Formaldehyde → HCID 86744920, compound

Participants

Reaction Steps

To a mixture of 22.8 parts of 5-benzylsalicylic acid, 21.2 parts of ethylbenzene, 3.8 parts of 87% paraformaldehyde and 25 parts of acetic acid was added 1.0 part of 95% sulfuric acid (catalyst). After being heated under reflux for 4 hours, the reaction mixture was washed with water, and unreacted ethylbenzene and water were removed by vacuum distillation to give 33 parts of 5-benzylsalicylic acid-ethylbenzene-formaldehyde co-condensation product. 10 parts of the co-condensation product was converted into its zinc salt in a similar manner as in Synthesis Example 1. There was obtained 11 parts of zinc salt of 5-benzylsalicylic acid-ethylbenzene-formaldehyde co-condensation product.

Provenance & Evidence