4,9<1',2'>-Benzeno-3a,4,9,9a-tetrahydro-4,9-dihydroxy-2-methyl-1H-benzisoindole-1,3(2H)-dione | 92755-93-6

• 分子结构分类: 有机化合物 - 木脂素、新木脂素和相关化合物 - 芳基四氢萘木脂素
• 英文名称: 4,9<1',2'>-Benzeno-3a,4,9,9a-tetrahydro-4,9-dihydroxy-2-methyl-1H-benzisoindole-1,3(2H)-dione
• 英文别名: 4,9-o-benzeno-2,3,3a,4,9,9a-hexahydro-4,9-dihydroxy-2-methyl-benzisoindole-1(H),3-dione；1,8-dihydroxy-17-methyl-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2,4,6,9,11,13-hexaene-16,18-dione
• CAS: 92755-93-6
• 化学式: C₁₉H₁₅NO₄
• 分子量: 321.332
• InChiKey: YJKOBWYOZIISLW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.72
• 重原子数：
  24.0
• 可旋转键数：
  0.0
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  77.84
• 氢给体数：
  2.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  N-甲基马来酰亚胺 、 蒽醌 在 aluminium(III) iodide 作用下， 以 乙腈 为溶剂， 反应 0.5h， 以84%的产率得到4,9<1',2'>-Benzeno-3a,4,9,9a-tetrahydro-4,9-dihydroxy-2-methyl-1H-benzisoindole-1,3(2H)-dione
  参考文献：
  名称：

  Dutta, Dilip K; Boruah, Romesh C; Sandhu, Jagir S, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 11, p. 780 - 781

  摘要：

  DOI：

文献信息

• Anthracenediols as reactive dienes in base-catalyzed cycloadditions: reduction-cycloaddition reactions of anthraquinones
  作者：Michael Koerner、Bruce Rickborn

  DOI：10.1021/jo00004a009

  日期：1991.2

  Anthraquinone is readily reduced to the hydroquinone (9,10-anthracenediol), which under basic conditions serves as a reactive diene for cyloaddition purposes. Catalytic hydrogenation in pyridine solvent provides convenient access to this species, and efficient reactions occur with dienophiles in situ, provided that they are sufficiently reactive. Thus N-methylmaleimide (NMM) gives the bicyclic bridgehead diol in near quantitative yield when the H2/Pd reduction of anthraquinone is carried out in pyridine containing 1 equiv of NMM. Fumaronitrile and maleonitrile similarly give high yields in stereospecific reactions, with the dienophile geometry retained in the cycloadduct. Less reactive dienophiles suffer competitive reduction. Dimethyl fumarate in situ gives cycloadduct (stereospecifically) in only 35-60% yield, with the remainder of the dienophile reduced to dimethyl succinate. Stepwise reduction followed by addition of dienophile leads to a higher yield in this and related reactions. The benzologues 5,12-naphthacenedione and 6,13-pentacenedione undergo analogous reactions with NMM, leading to novel bridgehead diols. The monimine of anthraquinone exhibits NMR features attributed to syn/anti isomerism. Under neutral or mildly basic conditions, the aromatic protons on the ring proximal to the NH are clearly distinguished (500 MHz) from those on the distal ring. The addition of acid causes rapid syn/anti NH exchange leading to time averaged symmetry. This imine behaves similarly to anthraquinone in the reduction/cycloaddition sequence. For example, with NMM in situ an essentially quantitative yield of the novel bridgehead amino alcohol adduct is obtained. Related benzologue reactions and attempts to extend the sequence to the oxime and methylene analogues of anthraquinone are described. Base-catalyzed ring opening of the cycloadduct of NMM/anthracenediol leads to a novel retro-bis-aldol reaction, resulting in the formation of anthraquinone and N-methylsuccinimide.
• KOERNER, MICHAEL;RICKBORN, BRUCE, J. ORG. CHEM., 54,(1989) N, C. 6-9
  作者：KOERNER, MICHAEL、RICKBORN, BRUCE

  DOI：——

  日期：——
• KOERNER, MICHAEL;RICKBORN, BRUCE, J. ORG. CHEM., 56,(1991) N, C. 1373-1381
  作者：KOERNER, MICHAEL、RICKBORN, BRUCE

  DOI：——

  日期：——
• Dutta, Dilip K; Boruah, Romesh C; Sandhu, Jagir S, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1992, vol. 31, # 11, p. 780 - 781
  作者：Dutta, Dilip K、Boruah, Romesh C、Sandhu, Jagir S

  DOI：——

  日期：——