| 摘要 |
Provided is a solvent medium for a diazotization reaction, comprising mutually mixed polyethyleneglycol and water; the molecular weight of the polyethyleneglycol is 200-600; the volume ratio of polyethyleneglycol and water is 1:0.4-1.5. The solvent medium has significant phase transfer catalysis, effectively shortens the diazotization reaction time, speeds up the diazotization reaction process, effectively prevents the formation of a diazonium amino compound, and maintains the stability of diazonium salt, thus improving the yield of diazonium salt. The solvent medium is utilized to produce the diazonium salt, and the produced diazonium salt has better quality; in addition, the production process is easy to operate and more environmentally friendly, and the production device has low manufacturing costs and high safety. |
