pyridine in tetrahydrofuran T=5 - 20°C; 1.25 h; Product distribution / selectivity;

1: With triethylamine in N,N-dimethyl-formamide T=20°C; 1 h; 2: With trichlorophosphate in N,N-dimethyl-formamide T=0°C; 2 h; 3: With water in N,N-dimethyl-formamide T=0°C; 0.25 h; Product distribution / selectivity;

1: 2,4-dioxo-1,4-dihydro-2H-benzo[d][1,3]oxazine With ammonia in N,N-dimethyl-formamide T=60°C; 1 h; 2: 3,4-dichloro-isothiazole-5-carbonyl chloride With triethylamine in N,N-dimethyl-formamide T=60°C; 1 h; 3: With thionyl chloride in N,N-dimethyl-formamide T=60°C; 1 h; Product distribution / selectivity;

triethylamine in N,N-dimethyl-formamide T=60°C; 1 h;