dimethyl 6,7,8,9-tetrahydro-5H-benzocycloheptene-2,3-dicarboxylate

• 分子结构分类: 有机化合物 - 苯类化合物
• 英文名称: dimethyl 6,7,8,9-tetrahydro-5H-benzocycloheptene-2,3-dicarboxylate
• 英文别名: dimethyl 6,7,8,9-tetrahydro-5H-benzo[7]annulene-2,3-dicarboxylate
• 化学式: C₁₅H₁₈O₄
• 分子量: 262.306
• InChiKey: SOIZLDIABRYQDI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  dimethyl 6,7,8,9-tetrahydro-5H-benzocycloheptene-2,3-dicarboxylate 在 lithium aluminium tetrahydride 、 水 作用下， 以 四氢呋喃 、 乙酸乙酯 为溶剂， 以52%的产率得到[3-(hydroxymethyl)-6,7,8,9-tetrahydro-5H-benzo[7]annulen-2-yl]methanol
  参考文献：
  名称：

  Differential Reactivity Pattern of Hybrid o-Quinodimethane Precursors: Strategic Expansion to Annulated Benzocycloalkanes via Rongalite

  摘要：

  A hybrid benzocyclobutene (BCB) molecular frames embedding sultine or sulfone moiety has been synthesized via utilization of rongalite. The selective Diels-Alder reaction has been realized at sultine or sulfone terminus in the hybrid BCB system to prepare functionalized BCB molecular frames. The methodology has been generalized for assembling various benzocycloalkanes containing a sultine unit and the strategy has been expanded to generate various annulated benzocycloalkanes.

  DOI：

  10.1021/jo900658z
• 作为产物：
  描述：

  1,8-壬二炔 、 丁炔二酸二甲酯 在 carbon monoxide,cobalt,cyclopenta-1,3-diene 作用下， 以 正辛烷 、 甲苯 为溶剂， 反应 24.0h， 以20%的产率得到dimethyl 6,7,8,9-tetrahydro-5H-benzocycloheptene-2,3-dicarboxylate
  参考文献：
  名称：

  Differential Reactivity Pattern of Hybrid o-Quinodimethane Precursors: Strategic Expansion to Annulated Benzocycloalkanes via Rongalite

  摘要：

  A hybrid benzocyclobutene (BCB) molecular frames embedding sultine or sulfone moiety has been synthesized via utilization of rongalite. The selective Diels-Alder reaction has been realized at sultine or sulfone terminus in the hybrid BCB system to prepare functionalized BCB molecular frames. The methodology has been generalized for assembling various benzocycloalkanes containing a sultine unit and the strategy has been expanded to generate various annulated benzocycloalkanes.

  DOI：

  10.1021/jo900658z

文献信息

• Palladium-catalyzed aromatization of β-bromovinyl aldehydes with alkenes
  作者：Chan Sik Cho、Daksha B. Patel、Sang Chul Shim

  DOI：10.1016/j.tet.2005.08.001

  日期：2005.10

  β-Bromovinyl aldehydes, which are readily available from ketones and PBr3/DMF/CHCl3, are aromatized with suitably electron withdrawing group substituted alkenes in THF at 125 °C in the presence of a catalytic amount of a palladium catalyst along with a base.

  容易从酮和PBr 3 / DMF / CHCl 3中获得的β-溴乙烯基醛在催化量的钯催化剂和碱存在下，在125°C下用适当的吸电子基团取代的烯烃在THF中芳构化。
• Domino 6π-Electrocyclization/Diels-Alder Reactions on 1,6-Disubstituted (E,Z,E)-1,3,5-Hexatrienes: Versatile Access to Highly Substituted Tri- and Tetracyclic Systems
  作者：Regina von Essen、Daniel Frank、Hans Wolf Sünnemann、Denis Vidović、Jörg Magull、Armin de Meijere

  DOI：10.1002/chem.200500560

  日期：2005.11.4

  Diels-Alder reaction, when performed as a one-pot domino process, provided direct access to Diels-Alder products of intermediately formed 6pi-electrocyclization products, for example from the 1,3,5-hexatrienes 1a,b, 2a,b, 3b and TCNE to the corresponding tricyclic products 17a,b, 14a,b, 18b in moderate to good yields (27-80%) depending on the nature of the alkoxycarbonyl group. Such sequential reactions with

  （E，Z，E）-1,3,5-己三烯1a，2a，b和3b在加热到200-215摄氏度后的15-30分钟内经历6pi电环化。为了稳定，类似的环戊烯-和环庚烯-退火的衍生物7a和9b在后处理过程中很容易脱氢成相应的芳族化合物10a和12b。环己二烯衍生物8a，b用于与4-苯基-3H-1,2,4-三唑啉-3,5-二酮（PTAD）和四氰基乙烯（TCNE）的热Diels-Alder反应中，得到预期的[4 + 2 ]环加合物13a和14a的收率很高（60％和78％）。最初形成的8a环加合物和乙酰二羧酸二甲酯（DMAD）进行随后的Diels-Alder逆反应，得到四氢萘11b（47％）。在高压（10 kbar）下，环加合物15a是在室温下形成的，可以44％的收率分离出来。TCNE和在高压下具有8a的N-苯基马来酰亚胺也导致了[4 + 2]环加合物14a和16a的高收率（60％和77％）。6pi电环化反应和