1: 3-methyl-1H-pyrazole With iodine; iodic acid in tetrachloromethane; water; acetic acid
T=50°C; 1.5 h;
2: dimethyl sulfate With sodium hydroxide; tetra(n-butyl)ammonium hydrogensulfate in dichloromethane; water
T=20°C; Further stages.;
参考文献
Wayne Craig; Eberle, Martin; Irminger, Bruno; Schueckenboehmer, Anegret; Laime, Yvette; Mueller, Patrick
Heterocycles, 2007 , vol. 71, # 9 p. 1967 - 1974