3,4-diphenylcyclobutane-1,2-dicarboxamide | 302897-39-8

• 分子结构分类: 有机化合物 - 木脂素、新木脂素和相关化合物 - 环丁烷木脂素
• 英文名称: 3,4-diphenylcyclobutane-1,2-dicarboxamide
• 英文别名: (1R,2S,3R,4S)-3,4-diphenylcyclobutane-1,2-dicarboxamide
• CAS: 302897-39-8
• 化学式: C₁₈H₁₈N₂O₂
• 分子量: 294.353
• InChiKey: VXWGDBODDLBPTI-SYMSYNOKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  86.2
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3,4-diphenylcyclobutane-1,2-dicarboxamide 在 盐酸 作用下， 以81%的产率得到β-truxinic acid
  参考文献：
  名称：

  Compelled Orientational Control of the Solid-State Photodimerization of trans -Cinnamamides: Dicarboxylic Acid as a Non-covalent Linker

  摘要：

  The 2:1 hydrogen-bonded cocrystals 1a.ox, 1a.su, 1a.pht, 1a.fu, 1b.ox, 1c.ox, 1d.ox between trans-cinnamamides (la-ld) and dicarboxylic acids (ox, su, gl, fu, pht) were prepared and characterized by IR and powder X-ray techniques. The crystal structures of la pht, la ox and la fu were solved by single crystal X-ray diffraction. Phthalic acid (pht) caused beta-type photodimerization of trans-cinnamamide (la) in the cocrystal and functioned as a non-covalent licker like gauche 1,2-diamines in photodimerization of trans-cinnamic acids. Oxalic acid (ox) enforced la to take a bilayer structure that is suitable for beta-type photodimerization. In the case of fumaric acid (fu), cross photodimerization with la occurred to give a cycloadduct 4. For the cocrystals la pht and la fu, pedal-like motion was assumed to occur prior to the dimerization. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(00)00505-6
• 作为产物：
  描述：

  β-truxinic acid-dichloride 在 氨 作用下， 生成 3,4-diphenylcyclobutane-1,2-dicarboxamide
  参考文献：
  名称：

  Stoermer; Laage, Chemische Berichte, 1921, vol. 54, p. 100

  摘要：

  DOI：

文献信息

• General and Efficient Intermolecular [2+2] Photodimerization of Chalcones and Cinnamic Acid Derivatives in Solution through Visible‐Light Catalysis
  作者：Tao Lei、Chao Zhou、Mao‐Yong Huang、Lei‐Min Zhao、Bing Yang、Chen Ye、Hongyan Xiao、Qing‐Yuan Meng、Vaidhyanathan Ramamurthy、Chen‐Ho Tung、Li‐Zhu Wu

  DOI：10.1002/anie.201708559

  日期：2017.11.27

  which are building blocks for a variety of biologically active molecules and natural products. However, most attempts at the above [2+2] addition have focused on solid‐state, molten‐state, or host–guest systems under ultraviolet‐light irradiation in order to overcome the competition of facile geometric isomerization of nonrigid olefins. We report a general and simple method to realize the intermolecular

  [2 + 2]光环加成反应（例如，查耳酮和肉桂酸衍生物的二聚化）是构建环丁烷的独特策略，环丁烷是多种生物活性分子和天然产物的基础。然而，为了克服非刚性烯烃的简便几何异构化的竞争，大多数对上述[2 + 2]的尝试都集中在紫外光照射下的固态，熔融态或主客体系统。我们报告了一种通用且简单的方法来实现这些无环烯烃的分子间[2 + 2]二聚反应，以在可见光下以高度区域和非对映选择性的方式构建环丁烷，这为长期存在的问题提供了有效的解决方案。
• Donor–acceptor fluorophores as efficient energy transfer photocatalysts for [2 + 2] photodimerization
  作者：Qing-An Wu、Feng Chen、Chen-Chao Ren、Xue-Fen Liu、Hao Chen、Liang-Xuan Xu、Xiao-Cong Yu、Shu-Ping Luo

  DOI：10.1039/c9ob02735a

  日期：——

  Mild [2 + 2] photodimerization of enone substrates was induced by donor-acceptor fluorophores. Enone substrates were activated efficiently for anti-head to head dimerizations with a high yield (up to 83%) and high selectivity. The adjustable excited state potential also allows donor-acceptor fluorophores to be used for isomerization of the above substrates, confirming the potential of donor-acceptor

  供体-受体荧光团诱导了烯酮底物的轻度[2 + 2]光二聚化。高效率（高达83％）和高选择性的Enone底物被有效激活，以防止头对头二聚化。可调的激发态电势还允许将供体-受体荧光团用于上述底物的异构化，证实了供体-受体荧光团作为能量转移光催化剂的潜力。