Formaldehyde → HCID 86738659, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 17.2 g (0.100 mole) 1-naphthoic acid and 8.1 g (0.100 mole) 37% formaldehyde in 85 ml. glacial acetic acid was stirred and maintained at a temperature of 90°-110° C. during addition of 5.6 ml. (0.100 mole) 96% sulfuric acid over 10 minutes. The solution was maintained at 110° C. for another 24 hours, during which time the solution became progressively darker in color and some solids appeared. On cooling to 50° C., heavy precipitation of white solids occurred. Addition of 150 ml. water produced a heavier deposition of solids which was filtered, washed with water, and dried. The solids were slurried in boiling toluene, filtered hot, and dried to afford 11.1 g of the 1-naphthoic acid/formaldehyde polymer showing a softening point of about 220° C.

Provenance & Evidence