反应条件
1: N-methyl-N-formyl-aniline With diphosphoric acid tetrachloride T=0°C; 0.5 h; 2: 1,4-dimethoxy benzene in N,N-dimethyl-formamide T=100°C; Vilsmeier-Haack reaction; 10 h; 3: With ammonia; iodine in tetrahydrofuran; water; N,N-dimethyl-formamide T=20°C; 3 h; regioselective reaction;
参考文献
Tetrahedron, , vol. 68, # 24 p. 4588 - 4595
