1-<(methoxytrimethylsilyl)methyl>naphthalene | 83469-34-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 1-<(methoxytrimethylsilyl)methyl>naphthalene
• 英文别名: [Methoxy(naphthalen-1-yl)methyl]-trimethylsilane
• CAS: 83469-34-5
• 化学式: C₁₅H₂₀OSi
• 分子量: 244.409
• InChiKey: VXTHCOHHTJBWOP-UHFFFAOYSA-N

物化性质

• 熔点：
  40.5-43.0 °C
• 沸点：
  301.0±22.0 °C(Predicted)
• 密度：
  0.982±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 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：

  1-<(methoxytrimethylsilyl)methyl>naphthalene 以5%的产率得到
  参考文献：
  名称：

  ENGLER, T. A.;SHECHTER, H., TETRAHEDRON LETT., 1982, 23, N 27, 2715-2718

  摘要：

  DOI：
• 作为产物：
  描述：

  (甲氧基甲基)三甲基硅烷 在 溴 作用下， 以 四氢呋喃 、 四氯化碳 、 乙醚 为溶剂， 反应 1.0h， 生成 1-<(methoxytrimethylsilyl)methyl>naphthalene
  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

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。
• Intramolecular Behaviors of Anthryldicarbenic Systems:  Dibenzo[<i>b</i>,<i>f</i>]pentalene and 1<i>H</i>,5<i>H</i>-Dicyclobuta[<i>d</i><i>e,kl</i>]anthracene
  作者：J. Kirby Kendall、Harold Shechter

  DOI：10.1021/jo010404p

  日期：2001.10.1

  9,10-Bis[methoxy(trimethylsilyl)methyl]anthracenes (24), synthesized from 9,10-dilithioanthracene (26) and bromomethoxytrimethylsilylmethane (27, 2 equiv), decompose (550-650 degreesC/10(-3) mmHg) carbenically to dibenzo[b,f]pentalene (28, > 48%). 9,10-Anthryldicarbenes 39 or their equivalents convert to pentalene 28 rather than di-peri-cyclobutanthracenes 30 and 31, benzobiphenylene 32, or extended rearrangement products 33-38. Formation of 28 from 24 raises questions with respect to the behavior of 1,3,4,6-cycloheptatetraenyl-1-carbenes 49, 2,4,5,7-cyclooctatetraenylidene 51, 2,5,7-cyclooetatriene-1,4-diylidene 52, 1,2,4,5,7-cyclooetapentaene 53, and bicyclo[4.1.0]heptatrienyl-1-carbenes 54 and to carbon-skeleton and hydrogen rearrangements of anthryldicarbenes 39 and/or their equivalents at various temperatures. 1,5-Bis [methoxy(trimethylsilyl)methyl] anthracenes (25), prepared from 1,5-diiodoanthracene (63) and methoxytrimethylsilylmethylzinc bromide (57,2 equiv) as catalyzed by PdCl2(PPh3)(2), yield the di-peri-carbenic reaction product 1H,5H-dicyclobuta[de,kl]-anthracene (30, > 40%) on pyrolysis at 550-650 degreesC/10(-3) mmHg. Proof of structure and various aspects of the mechanisms of formation of 30 are discussed.
• Synthesis of <i>peri</i>-Cyclobutarenes by Thermolysis of [Methoxy(trimethylsilyl)methyl]arenes
  作者：Thomas A. Engler、Harold Shechter

  DOI：10.1021/jo981104j

  日期：1999.6.1

  [Methoxy(trimethylsilyl)methyl]arenes are readily prepared by reactions of chlorotrimethylsilane with (alpha-methoxy)arenylmethyllithium reagents as obtained from (methoxymethyl)arenes and t-BuLi. The [methoxy(trimethylsilyl)methyl] arenes eliminate methoxytrimethylsilane at 525-675 degrees C/0.05-0.10 mm to yield peri-cyclobutarenes as derived from arenylcarbenes. Of importance is the fact that the initial arenylcarbenes generated insert into adjacent peri C-H bonds and/or isomerize to other arenylcarbenes that insert into their peri C-H bonds to give peri-cyclobutarenes. Thus, flash-vacuum pyrolysis of 1-[methoxy(trimethylsilyl)methyl]naphthalene (13) at 575-675 degrees C/0.05-0.10 mm yields 1H-cyclobuta[de]naphthalene (6, up to 39%) in practical quantities. 2-[Methoxy(trimethylsilyl)methyl]naphthalene (23) also affords 6 as a major thermolysis product. At 510 degrees C/ 0.05-0.10 mm 4-methoxy-1-[methoxy(trimethylsilyl)methyl]naphthalene (29) decomposes to 4-methoxy-1H-cyclobuta[de]naphthalene (31, 46%). Under similar conditions, 2-methoxy-1-[methoxy(trimethylsilyl)methyl]naphthalene (33) converts to 1,2-dihyrdronaphtho[2,1-b]furan (35, 64%) and naphtho[2,1-b]furan (36, 31%), presumably by insertion of 2-methoxy-1-naphthylcarbene (34) into a C-H bond of its o-methoxy group and then dehydrogenation of the resultant dihydrofuran. Further, 1-[methoxy(trimethylsilyl)methyl]-6-methylnaphthalene (39) pyrolyzes (510 degrees C/0.10-0.20 mm) to 6-methyl-1-naphthylcarbene (40), which isomerizes in part to 7-methyl-1-naphthylcarbene (49); carbenes 40 and 49 then undergo peri C-H insertion to give 3-methyl-1H-cyclobuta[de]naphthalene (41) and 2-methyl-1H-cyclobuta[de]naphthalene (42) in an 8:1 ratio and a combined yield of 44%. The pyrolytic method is particularly valuable for preparing higher peri single carbon atom bridged arenes such as 4H-cyclobuta[jk]phenanthrene (53, 65%) and 3H-cyclobuta[cd]pyrene (59, 86%).