Palladium-catalysed decarboxylative nitrile insertion via C-H activation or self-coupling of indole-2-carboxylic acids: a new route to indolocarbolines and triindoles
Palladium-catalysed decarboxylative nitrile insertion via C-H activation or self-coupling of indole-2-carboxylic acids: a new route to indolocarbolines and triindoles
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Date
2015-08-04
Authors
Prasad Tulichala, R. N.
Kumara Swamy, K. C.
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Abstract
Palladium catalysed-reaction of indole carboxylic acids with nitriles in the presence of Ag2CO3 proceeds via decarboxylative dual C-H activation leading to the nitrile insertion products, triazaindeno-fluorenes (indolocarbolines); in the absence of nitrile, diindolocarbazoles (heptacyclic triindoles or triazatruxenes) are formed.
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Chemical Communications. v.51(60)