反应详情

3-Propionylaminoaniline (16.4 parts) was reacted with n-heptyl p-toluenesulfonate (27 parts) at 100° C. for 4 hours in methyl cellosolve (200 parts) in the presence of anhydrous sodium carbonate (5.3 parts) to obtain 3-propionylamino-N-heptylaniline. Thereafter, reaction was further continued at 100° to 110° C. for 4 hours with addition of n-amyl p-toluenesulfonate (24.2 parts) and anhydrous sodium carbonate (5.3 parts) to obtain 3-propionylamino-N-n-heptyl-N-n-pentylaniline (coupling component). In the same manner as in Example 1, 2-cyano-4-nitro-6-chloroaniline was diazotized and coupled with the above coupling component to obtain 45.9 parts of a dye (7).