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Intermediates for the synthesis of indole alkaloids. Synthesis of tetrahydrocarbazole derivatives

✍ Scribed by Y. Ergün; N. Bayraktar; S. Patir; G. Okay

Publisher
Journal of Heterocyclic Chemistry
Year
2000
Tongue
English
Weight
306 KB
Volume
37
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

The synthesis of new precursors 8 and 15 for the synthesis of tetracyclic indole alkaloids were described. Many new intermediates 4‐7 and 9‐14 have also been synthesized.

📜 SIMILAR VOLUMES

Intermediates for the synthesis of tetra
Intermediates for the synthesis of tetracyclic indole alkaloids. Synthesis of 4-aminotetrahydrocarbazole derivatives
✍ Süleyman Patir; Görol Okay; Ahmet Gülce; Bekir Salih; Tuncer Hökelek 📂 Article 📅 1997 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 299 KB

## Abstract An efficient method for the synthesis of 4‐aminotetrahydrocarbazole derivatives from 2,3‐dihydrospiro‐[1__H__‐carbazole‐1,2′‐(1,3)‐dithiolan]‐4‐(9__H__)‐one 1 is described. The structure of compound 6 has been confirmed by X‐ray structure analysis.

Aldehyde Intermediates in the Synthesis
Aldehyde Intermediates in the Synthesis of Tacamine-Type Indole Alkaloids: Preparation of (±)-apotacamine
✍ Arto Tolvanen; David Din Belle; Mauri Lounasmaa 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 German ⚖ 394 KB

## Abstract The synthesis of aldehyde intermediates suitable for the preparation of indole alkaloids of the tacamine (1) type is described. The four possible aldehydes 4–7 were prepared from methyl 5‐ethylnicotinate (8) in a few simple steps using a base‐catalyzed epimerization as the final step (_