Dehydrative Transformation of Spirooxindoles to Pyrido[2,3-b]indoles via POCl(3)

[Image: see text] A two-step one-pot efficient synthesis of pyrido[2,3-b]indoles via reaction between isatin, α-amino acid, and dipolarophile has been developed. The initial 1,3-dipolar cycloaddition between the reactants that is performed in the presence of either CuI or methanol results in spiroox...

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Detalles Bibliográficos
Autores principales: Kolle, Shivalinga, Barak, Dinesh S., Ghosh, Aritra, Jaiswal, Vandana, Kant, Ruchir, Batra, Sanjay
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648575/
https://www.ncbi.nlm.nih.gov/pubmed/31459716
http://dx.doi.org/10.1021/acsomega.9b00396
Descripción
Sumario:[Image: see text] A two-step one-pot efficient synthesis of pyrido[2,3-b]indoles via reaction between isatin, α-amino acid, and dipolarophile has been developed. The initial 1,3-dipolar cycloaddition between the reactants that is performed in the presence of either CuI or methanol results in spirooxindoles that undergo POCl(3)-mediated intramolecular dehydrative transformation to afford the title compounds.

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