1H-cyclobutaanthracene | 252-16-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 蒽
• 英文名称: 1H-cyclobutaanthracene
• 英文别名: 1H-cyclobuta(de)anthracene；1H-cyclobuta[de]anthracene；tetracyclo[7.5.1.02,7.013,15]pentadeca-1(15),2,4,6,8,10,12-heptaene
• CAS: 252-16-4
• 化学式: C₁₅H₁₀
• 分子量: 190.244
• InChiKey: BUMMEUYUOVKHDL-UHFFFAOYSA-N

物化性质

• 沸点：
  378.8±12.0 °C(Predicted)
• 密度：
  1.257±0.06 g/cm3(Predicted)
• 熔点：
  60-70 °C (decomp)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  1H-cyclobutaanthracene 650.0 ℃ 、0.13 Pa 条件下， 生成 2H-cyclopentafluorene
  参考文献：
  名称：

  Preparative Methodology and Pyrolytic Behavior of Anthrylmonocarbenes:  Synthesis and Chemistry of 1H-Cyclobuta[de]anthracene

  摘要：

  This study involves (1) the behavior of organolithium reagents (1-6), (2) development of efficient methods for preparing 9(7)- and 1(8)-[methoxy(trimethylsilyl)methyl] anthracenes and their analogues, (3) the intramolecular chemistry of the 9(9)- and 1(l0)-anthrylcarbenes generated by pyrolyses of 7 and 8, respectively, and (4) investigation of thermal behavior and bromination of the 1H-cyclobuta[de]anthracene (11) obtained from 9 or 10. alpha-Methoxy-9-anthrylmethyllithium (1), prepared from 9-(methoxymethyl)anthracene (14) and t-BuLi in TMEDA/Et2O/pentane, reacts at C-10 with D2O, chlorotrimethylsilane, dimethyl sulfate, benzoyl chloride, acetaldehyde, benzaldehyde, and acetone to give, after neutralization, 9,10-dihydro-9-(methoxymethylene)-10-substituted- anthracenes 15 and 21a-f. However, lithiation of 9-(thiomethoxymethyl)anthracene (25) with t-BuLi/TMEDA/Et2O/pentane occurs by an apparent radical-anion displacement process to give 9-anthrylmethyllithium (3), which then reacts with chlorotrimethylsilane to yield 9-(trimethylsilylmethyl)anthracene (28). Similarly, 28 is formed from 25 and from 9-(trimethylsilyloxymethyl)-anthracene (29) with lithium and then chlorotrimethylsilane. The electrophiles D2O, dimethyl sulfate, and benzaldehyde react with 3 at its methyl and its C-10 positions. [Methoxy(trimethylsilyl)methyl]arenes 40-42 and 7 are obtained by reactions of their aryllithium and arylmagnesium bromide precursors with bromo(methoxy)methyltrimethylsilane (39). 1-(Methoxymethyl)anthracene (45) is converted conveniently by t-BuLi and chlorotrimethylsilane to 8. Flash-vacuum pyrolyses of 7 and 8 yield 11 preparatively; 11 then thermolyzes to 2H-cyclopenta[jk]fluorene (46). Decomposition of 9-deuterio-10-[methoxy(trimethylsilyl)methyl]anthracene (55) at 650 degrees C/10(-3) mm results in 10(56)- and 1(57)-deuteriocyclobutanthracenes, thus revealing that the 10-deuterio-9-anthrylcarbene inserts to give 56 and also isomerizes extensively before yielding 57. Of note is that 56 isomerizes thermally by C-10-D movement to form 2-deuteriocyclopentafluorene 58, 57 rearranges by Clo-H movement to yield deuteriocyclopentafluorene 59, and 58 and 59 equilibrate 1,5-sigmatropically. Possible mechanisms for the isomerizations of 56 and 57 are outlined. Further, bromine adds rapidly to 11 to form 9,10-dibromo-9,10-dihydro-1H-cyclobuta[de]anthracene (94), which eliminates HBr on warming to yield 10-bromo-1H-cyclobuta[de]anthracene (95).

  DOI：

  10.1021/jo981105b
• 作为产物：
  描述：

  9-氰基蒽 在 sodium azide 、 氯化铵 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 90.0~600.0 ℃ 、13.33 Pa 条件下， 反应 360.0h， 生成 1H-cyclobutaanthracene
  参考文献：
  名称：

  卡宾重排中环丙烯中间体的力场-SCF计算。与实验比较

  摘要：

  苯并环丙烯，环丙烷[ b ]萘，双环[4.1.0]庚-2,4,7-三烯和苯甲酰化衍生物的形成热和几何形状已通过组合力场-SCF程序进行了计算。双环庚烯相对于异构芳基卡宾通过苯甲酰化是稳定的，并且由于失去芳香性和/或增加的应变而不稳定。1-Naphthylcarbene，2- naphthylcarbene，分别用对应的芳烃醛甲苯磺酰腙的钠盐，重氮甲烷，或5- aryltetrazoles的气相热解产生的9- phenanthrylcarbene和9- anthrylcarbene，并重新安排以cyclobuta [ DE ]萘（21），环丁酮[ jk ]菲（33）和环丁酮[ de分别为]蒽（38）。10,11-二氢二苯并[ ad ]环庚基-5-亚烷基（15），类似地由5-重氮-10,11-二氢-5H-二苯并[ ad ]环庚烯（39）生成，重排为5a，9b-二氢-5 H-苯并[3,4]环丁[1

  DOI：

  10.1016/s0040-4020(01)96400-2

文献信息

• Peri-methanoarenes by thermolysis of [methoxy(arenyl)methyl]trimethylsilanes
  作者：T.A. Engler、H. Shechter

  DOI：10.1016/s0040-4039(00)87439-0

  日期：——

  Practical synthesis of varied peri-methanoarenes have been developed.

