Benzoic Acid → HCID 21285052, compound

Participants

Reaction Conditions

Reaction Steps

The process for Example 6 was initiated by charging 593.5 g phenol (6.31 moles), 1.2 g of benzoic acid (0.2% of phenol) and 75.2 g melamine (0.60 moles) into a reaction vessel to form a reaction mixture. The reaction mixture was heated to 80° C. and 64.1 g of 50.3% aqueous formaldehyde (60% of total charge) was added over 26 minutes. The reaction mixture was atmospherically distilled to 123° C., maintained at 123° C. for 2 hours, and then reduced to 80° C. 42.5 g of 50.3% aqueous formaldehyde (40% of total charge) was added over about 17 minutes to the reaction mixture, and then atmospherically distilled to 123° C., and then maintaining the temperature at 123° C. for 1.4 hours followed by increasing the temperature over 50 minutes to 165° C. and continuing to distill atmospherically. Next, the reaction mixture was under a gradually increasing vacuum over 2 hours to full vacuum of at least 27 inches while maintaining a temperature of 163°-165° C., followed by heating the reaction mixture to 175° C. under full vacuum. Further, the process is concluded by removing the vacuum distillate (413.7 g) and discharging the product (261.2 g) from the reaction vessel.

Provenance & Evidence