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6-methylene-2,4-cyclohexadienylideneketene | 38382-55-7

中文名称
——
中文别名
——
英文名称
6-methylene-2,4-cyclohexadienylideneketene
英文别名
——
6-methylene-2,4-cyclohexadienylideneketene化学式
CAS
38382-55-7
化学式
C8H6O
mdl
——
分子量
118.135
InChiKey
CDQQKQHPTCCPPZ-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:
    189.7±7.0 °C(Predicted)
  • 密度:
    0.97±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2
  • 重原子数:
    9
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    17.1
  • 氢给体数:
    0
  • 氢受体数:
    1

SDS

SDS:3c35542d365df2333c1ade4a62796b87
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反应信息

  • 作为反应物:
    参考文献:
    名称:
    Generation of 6-methylene-2,4-cyclohexadienylidene ketene by flash photolysis of benzocyclobutenone in aqueous solution and study of the reactions of this ketene in that medium
    摘要:
    在水溶液中闪光光解苯并环戊烯酮产生了一种微秒寿命的瞬态物种,其衰减速率在高氯酸、氢氧化钠和缓冲溶液中的酸度范围[H+] 1×10^-13-10^0 M被测量。这产生了一个速率轮廓、同位素效应和缓冲行为,典型的是酮反应,加上产物鉴定,有助于将这种瞬态物种识别为6-亚甲基-2,4-环己二烯基丙酮,它是由苯并环戊烯酮的四元环开环反应形成的。将该丙酮与其饱和类似物—戊二烯基丙酮的反应速率进行比较,产生了一些预期的和一些意外的结果。关键词:环丁酮化学,电环开环,丙酮水合,速率轮廓,溶剂同位素效应。
    DOI:
    10.1139/v03-038
  • 作为产物:
    参考文献:
    名称:
    通过快速光解法研究苯并环丁烯酮的热加成反应
    摘要:
    通过苯并环丁烯酮1的快速光解已生成了邻醌类乙烯酮2。分子间加成反应2与环化2→竞争的动力学研究表明,添加甲醇和亲二烯体的取代基效果显着不同。
    DOI:
    10.1016/s0040-4039(01)80210-0
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文献信息

  • Thermal addition reactions to benzocyclobutenones studied by flash photolysis
    作者:P. Schiess、M. Eberle、M. Huys-Francotte、J. Wirz
    DOI:10.1016/s0040-4039(01)80210-0
    日期:1984.1
    Ortho-quinoid vinylketenes 2 have been generated through flash photolysis of benzocyclobutenones 1. A kinetic study of intermolecular addition reactions of 2 competing with the recyclization 2 → 1 reveals strikingly different substituent effects for the addition of methanol and of dienophiles.
    通过苯并环丁烯酮1的快速光解已生成了邻醌类乙烯酮2。分子间加成反应2与环化2→竞争的动力学研究表明,添加甲醇和亲二烯体的取代基效果显着不同。
  • Generation of 6-methylene-2,4-cyclohexadienylidene ketene by flash photolysis of benzocyclobutenone in aqueous solution and study of the reactions of this ketene in that medium
    作者:Y Chiang、A J Kresge、H -Q Zhan
    DOI:10.1139/v03-038
    日期:2003.6.1

    Flash photolysis of benzocyclobutenone in aqueous solution produced a transient species with a microsecond lifetime whose rates of decay were measured in perchloric acid, sodium hydroxide, and buffer solutions over the acidity range [H+] 1 × 10–13 – 100 M. This produced a rate profile, isotope effects, and buffer behaviour typical of ketene reactions, and that, together with product identification, served to identify this transient as 6-methylene-2,4-cyclohexadienylidene ketene, formed by electrocyclic opening of the four-membered ring of benzocyclobutenone. Comparison of rates of reaction of this ketene with those of its saturated analog, pentamethyleneketene, produced some expected as well as some unexpected results. Key words: cyclobutenone chemistry, electrocyclic ring opening, ketene hydration, rate profile, solvent isotope effects.

