HuagongsheHuagongshe Chemistry Print Report · For research reference only
Formaldehyde → HCID 86744921, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | O-Xylene | HCID 7237 | — |
| Reactant | 2-Hydroxy-5-(1-phenylethyl)benzoic acid | HCID 11402235 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | HCID 86744921 | HCID 86744921 | — |
Reaction Steps
To a mixture of 24.2 parts of 5-α-methylbenzylsalicylic acid, 21.2 parts of o-xylene, 8.9 parts of 37% formalin and 25 parts of acetic acid was added 4.0 parts of 95% sulfuric acid (catalyst). After being heated under reflux for 5 hours, the reaction mixture was washed with water, and unreacted o-xylene and water were removed by vacuum distillation to give 35 parts of 5-α-methylbenzylsalicylic acid-o-xylene-formaldehyde co-condensation product. 10 parts of the co-condensation product was converted into its tin salt in a similar manner as in Synthesis Example 3. There was obtained 13 parts of tin salt of 5-α-methylbenzylsalicylic acid-o-xylene-formaldehyde co-condensation product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05034370 |
| Source dataset | uspto-grants-1991_07 |
| ORD ID | ord-9476c44d75fc44e0b797b63c7343b6ee |
| Source note | uspto-grants-1991_07 |