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Intramolecular diels-alder reactions of pyrano[3,4-b]indol-3-ones

✍ Scribed by Christopher J. Moody; Pritom Shah; Philip Knowles


Publisher
Elsevier Science
Year
1988
Tongue
French
Weight
172 KB
Volume
29
Category
Article
ISSN
0040-4039

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📜 SIMILAR VOLUMES


Diels-alder reactions of pyrano[3,4-b]in
✍ P. Van Doren; D. Vanderzande; S. Toppet; G. Hoornaert 📂 Article 📅 1989 🏛 Elsevier Science 🌐 French ⚖ 701 KB

The role of the substitution pattern on the stability of the obtained 1.2-dihydreearbazolee is interpreted In terms of electronic and steric effects on the aromatization to the corresponding carbazoles. CH and 2-CHb bonds, a small coupling constant of 1,6 Hz is observed. A dihedral angle of about 26

Diels-Alder reactions of 1-phenylpyrano[
✍ Pindur, Ulf ;Erfanian-Abdoust, Houshang 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 337 KB

## Abstract 3‐Indolylalkanoic acids 2 react with benzoic acid anhydride under catalysis of Et~2~O ‐ ZnCl~2~ and mild conditions to furnish the 1‐phenyl‐substituted pyrano[3,4‐__b__]indol‐3‐ones 1c, 1d, and 3a, 3b. Products 1c, 1d, and 3b may be converted into the novel functionalized carbazoles 4 a