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8-Methoxy-3,8a-dihydroazulen-1(2H)-one | 90266-08-3

中文名称
——
中文别名
——
英文名称
8-Methoxy-3,8a-dihydroazulen-1(2H)-one
英文别名
8-methoxy-3,8a-dihydro-2H-azulen-1-one
8-Methoxy-3,8a-dihydroazulen-1(2H)-one化学式
CAS
90266-08-3
化学式
C11H12O2
mdl
——
分子量
176.215
InChiKey
YOMSUFDMIFQFAY-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:
    348.7±37.0 °C(Predicted)
  • 密度:
    1.12±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.4
  • 重原子数:
    13
  • 可旋转键数:
    1
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.36
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    8-Methoxy-3,8a-dihydroazulen-1(2H)-one三乙胺 作用下, 以 二氯甲烷 为溶剂, 以63%的产率得到8-Methoxy-3,4-dihydroazulen-1(2H)-one
    参考文献:
    名称:
    A reinvestigation of the Rh2(OAc)4-catalysed decomposition of 1-diazo-4-(2-methoxyphenyl)alkan-2-ones: evidence for ionic ‘ring-walk’ rearrangement in norcaradiene derivatives
    摘要:
    在Rh2(OAc)4催化下,1-重氮-4-(2-甲氧基苯基)丁-2-酮(9)及其甲基取代类似物(18)、降冰片二烯酮10和19分别被观察为分子内环丙烷化反应产生的唯一区域异构体,表明金属羰基远离甲氧基的攻击;为了解释10和19转化为二氢氮茚酮15和23,必须将10和19转化为其异构体14和22,并建议这种异构化发生离子“环游”重排。
    DOI:
    10.1039/a809991j
  • 作为产物:
    描述:
    1-diazo-4-(2'-methoxyphenyl)butan-2-one 在 rhodium(II) acetate dimer 作用下, 以 二氯甲烷 为溶剂, 以98%的产率得到8-Methoxy-3,8a-dihydroazulen-1(2H)-one
    参考文献:
    名称:
    通过乙酸铑(II)催化衍生自3-芳基丙酸的α-二氮酮的环化反应,高效合成双环[5.3.0]癸二酮和2-四氢萘酮
    摘要:
    乙酸铑(II)催化的3-芳基丙酸衍生的α-二氮酮的环化反应会生成双环[5.3.0]癸二酮或2-四氢萘酮,具体取决于芳基环的取代方式:前者通过催化转化为后者适量的三氟乙酸。
    DOI:
    10.1039/c39840000129
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文献信息

  • The intramolecular Buchner reaction of aryl diazoketones. Substituent effects and scope in synthesis
    作者:Michael Kennedy、M. Anthony McKervey、Anita R. Maguire、Sarbajna M. Tuladhar、M. Fiona Twohig
    DOI:10.1039/p19900001047
    日期:——
    cyclisation occurring in all cases. When the precursor contains a meta-methoxy substituent, 2-tetralones are obtained directly. The efficient conversion of 3-phenylpropionic acid into trans-1-methylbicyclo[5.3.0]decan-2-one is also described, partial asymmetric synthesis having been realised through the use of rhodium (S)-mandelate as the cyclisation catalyst. Cyclisations of diazoketones derived from
    根据前驱体中芳基环的取代方式,由(II)乙酸催化的3-芳基丙酸衍生的α-二氮酮的环化反应会生成双环[5.3.0]癸二酮或2-四氢酮。前者的产物用三氟乙酸催化转化为后者。已经检测了具有甲基,甲氧基和乙酰氧基取代基的前体,在所有情况下均发生有效的环化。当前体含有间-甲氧基取代基时,直接获得2-四氢酮。还描述了将3-苯基丙酸有效转化为反-1-甲基双环[5.3.0]癸烷-2-酮,已通过使用实现了部分不对称合成(S-扁桃酸酯作为环化催化剂。还研究了由4-苯基丁酸5-苯基戊酸衍生的重氮酮的环化。前者为双环[5.4.0]十一烷体系提供了新的入口,而后者通过CH的插入产生了2,3-二取代的环戊酮。讨论了稠环系统中环庚三烯-降二十碳烯平衡的各个方面。
  • Dynamic Equilibria in the Products of Intramolecular Buchner Additions of Diazoketones to Aryl Rings Bearing Methoxy Substituents
    作者:Anita R. Maguire、Patrick O'Leary、Francis Harrington、Simon E. Lawrence、Alexander J. Blake
    DOI:10.1021/jo015750l
    日期:2001.10.1
    Rhodium carboxylate catalyzed aromatic addition reactions of a range of diazoketones bearing methoxy-substituted aryl rings have been explored. While the existence of norcaradiene-cycloheptatriene equilibria in related compounds is well established, the aromatic addition products in this study display more complex dynamic equilibria due to conjugation with the methoxy group; the experimental evidence for this is discussed in detail. In the azulenone products 21-26 derived from p-methoxy-substituted diazoketones 14-16, the diastereomers interconvert via a spiro intermediate 39. A related mechanistic process in the azulenones 43-46 derived from the o-methoxy-substituted diazoketones 17, 18 interconverts regioisomers, explaining the conflicting reports for the regioselectivity of the cyclization of diazoketone 1. With the m-methoxy-substituted diazoketone 19, involvement of the methoxy group through a different pathway results in fragmentation of the azulenone to form the tetralone 47. With the azulenones 21-26 exclusive trapping of the norcaradiene associated with the less thermodynamically stable diastereomers in a cycloadduct with N-phenylmaleimide is observed. Due to the presence of the activating methoxy substituent on the aromatic ring, the aromatic addition reactions of the diazoketones studied were not very sensitive to the nature of the rhodium catalyst.
  • KENNEDY, MICHAEL;MCKERVEY, M. ANTHONY;MAGUIRE, ANITA R.;TULADHAR, SARBAJN+, J. CHEM. SOC. PT 1. PERKIN TRANS.,(1990) N, C. 1047-1054
    作者:KENNEDY, MICHAEL、MCKERVEY, M. ANTHONY、MAGUIRE, ANITA R.、TULADHAR, SARBAJN+
    DOI:——
    日期:——
  • MCKERVEY, M. A.;TULADHAR, S. M.;TWOHIG, M. F., J. CHEM. SOC. CHEM. COMMUN., 1984, N 2, 129-130
    作者:MCKERVEY, M. A.、TULADHAR, S. M.、TWOHIG, M. F.
    DOI:——
    日期:——
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