Formaldehyde → HCID 69677328, compound

Participants

Reaction Conditions

Reaction Steps

A reactor is charged with 376.4 g phenol (4 moles) and 95.5 g 50% formalin (1.6 moles). This reaction mixture is heated to 60° C. whereupon 96.8 g N-ethylaniline (0.8 moles) is added at 60° C. over 40 minutes. The reaction mixture is then heated at 80° C. for 1 hour and then 1 hour at 100° C. to substantially completely react the phenol. The reaction mixture is cooled to 70° C. Then 96.8 g of N-ethylaniline (0.8 moles) is added followed by addition of 95.5 g of 50% formalin (1.6 moles) at 70° C. over 45 minutes. This reaction mixture is then heated at 80° C. for 2 hours and at 100° C. for 1 hour. Atmospheric distillate, phenol and product are removed as described in Example 23 above. In a similar manner 85.6 g of N-methylaniline (0.8 moles) may be substituted for the 96.8 g of N-ethylaniline (0.8 moles) in the first reaction stage (i.e. Reverse Method) to give a N-ethylaniline-N-methylaniline-phenol-formaldehyde condensate.

Provenance & Evidence