869668-71-3Relevant academic research and scientific papers
Sequential palladium-catalysed C- and N-arylation reactions as a practical and general protocol for the synthesis of the first series of oxcarbazepine analogues
Carril, Mónica,SanMartin, Raul,Domínguez, Esther,Tellitu, Imanol
, p. 690 - 702 (2007/10/03)
The first series of oxcarbazepine analogues, starting from readily-available materials and through a high-yielding five-step sequence based on palladium catalysis, is reported. The so-obtained compounds incorporate not only a variety of substituents in both of?the aryl rings comprising the framework of an oxcarbazepine, but also involve the more challenging palladium-catalysed coupling of a number of heteroaromatic substrates. The addition of small amounts of water in some of the metal-catalysed processes showed a beneficial effect, highly increasing the selectivity of such reactions.
An advantageous route to oxcarbazepine (Trileptal) based on palladium-catalyzed arylations free of transmetallating agents
Carril, Monica,SanMartin, Raul,Churruca, Fatima,Tellitu, Imanol,Dominguez, Esther
, p. 4787 - 4789 (2007/10/03)
(Chemical Equation Presented) A new route to oxcarbazepine (Trileptal), the most widely prescribed antiepileptic drug, starting from commercially available 2′-aminoacetophenone and 1,2-dibromobenzene, is reported. The sequentially accomplished key steps are palladium-catalyzed intermolecular α-arylation of ketone enolates and intramolecular N-arylation reactions. After several experiments to establish the best conditions for both arylation processes, the target oxcarbazepine is obtained in a satisfactory overall yield, minimizing the number of steps and employing scalable catalytic procedures developed in partially aqueous media.