    在水溶液中闪光光解苯并环戊烯酮产生了一种微秒寿命的瞬态物种,其衰减速率在高氯酸、氢氧化钠和缓冲溶液中的酸度范围[H+] 1×10^-13-10^0 M被测量。这产生了一个速率轮廓、同位素效应和缓冲行为,典型的是酮反应,加上产物鉴定,有助于将这种瞬态物种识别为6-亚甲基-2,4-环己二烯基丙酮,它是由苯并环戊烯酮的四元环开环反应形成的。将该丙酮与其饱和类似物—戊二烯基丙酮的反应速率进行比较,产生了一些预期的和一些意外的结果。关键词:环丁酮化学,电环开环,丙酮水合,速率轮廓,溶剂同位素效应。
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同类化合物

邻苯二甲酰基 邻甲基二苯甲酮自由基阳离子 [6]轴烯 7,7,8,8-四氰基对苯二醌二甲烷 7,7,8,8-四氰基喹啉二甲烷 四硫富瓦烯盐 5,6-二亚甲基环己-1,3-二烯 2-氟-7,7,8,8-四氰喹啉并二甲烷 2-[4-[[4-[二(2-羟基乙基)氨基]苯基]-氰基亚甲基]-2,3,5,6-四氟环己-2,5-二烯-1-亚基]丙二腈 2,5-二甲基-7,7,8,8-四氰醌二甲烷 2,5-二氟-7,7,8,8-四氰基苯醌二甲烷 2,3,5,6-四氟-7,7',8,8'-四氰二甲基对苯醌 (1Z)-2-氯-1-(3-甲基-6-亚甲基-2,4-环己二烯-1-亚基)乙醇 (1E)-1-(6-亚甲基-2,4-环己二烯-1-亚基)乙醇 3,6-bis(1,3-dithiolan-2-ylidene)-1,2,4,5-cyclohexanetetrone Sodium;2-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile 2-pentadecyl-7,7,8,8-tetracyanoquinodimethane α,α'-bis(tributylstannyl)-o-xylene Li{(NC)2CC6H4C(CN)2-p} 7,7,8-tricyano-8-(1-piperidinyl)quinodimethane methyl 4-(1-diazo-2,2,2-trifluoroethyl)benzoate 1,4-Cyclohexadiene, 1,4-dimethyl-3,6-bis(methylene)- p-Chinobis(benzo-1,3-dithiol) 3,4-dimethylenebicyclo[4.2.0]octa-1,5-diene 1,2,4,5-tetramethylenebenzene 7-(p-Aminophenyl)-7,8,8-tricyanochinodimethid tetracyanodiphenoquinodimethane bis<1,2,5>selenadiazolotetracyanoquinodimethan 4,8-bis(1,3-dithiol-2-ylidene)-4H,8H-benzo<1,2-c:4,5-c'>bis<1,2,5>selenadiazole 2-(4-dicyanomethylenecyclohexa-2,5-dienylidene)imidazolidine [1-{[4-(dicyanomethylene)cyclohexa-2,5-dien-1-ylidene][4-(dimethylamino)phenyl]-methyl}-3-(trimethylsilyl)prop-2-yn-1-ylidene]malononitrile (4-{2-butyl-3,3-dicyano-1-[4-(dimethylamino)phenyl]prop-2-en-1-ylidene}cyclohexa-2,5-dien-1-ylidene)malononitrile (4-{2-(dicyanomethylene)-1,4-bis[4-(dimethylamino)phenyl]but-3-yn-1-ylidene}-cyclohexa-2,5-dien-1-ylidene)malononitrile 2-dodecyl-7,7,8,8-tetracyanoquinodimethane 3,6--1,4-cyclohexadien 4,4'-bis(4,4,5,5-tetramethyl-1-yloxy-3-oxidoimidazolin-2-yl)phenyldiazomethane Hexa-propyliden-cyclohexan α-methyl-p-xylylene o-dimethylquinodimethane 3,5-Bismethylen-4-vinyl-1-cyclohexen Cyclohexane, hexaethylidene- [4-(4,4,5,5-tetramethyl-1-yloxy-3-oxidoimidazolin-2-yl)phenyl]phenyldiazomethane (5E,6E)-5,6-bis(bromomethylidene)cyclohexa-1,3-diene 2-octadecyl-7,7,8,8-tetracyanoquinodimethane 2,2-diphenyl-2-stanna-indane chloro-tetracyanoquinodimethane 2-Brom-5-methyl-7,7,8,8-tetracyanochinodimethan 2-bromo-7,7,8,8-tetracyanoquinodimethane α,α,α',α'-tetrafluoro-p-xylylene di(2,6-dimethyl-4-cyanophenyl)carbene