  已经开发了各种环甲基芳烃的实用合成方法。
• ENGLER, T. A.;SHECHTER, H., TETRAHEDRON LETT., 1982, 23, N 27, 2715-2718
  作者：ENGLER, T. A.、SHECHTER, H.

  DOI：——

  日期：——
• Force field-SCF calculations on cyclopropene intermediates in carbene rearrangements. Comparison with experiment
  作者：Curt Wentrup、Claude Mayor、Jürgen Becker、Hans Jörg Lindner

  DOI：10.1016/s0040-4020(01)96400-2

  日期：1985.1

  derivatives have been calculated with a combined force field-SCF program. The bicycloheptatrienes are stabilized relative to the isomeric arylcarbenes by benzannelation, and destabilized by loss of aromaticity and/or increased strain. 1-Naphthylcarbene, 2-naphthylcarbene, 9-phenanthrylcarbene and 9-anthrylcarbene were generated by gas-phase pyrolysis of the corresponding arene aldehyde tosylhydrazone sodium

  苯并环丙烯，环丙烷[ b ]萘，双环[4.1.0]庚-2,4,7-三烯和苯甲酰化衍生物的形成热和几何形状已通过组合力场-SCF程序进行了计算。双环庚烯相对于异构芳基卡宾通过苯甲酰化是稳定的，并且由于失去芳香性和/或增加的应变而不稳定。1-Naphthylcarbene，2- naphthylcarbene，分别用对应的芳烃醛甲苯磺酰腙的钠盐，重氮甲烷，或5- aryltetrazoles的气相热解产生的9- phenanthrylcarbene和9- anthrylcarbene，并重新安排以cyclobuta [ DE ]萘（21），环丁酮[ jk ]菲（33）和环丁酮[ de分别为]蒽（38）。10,11-二氢二苯并[ ad ]环庚基-5-亚烷基（15），类似地由5-重氮-10,11-二氢-5H-二苯并[ ad ]环庚烯（39）生成，重排为5a，9b-二氢-5 H-苯并[3,4]环丁[1
• Preparative Methodology and Pyrolytic Behavior of Anthrylmonocarbenes:  Synthesis and Chemistry of 1<i>H</i>-Cyclobuta[<i>de</i>]anthracene
  作者：J. Kirby Kendall、Thomas A. Engler、Harold Shechter

  DOI：10.1021/jo981105b

  日期：1999.6.1

  This study involves (1) the behavior of organolithium reagents (1-6), (2) development of efficient methods for preparing 9(7)- and 1(8)-[methoxy(trimethylsilyl)methyl] anthracenes and their analogues, (3) the intramolecular chemistry of the 9(9)- and 1(l0)-anthrylcarbenes generated by pyrolyses of 7 and 8, respectively, and (4) investigation of thermal behavior and bromination of the 1H-cyclobuta[de]anthracene (11) obtained from 9 or 10. alpha-Methoxy-9-anthrylmethyllithium (1), prepared from 9-(methoxymethyl)anthracene (14) and t-BuLi in TMEDA/Et2O/pentane, reacts at C-10 with D2O, chlorotrimethylsilane, dimethyl sulfate, benzoyl chloride, acetaldehyde, benzaldehyde, and acetone to give, after neutralization, 9,10-dihydro-9-(methoxymethylene)-10-substituted- anthracenes 15 and 21a-f. However, lithiation of 9-(thiomethoxymethyl)anthracene (25) with t-BuLi/TMEDA/Et2O/pentane occurs by an apparent radical-anion displacement process to give 9-anthrylmethyllithium (3), which then reacts with chlorotrimethylsilane to yield 9-(trimethylsilylmethyl)anthracene (28). Similarly, 28 is formed from 25 and from 9-(trimethylsilyloxymethyl)-anthracene (29) with lithium and then chlorotrimethylsilane. The electrophiles D2O, dimethyl sulfate, and benzaldehyde react with 3 at its methyl and its C-10 positions. [Methoxy(trimethylsilyl)methyl]arenes 40-42 and 7 are obtained by reactions of their aryllithium and arylmagnesium bromide precursors with bromo(methoxy)methyltrimethylsilane (39). 1-(Methoxymethyl)anthracene (45) is converted conveniently by t-BuLi and chlorotrimethylsilane to 8. Flash-vacuum pyrolyses of 7 and 8 yield 11 preparatively; 11 then thermolyzes to 2H-cyclopenta[jk]fluorene (46). Decomposition of 9-deuterio-10-[methoxy(trimethylsilyl)methyl]anthracene (55) at 650 degrees C/10(-3) mm results in 10(56)- and 1(57)-deuteriocyclobutanthracenes, thus revealing that the 10-deuterio-9-anthrylcarbene inserts to give 56 and also isomerizes extensively before yielding 57. Of note is that 56 isomerizes thermally by C-10-D movement to form 2-deuteriocyclopentafluorene 58, 57 rearranges by Clo-H movement to yield deuteriocyclopentafluorene 59, and 58 and 59 equilibrate 1,5-sigmatropically. Possible mechanisms for the isomerizations of 56 and 57 are outlined. Further, bromine adds rapidly to 11 to form 9,10-dibromo-9,10-dihydro-1H-cyclobuta[de]anthracene (94), which eliminates HBr on warming to yield 10-bromo-1H-cyclobuta[de]anthracene (95).