potassium carbonate; Tedicyp; bis(η3-allyl-μ-chloropalladium(II)) in N,N-dimethyl-formamide T=130°C; Heck reaction; 20 h;

calcium sulfate; Rexyn 101 (H) cation-exchange resin in dichloromethane 24 h; Ambient temperature;

1: 50 percent / Pb(OAc)4, TFA / CH2Cl2 / 3 h / Ambient temperature 2: 60 percent / Rexyn 101 (H) cation-exchange resin, CaSO4 / CH2Cl2 / 24 h / Ambient temperature View Scheme

1: 55 percent / triethanolamine, H2O / 12 h / Heating 2: 50 percent / Pb(OAc)4, TFA / CH2Cl2 / 3 h / Ambient temperature 3: 60 percent / Rexyn 101 (H) cation-exchange resin, CaSO4 / CH2Cl2 / 24 h / Ambient temperature View Scheme