Preparation and application of 4-nitrosoresorcinol monomethyl ether_Kain Industrial Additive

background and overview[1] 4-nitrosoresorcin monomethyl ether is an organic intermediate that can be prepared from 3-methoxyphenol in one step. preparation[1] 3-methoxyphenol (4.96g, 0.04mol) was dissolved in 50ml propionic acid, cooled to -10°c, 0.5 ml propionic anhydride was added dropwise, and sodium nitrite (2.90g, 0.042mol) was added in 4 batches. , a brown solid precipitated, reacted…