1: (EtO)2P(O)CF2Br With copper(I) bromide; zinc in N,N-dimethyl-formamide 2: 2-propynyl p-toluenesulfonate With copper(I) bromide in N,N-dimethyl-formamide T=20°C; 12 h;
1: (EtO)2P(O)CF2Br With copper(I) bromide; zinc in N,N-dimethyl-formamide 2: acetic acid,2-propynyl ester With copper(I) bromide in N,N-dimethyl-formamide