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Synthesis 2005(17): 2881-2886
DOI: 10.1055/s-2005-916033
DOI: 10.1055/s-2005-916033
PAPER
© Georg Thieme Verlag Stuttgart · New York
A Valuable Synthesis of Pyrrolo[1,2-a]quinoxalines, Indolo[1,2-a]quinoxalines and their Aza-Analogues by Palladium-Catalyzed Intramolecular Carbon-Nitrogen Bond Formation
Further Information
Received
15 April 2005
Publication Date:
29 September 2005 (online)
Publication History
Publication Date:
29 September 2005 (online)
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Abstract
A novel and efficient method for the construction of pyrrolo[1,2-a]quinoxalines, indolo[1,2-a]quinoxalines and their aza-analogues is described. The reaction involves a Pd-catalyzed intramolecular cyclization as the key step and provides the desired products in only two steps and good overall yields.
Key words
palladium catalyst - aminations - cyclizations - fused-ring systems - indoles - lactams
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