compound is simplified, and thus, suitable for mass production.
    提供了一种特别适用于乙烯和α-烯烃或环烯烃共聚的桥联金属茂化合物,以及制备该金属茂化合物的方法和使用该金属茂化合物制备聚烯烃的方法。该桥联金属茂化合物具有低立体位阻和良好的(共)聚合活性,因此在乙烯和α-烯烃(如1-己烯或1-辛烯)共聚中表现出良好的活性。此外,制备桥联金属茂化合物的方法简化,因此适合大规模生产。
  • METHOD OF PREPARING FULVENE COMPOUNDS AND METHOD OF PREPARING ANSA-METALLOCENE COMPOUNDS USING THE COMPOUNDS
    申请人:LG Chem, Ltd.
    公开号:EP1673321B1
    公开(公告)日:2014-09-17
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