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- Zhang, Xiaofei, et al. Show all 6 Authors
- Tetrahedron letters 2016 v.57 pp. 4145-4148
- alkaloids; chemical reactions; chemical structure; ethanol; heat; potassium hydroxide; quinolines; solvents; toxicity
- ... An unexpected and intriguing reaction to the direct construction of indolo[2,3-b]quinoline ring system of neocryptolepine analogues was discovered through simple heating of 3-acetyl-2-ethoxyindole with isatins in 10% aqueous ethanol media with the presence of KOH as the base. The process is very clean and avoids the use of toxic organic solvent, thereby enhancing the greenness of the transformatio ...