octa-1,3,5,7-tetraene | 1482-91-3

• 分子结构分类: 有机化合物 - 碳氢化合物 - 不饱和烃
• 英文名称: octa-1,3,5,7-tetraene
• 英文别名: Octatetraen；Octatetraen-(1,3,5,7)；Octa-1,3,5,7-tetraen；1,3,5,7-octatetraene；1,3,5,7-Octatetraen
• CAS: 1482-91-3
• 化学式: C₈H₁₀
• 分子量: 106.167
• InChiKey: VXQUABLSXKFKLO-UHFFFAOYSA-N

物化性质

• 熔点：
  50°C
• 沸点：
  134.11°C (rough estimate)
• 密度：
  0.8580 (estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  8
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 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：

  octa-1,3,5,7-tetraene 、 溶剂黄146 、 alkaline earth salt of/the/ methylsulfuric acid 生成 正辛烷
  参考文献：
  名称：

  Woods; Schwartzman, Journal of the American Chemical Society, 1949, vol. 71, p. 1398

  摘要：

  DOI：
• 作为产物：
  描述：

  1,5-已二烯 在 potassium tert-butylate 作用下， 以 四氢呋喃 、 丙酮 、 叔丁醇 为溶剂， 反应 3.0h， 生成 octa-1,3,5,7-tetraene
  参考文献：
  名称：

  .alpha.-Haloalkanesulfonyl bromides in organic synthesis. 5. Versatile reagents for the synthesis of conjugated polyenes, enones, and 1,3-oxathiole 1,1-dioxides

  摘要：

  DOI：

  10.1021/ja00275a051

文献信息

• Electronic energy levels in a homologous series of unsubstituted linear polyenes
  作者：Kevin L. D'Amico、Christopher Manos、Ronald L. Christensen

  DOI：10.1021/ja00526a003

  日期：1980.3

  Abstract: Absorption, emission, and excitation spectra of 1,3,5,7-octatetraene, 1,3,5,7,9-decapentaene, and 1,3,5,7,9,1 l-dode- cahexaene have been obtained in room temperature solutions and 77 K glasses. All spectra exhibit the characteristic gap be- tween the origin of the strongly allowed absorption ('Ag - 'B,) and the origin of fluorescence ('Ag* - 'A!): Comparison with results previously obtained

  摘要：1,3,5,7-辛四烯、1,3,5,7,9-十碳烯和 1,3,5,7,9,1-l-十二碳六烯的吸收、发射和激发光谱具有在室温溶液和 77 K 玻璃中获得。所有光谱都表现出强烈允许吸收的起源 ('Ag - 'B,) 和荧光起源 ('Ag* - 'A!) 之间的特征差距：与先前获得的甲基取代多烯结果的比较显示'B,-'Ag* 能隙是取代度的敏感函数。溶剂效应研究已用于将未取代多烯的转变能外推到气相条件。对于四烯、戊烯和己烯，'Bu-IAg* 能量差分别为 6380、7050 和 7420 cm-I。这些结果根据多烯电子状态的当前理论描述进行了讨论。1. 引言 线性共轭 T 电子系统近年来受到了新的实验和理论兴趣。这种兴趣在很大程度上是由多烯电子态在几个重要的光生物过程中发挥的重要作用激发的。对于凝聚相中的长多烯（具有三个以上双键的），现在有大量证据表明存在低位的、低于 'B 的 'Ag*
• Synthesis of five- and six-coordinate alkylidene complexes of the type Mo(CHR)(NAr)[OCMe(CF3)2]2Sx and their use as living ROMP initiators or Wittig reagents
  作者：Harold H. Fox、Jin Kyu Lee、Lee Y. Park、Richard R. Schrock

