Technical Notes:
1.Chiral Br?nsted acid catalyst for enantioselective ionic2+4cycloadditions.
2.Direct Interconversion of BINOL and H8- BINOL -Based chiral Br?nsted acids Using single -step Red/Oxmanipulations.
References:
1.Tetrahedron, 2013, 69, 5719.
2.Org. Lett., 2015, 17, 3774.
Strem