Synthesis of 6-Substituted 2-Pyrrolyl and Indolyl Benzoxazoles by Intramolecular O-Arylation in Photostimulated Reactions

The synthesis of a series of 6-substituted 2-pyrrolyl and 2-indolyl benzoxazoles by photostimulated C–O cyclization of anions from 2-pyrrole carboxamides, 2-indole carboxamides, or 3-indole carboxamides has been found to proceed in good to excellent yields (41–100%) in DMSO and liquid ammonia. The p...

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Veröffentlicht in:	Journal of organic chemistry 2012-02, Vol.77 (3), p.1507-1519
Hauptverfasser:	Vaillard, Victoria A, Guastavino, Javier F, Budén, María E, Bardagí, Javier I, Barolo, Silvia M, Rossi, Roberto A
Format:	Artikel
Sprache:	eng
Schlagworte:	Benzoxazoles - chemical synthesis Benzoxazoles - chemistry Chemistry Chemistry Techniques, Synthetic - methods Electron Transport Exact sciences and technology General and physical chemistry Heterocyclic compounds Heterocyclic compounds with n hetero atom and also o and/or s, se, te hetero atoms Heterocyclic compounds with only one n hetero atom and condensed derivatives Indoles - chemistry Noncondensed benzenic compounds Organic chemistry Photochemical Processes Photochemistry Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Preparations and properties Pyrroles - chemistry
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