sodium acetate; silver trifluoromethanesulfonate; N,N,N',N'-tetramethyl-urea 1.) CH2Cl2, 1 h, -20 deg C; room temp., overnight; 2.) reflux, 20 min; Yield given. Multistep reaction;

sodium acetate; silver trifluoromethanesulfonate; N,N,N',N'-tetramethyl-urea 1.) CH2Cl2, 1 h, -20 deg C; room temp., overnight; 2.) reflux, 20 min; Yield given. Multistep reaction;

sodium acetate; silver trifluoromethanesulfonate; N,N,N',N'-tetramethyl-urea 1.) CH2Cl2, 1 h, -20 deg C; room temp., overnight; 2.) reflux, 20 min; Yield given. Multistep reaction;