2-ethyl-2-(hydroxymethyl)-1-(phenylsulfonyl)indole | 143774-57-6

• 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: 2-ethyl-2-(hydroxymethyl)-1-(phenylsulfonyl)indole
• 英文别名: [1-(Benzenesulfonyl)-3-ethylindol-2-yl]methanol
• CAS: 143774-57-6
• 化学式: C₁₇H₁₇NO₃S
• 分子量: 315.393
• InChiKey: LUGUQCUKRRBMGC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  67.7
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-ethyl-2-(hydroxymethyl)-1-(phenylsulfonyl)indole 在 manganese(IV) oxide 作用下， 以 二氯甲烷 为溶剂， 反应 36.0h， 以70%的产率得到1-(phenylsulfonyl)-3-ethylindole-2-carboxaldehyde
  参考文献：
  名称：

  Syntheses and Diels-Alder cycloaddition reactions of 4H-furo[3,4-b]indoles. A regiospecific Diels-Alder synthesis of ellipticine

  摘要：

  Seven examples of the novel 4H-furo[3,4-b]indole ring system (3-9)-a stable, synthetic analogue of indole-2,3-quinodimethane-have been synthesized in 6-8 steps from simple indoles in overall yields of 21-28%. These 4H-furo[3,4-b]indoles undergo Diels-Alder reactions with several dienophiles (dimethyl acetylenedicarboxylate, N-phenylmaleimide, benzyne), including ethyl acrylate, which reacts regiospecifically with furoindole 4 to afford a single carbazole ester (59). This result, predicted by molecular orbital calculations, was used to design and execute a regiospecific Diels-Alder synthesis of the antitumor alkaloid ellipticine (63). Thus, the trimethylsilyl triflate-induced reaction between furoindole 4 and dihydropyridone 68b is greater-than-or-equal-to 99% regioselective and affords lactam 70b in 89% yield. Further manipulation gives ellipticine (63) with no detectable (<1%) isoellipticine (64) in the crude product.

  DOI：

  10.1021/jo00048a021
• 作为产物：
  描述：

  3-乙基吲哚 在 正丁基锂 作用下， 反应 15.25h， 生成 2-ethyl-2-(hydroxymethyl)-1-(phenylsulfonyl)indole
  参考文献：
  名称：

  Syntheses and Diels-Alder cycloaddition reactions of 4H-furo[3,4-b]indoles. A regiospecific Diels-Alder synthesis of ellipticine

  摘要：

  Seven examples of the novel 4H-furo[3,4-b]indole ring system (3-9)-a stable, synthetic analogue of indole-2,3-quinodimethane-have been synthesized in 6-8 steps from simple indoles in overall yields of 21-28%. These 4H-furo[3,4-b]indoles undergo Diels-Alder reactions with several dienophiles (dimethyl acetylenedicarboxylate, N-phenylmaleimide, benzyne), including ethyl acrylate, which reacts regiospecifically with furoindole 4 to afford a single carbazole ester (59). This result, predicted by molecular orbital calculations, was used to design and execute a regiospecific Diels-Alder synthesis of the antitumor alkaloid ellipticine (63). Thus, the trimethylsilyl triflate-induced reaction between furoindole 4 and dihydropyridone 68b is greater-than-or-equal-to 99% regioselective and affords lactam 70b in 89% yield. Further manipulation gives ellipticine (63) with no detectable (<1%) isoellipticine (64) in the crude product.

  DOI：

  10.1021/jo00048a021

文献信息

• Syntheses and Diels-Alder cycloaddition reactions of 4H-furo[3,4-b]indoles. A regiospecific Diels-Alder synthesis of ellipticine
  作者：Gordon W. Gribble、Daniel J. Keavy、Deborah A. Davis、Mark G. Saulnier、Benjamin Pelcman、Timothy C. Barden、Mukund P. Sibi、Erik R. Olson、Joseph J. BelBruno

  DOI：10.1021/jo00048a021

  日期：1992.10

  Seven examples of the novel 4H-furo[3,4-b]indole ring system (3-9)-a stable, synthetic analogue of indole-2,3-quinodimethane-have been synthesized in 6-8 steps from simple indoles in overall yields of 21-28%. These 4H-furo[3,4-b]indoles undergo Diels-Alder reactions with several dienophiles (dimethyl acetylenedicarboxylate, N-phenylmaleimide, benzyne), including ethyl acrylate, which reacts regiospecifically with furoindole 4 to afford a single carbazole ester (59). This result, predicted by molecular orbital calculations, was used to design and execute a regiospecific Diels-Alder synthesis of the antitumor alkaloid ellipticine (63). Thus, the trimethylsilyl triflate-induced reaction between furoindole 4 and dihydropyridone 68b is greater-than-or-equal-to 99% regioselective and affords lactam 70b in 89% yield. Further manipulation gives ellipticine (63) with no detectable (<1%) isoellipticine (64) in the crude product.