Royal Society of Chemistry, Organic and Biomolecular Chemistry, 32(18), p. 6241-6246, 2020
DOI: 10.1039/d0ob01319f
Full text: Unavailable
We report a Michael addition of indoles to nitroalkene derivatives enabled by hydrogen-bonding interactions between trisulfonamide (TSA) calix[6]arene catalysts and protic solvents.