  DOI：10.1021/om00027a028

  日期：1993.3

  Addition of a slight excess of 4-methoxy-1-hexene to Mo(CHCMe2Ph)(NAr)(ORF6)2 (1a) or Mo(CHCMe3)(NAr)(ORF6)2 (1b) in pentane (ORF6 = OCMe(CF3)2) yielded crystalline, red-orange anti-Mo[CHCH2CH(OMe)CH2CH3](NAr)(ORF6)2 (2). A similar reaction was used to prepare the difunctional complex anti-[(ArN)(ORF6)2Mo=CHCH2CH(OMe)]2C6H4(3). Styrene reacts with la or lb in DME over a period of 12 h to afford orange syn-Mo(CHPh)(NAr)-(ORF6)2(DME) (4) in good yield. 4-(Dimethylamino)styrene and 2,4,6-trimethoxystyrene react analogously to yield dark red syn-Mo(CH-4-C6H4-NMe2)(NAr)(ORF6)2 (DME) (5) and red anti-Mo[CH-2,4,6-C6H2-(OMe)3](NAr)(ORF6)2(DME) (6). 4 also can be synthesized from Mo(NAr)2Cl2(DME) via Mo(NAr)2(CH2Ph)2 and Mo(CHPh)(NAr)(OTf)2(DME). The reaction between 1 and 0.5 equiv of octatetraene in DME afforded syn-(DME)(RF60)2(ArN)Mo(CH)6-Mo(NAr)(ORF6)2(DME) (9a). A related complex, syn-(Et2O)(RF60)2(ArN)Mo(CH)6Mo(NAr)-(ORF6)2(Et2O) (9b), could be prepared directly in diethyl ether or by dissolving 9a in diethyl ether. anti-(THF)(RF60)2(ArN)Mo(CH)6Mo(NAr)(ORF6)2(THF) (9c) was observed upon dissolving 9a in THF. Addition of 4 equiv of LiO-t-Bu and 2 equiv of quinuclidine (quin) to 9a yields metallic green (quin)(t-BuO)2(ArN)Mo(CH)6Mo(NAr)(0-t-Bu)2(quin) (9d). 1,4-Divinylbenzene reacts smoothly with la or lb to give another conjugated difunctional alkylidene complex, 1,4-[(DME)(RF60)2(ArN)MoCH]2C6H4 (10a). Mo(CH2)(NAr)(ORF6)2(DME) (11a) could be generated and observed by H-1 NMR upon adding an excess of ethylene to a solution of lb in DME-d10 in a septum-sealed NMR tube. Addition of 2,2'-bipyridine (bpy) to 11a yielded isolable Mo(CH2)(NAr)(ORF6)2(bpy) (11b). 2,3-Dicarbomethoxynorbornadiene (100 equiv) could be polymerized in a living manner in DME using lb, 4, 5, 9a, 9b, or 10a as the initiator. 2,3-Bis(trifluoromethyl)norbomadiene (100 equiv) was also polymerized in a living manner by la in DME. Addition of an excess of LiO-t-Bu (8 equiv) to a solution of 3 in toluene, followed by 200 equiv of methyltetracyclododecene (MTD), gave low-polydispersity poly-MTD (M(W)/M(n) = 1.03) in 93% yield. Complexes 4,5,9a, 9b, and 10a react cleanly with pivaldehyde or benzaldehyde in CD2Cl2 or DME. A combination of Wittig reactions was used to prepare the di-tert-butyl-capped polyenes(t-Bu)(CH=CH)n(t-Bu)(n=4,6,8). The techniques described here should expand the opportunities for making polymers via living ROMP reactions and, in particular, should allow one to introduce conjugated sequences with a known, fixed length into a variety of polymers and to attach functional groups to both ends of a polymer.
• .alpha.-Haloalkanesulfonyl bromides in organic synthesis. 5. Versatile reagents for the synthesis of conjugated polyenes, enones, and 1,3-oxathiole 1,1-dioxides
  作者：Eric. Block、Mohammad. Aslam、Venkatachalam. Eswarakrishnan、Kassu. Gebreyes、John. Hutchinson、Rajeshwari. Iyer、Jean Alex. Laffitte、Alan. Wall

  DOI：10.1021/ja00275a051

  日期：1986.7
• Woods; Schwartzman, Journal of the American Chemical Society, 1949, vol. 71, p. 1398
  作者：Woods、Schwartzman

  DOI：——

  日期：——