β-cyclodextrin in water; acetone T=20°C; aza-Michael addition; 8 h;

triethylaluminum; pyridine; bis(acetylacetonate)nickel(II) in tetrahydrofuran; toluene T=80 - 100°C; 5 h;

triethylaluminum; pyridine; bis(acetylacetonate)nickel(II) in tetrahydrofuran; toluene T=80 - 100°C; 5 h;

sulfuric acid in 1,4-dioxane 48 h; Heating;

1: 19 percent / Na2CO3 / ethanol; H2O / 52 h / Heating 2: 1.)tetrakis(triphenylphosphine)nickel(0) 2.)2,3-dichloro-5,6-dicyano-p-benzoquinone / 1.)toluene, 65 deg C, 5 h 2.)toluene, reflux, 3 h View Scheme