Formaldehyde → HCID 86744919, compound

Participants

Reaction Steps

To a mixture of 30.6 parts of 5-dodecylsalicylic acid, 21.2 parts of p-xylene, 3.8 parts of 87% paraformaldehyde and 30 parts of acetic acid was added 2.0 parts of 95% sulfuric acid (catalyst). After being heated under reflux for 6 hours, the reaction mixture was washed with water, and unreacted p-xylene and water were removed by vacuum distillation to give 43 parts of 5-dodecylsalicylic acid-p-xylene-formaldehyde co-condensation product. 10 parts of the co-condensation product was added to 32 parts of aqueous 10% potassium hydroxide solution and dissolved at 80° C. The solution was cooled to 40° C., and 28 parts of aqueous 10% solution of nickel chloride hexahydrate was added thereto. After the reaction had been allowed to proceed at 40° C. for 30 minutes, precipitates formed were collected by filtration, washed with water and dried to give 11 parts of nickel salt of 5-dodecylsalicylic acid-p-xylene-formaldehyde co-condensation product.

Provenance & Evidence