dimethyl (E)-1-(azulen-1'-yl)ethene-1,2-dicarboxylate | 58150-91-7

• 分子结构分类: 有机化合物 - 碳氢化合物 - 不饱和烃
• 英文名称: dimethyl (E)-1-(azulen-1'-yl)ethene-1,2-dicarboxylate
• 英文别名: dimethyl (E)-1-(azulen-3-yl)ethene-1,2-dicarboxylate；azulene；(1-Azulenyl) fumarsaeure-dimethylester；dimethyl (E)-2-azulen-1-ylbut-2-enedioate
• CAS: 58150-91-7
• 化学式: C₁₆H₁₄O₄
• 分子量: 270.285
• InChiKey: BJURABVOGFWVQF-GXDHUFHOSA-N

物化性质

• 沸点：
  429.1±24.0 °C(Predicted)
• 密度：
  1.204±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  丁炔二酸二甲酯 、 奥苷菊环 在 三氟乙酸 作用下， 以 1,2,3,4-四氢萘 为溶剂， 反应 336.0h， 以2%的产率得到dimethyl 2a,8b-dihydro-8b-<(Z)-1,2-bis(methoxycarbonyl)ethenyl>cyclopentazulene-1,2-dicarboxylate
  参考文献：
  名称：

  Formation of Unusual Products from the Acid-Catalyzed Reaction of Azulenes with Dimethyl Acetylenedicarboxylate

  摘要：

  The reaction of guaiazulene (4) and dimethyl acetylenedicarboxylate (ADM) in tetralin or toluene, catalyzed by 5 mol-% of trifluoroacetic acid (TFA) at ambient temperature, leads to the formation of the corresponding heptalene-4,5-dicarboxylate 6 and a guaiazulenyl-substituted 2,2a,4a,8b-tetrahydrocyclopent[cd]azulene derivative 7 beside the expected guaiazulenyl-substituted ethenedicarboxylates (E)-5 and (2)-5 as main products (Scheme 2). The structure of 7 was unequivocally established by an X-ray crystal-structure analysis ( Fig. I). Precursor of 7 must be the 2a,4a-dihydrocyclopent[cd]azulene-3,4-dicarboxylate 9 which reacts, under TFA catalysis, with a second molecule of 4 (Scheme 3). No formation of products of type 7 has been observed in the TFA-catalyzed reaction of 4,6,8-trimethyl- and 1,4,6,8-tetramethylazulene (13 and 16, respectively) and ADM (Scheme 4). On the other hand, the TFA-catalyzed reaction of azulene (18) itself and ADM at ambient temperature gives rise to a whole variety of new products (Scheme 5), the major part of which is derived from dimethyl 2a,4a-dihydrocyclopent[cd]azulene 3,4-dicarboxylate (25) as the main intermediate (Scheme 6). Nevertheless, for the formation of the 2a,4a,6,8b-tetrahydrocyclobut[a]azulene derivatives (E)-24a and (E)-24b, a corresponding 2a,8b-dihydro precursor 29 has to be postulated as crucial intermediate (Scheme 8).

  DOI：

  10.1002/(sici)1522-2675(19981216)81:12<2201::aid-hlca2201>3.0.co;2-7

文献信息

• Excursion to the World of Heptacyclic Compounds Made of Azulenes and Acetylenedicarboxylates
  作者：Yi Chen、Erja Lehto、Peter Uebelhart、Anthony Linden、Hans-Jürgen Hansen

  DOI：10.1002/hlca.201500082

  日期：2015.7

  Azulenes and acetylenedicarboxylates react under acid catalysis (Brønsted or Lewis) and form (2aRS,8aSR)‐2a,8a‐dihydrocyclopenta[cd]azulene‐1,2‐dicarboxylates as intermediate products, which then dimerize by central bond‐formation between C(2a1) and C(2′a1) and various peripheral C,C′‐atoms of the dihydroazulene fragments, depending on the substituents present. The reactions are often accompanied by

  Azulenes和炔二羧酸酯在酸催化下（Brønsted或Lewis）反应并形成（2a RS，8a SR）-2a，8a-dihydrocyclopenta [ cd ] azulene-1,2-二羧酸酯作为中间产物，然后通过中心键之间的二聚作用而二聚C（2a 1）和C（2'a 1）以及二氢氮杂烯片段的各种外围C，C'-原子，具体取决于存在的取代基。这些反应通常伴随有副产物的形成，例如2-（azulen-1-基）富马酸酯和马来酸酯，以及其他由主要中间体的H-移位引起的副产物。两个四氢环戊并[之间H-位移CD还发现了七环结构的] azulene部分。
• Ru-Catalyzed Heptalene Formation from Azulenes and Dimethyl Acetylenedicarboxylate
  作者：Andreas Johannes Rippert、Hans-J�rgen Hansen

  DOI：10.1002/hlca.19920750707

  日期：1992.11.11

  It is shown that azulenes react with dimethyl acetylenedicarboxylate (ADM) in solvents such as toluene, dioxan, or MeCN in the presence of 2 mol-% [RuH2(PPh3)4] already at temperatures as low as 100° and lead to the formation of the corresponding heptalene-1,2-dicarboxylates in excellent yields (Tables 1 and 2). The Ru-catalyzed reaction of ADM with 1-(tert-butyl)-4,6,8-trimethylazulene (31) takes

  结果表明，在2 mol％[RuH 2（PPh 3）4 ]的存在下，天青石已经在溶剂（如甲苯，二恶烷或MeCN中）与乙二甲基二羧酸二甲酯（ADM）反应，而该温度已低至100°C，并导致形成相应的庚烯1,2-二羧酸庚酯的产率很高（表1和2）。ADM与1-（的钌催化反应叔丁基）-4,6,8-trimethylazulene（31）发生即使在室温下，得到初级三环加成产物32和其热复古-狄尔斯-阿尔德产物4,6,8-三甲基az-1,2-二羧酸二甲酯（21；方案4）。在MeCN中100°时，32的产率为90％的21，而只有10％的相应的庚烯。这些观察结果表明，[RuH 2（PPh 3）4 ]催化了从天青石和ADM热形成庚烷的第一步，该第一步发生在非极性溶剂（例如，四氢化萘或十氢化萘中），温度> 180°（参见方案1）。