Preparation and application of 4-chlorobenzaldehyde_Kain Industrial Additive

Background and Overview[1-3] 4-Chlorobenzaldehyde is mainly used in the manufacture of pharmaceutical raw materials and intermediates such as sedatives fenal, anaminobutyric acid, etc. It is also used in pesticides to manufacture chlorocinnamic aldehyde, weed-killing powder, etc. Preparation[1] The synthesis method of fenalol drug intermediate 4-chlorobenzaldehyde includes the following steps: Add 2.5 mol of 2-methyl-3-bromo-5-chlorophenol and…