in N,N-dimethyl-formamide T=90°C; 12 h;

SO2(1-) in hydrogenchloride Kinetics; byproducts: SO2; SO2(1-) radical generated by reaction with CO2(1-) or with the 2-hydroxy-2-propyl radical (these radicals were generated by radiolysis of isopropanol or CO2 containing acidic solns.), reaction in presence and absence of excess SO2; detn. by UV absorption;

1: propionic acid / 1 h / |Reflux 2: N,N-dimethyl-formamide / 6 h / |Reflux; |Inert atmosphere 3: N,N-dimethyl-formamide / 12 h / 90 °C View Scheme