1: 5.7 percent / disodium edetate, 1,1,1-trifluoroacetone, NaHCO3, Oxone / acetonitrile; H2O / 48 h 2: 0.07 h / 162 °C View Scheme

toluene-4-sulfonic acid; 2,3-dicyano-5,6-dichloro-p-benzoquinone in benzene 48 h; Heating;

1: 5.7 percent / disodium edetate, 1,1,1-trifluoroacetone, NaHCO3, Oxone / acetonitrile; H2O / 48 h 2: 0.07 h / 162 °C 3: 77 percent / LiAlH4 / tetrahydrofuran / 0.5 h View Scheme