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Cooperative Multicatalytic System for the One-Pot Synthesis of Octahydrospiro-β-carbolines. | LitMetric

A domino cyclization of 3-((3-(2-aminophenyl)prop-2-ynylamino)methyl)but-3-en-1-ol with aldehydes has been accomplished employing 5 mol % of the Ph3PAuCl/AgSbF6/In(OTf)3 system to afford the corresponding octahydrospiro[pyran-4,4'-pyrido[3,4-b]indole] derivatives in good yields with high selectivity. This is the first report on the synthesis of spiro-β-carbolines through a multicatalytic cascade process.

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http://dx.doi.org/10.1021/acs.joc.5b01108DOI Listing

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