4,5-dibromophthalaldehyde | 13212-88-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4,5-dibromophthalaldehyde
• 英文别名: 4,5-Dibromo-1,2-benzenedicarboxaldehyde
• CAS: 13212-88-9
• 化学式: C₈H₄Br₂O₂
• 分子量: 291.927
• InChiKey: YARNVFWVATZEBO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4,5-dibromophthalaldehyde 在 1,4-dibenzyl-1,2,4-triazolium bromide 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 1,2-二氯乙烷 为溶剂， 反应 3.0h， 以92%的产率得到rac-(4bS,9bR,10R)-2,3,7,8-tetrabromo-4b,9b,10-trihydroxy-9b,10-dihydroindeno[2,1-a]inden-5-one
  参考文献：
  名称：

  N-Heterocyclic Carbene Catalyzed Reaction of Phthalaldehydes: Controllable Stereoselective Synthesis of Polyhydroxylated Spiro- and Fused Indenones Dictated by the Structure of NHC Catalysts

  摘要：

  The N-heterocyclic carbene catalyzed stereoselective dimerization reactions of phthalaldehydes produced polyhydroxylated spiro- or fused indenones. The reaction pathways were dictated by the structures of NHC catalysts. Under the catalysis of a imidazole carbene, phthalaldehydes produced dihydroxylspiro[indene-2,1'-isobenzofuran]-3-ones in good to excellent yields, whereas a triazole carbene catalyzed reaction of phthalaldehydes afforded fully cis-trihydroxylindeno[2,1-a]inden-5-ones in high yields. This work not only provides a highly efficient method for the construction of valuable polyhydroxyl substituted indene derivatives that are not easily assembled by other synthetic means but also reflects the versatility of organocatalysis using N-heterocyclic carbenes.

  DOI：

  10.1021/jo102582a

文献信息

• Highly efficient construction of pentacyclic benzo[b]indeno-[1,2,3-de][1,8]naphthyridine derivatives via four-component domino reaction
  作者：Cheng-Pao Cao、Wei Lin、Ming-Hua Hu、Zhi-Bin Huang、Da-Qing Shi

  DOI：10.1039/c3cc43489c

  日期：——

  A series of new octahydrobenzo[b]indeno[1,2,3-de][1,8] naphthyridine and decahydropyrido[2,3,4-gh]phenanthridine derivatives were synthesized via a four-component domino reaction under microwave irradiation. This one-pot transformation, which involved multiple steps and did not require the use of a catalyst, constructed four new C–C bonds, two new C–N bonds, and three new rings, with efficient use of all reactants.

  在微波辐照下，通过四组分多米诺反应合成了一系列新的八氢苯并[b]茚并[1,2,3-de][1,8]萘啶和十氢吡啶并[2,3,4-gh]菲啶衍生物。这种一锅转化过程涉及多个步骤，不需要使用催化剂，可构建四个新的 C-C 键、两个新的 C-N 键和三个新的环，并有效利用了所有反应物。
• The multicomponent reaction of imidazo[1,5-a]pyridine carbenes with phthalaldehydes and dimethyl acetylenedicarboxylate: a facile construction of benzo[d]furo[3,2-b]azepines
  作者：Huan-Rui Pan、Xiao-Rong Wang、Cai-Xia Yan、Zhong-Xin Sun、Ying Cheng

  DOI：10.1039/c0ob00746c

  日期：——

  phthalaldehydes is reported. The imidazo[1,5-a]pyridine carbenes, namely imidazo[1,5-a]pyridine-3-ylidenes, reacted with phthalaldehydes and DMAD under very mild conditions to produce novel fused tricyclic benzo[d]furo[3,2-b]azepine derivatives. The resulting fused heterocyclic compounds are fluorescent and they give an emission around 500 nm with quantum yields (ΦF) being up to 0.81. This study provides

  报道了同时包含N-杂环卡宾和取代的苯二醛的多组分反应的研究。这咪唑并[1,5- a ]吡啶卡宾苯，即咪唑并[1,5 - a ]吡啶-3-吡喃酮，在非常温和的条件下与邻苯二甲醛和DMAD反应生成新的稠合三环苯并[ d ]呋喃[3,2- b ] a庚因衍生物。将所得的稠合杂环化合物是荧光，它们给周围的量子产率（500nm的发射Φ ˚F）至多为0.81。这项研究不仅提供了一种独特的方法来处理稠合的ze庚因衍生物，而这种方法是其他方法不易获得的，而且为复杂的分子骨架开辟了一条新途径。一些产品的长发射波长的荧光特性和高荧光量子产率预示了它们作为光学传感器的潜在应用。