Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 2-hydroxy-5-(4-methylphenyl)benzoic Acid | HCID 4613756 | — |
| Product | HCID 86612802 | HCID 86612802 | — |
Reaction Steps
The same procedure as 5a is used with 11.42 g dry 4-hydroxy-4′-methylbiphenyl-3-carboxylic acid (50 mmole, fw=228.25) and 80.1 g 30% fuming sulfuric acid (300 mmole, fw=80.06) which are stirred at 30° C. for 24 hour and then heated with stirring at 70° C. for another 24 hours. Crystallization was effected using 22.2 g distilled water and 145 mL propionitrile. Yield was 21.2 g (84%) of the trisulfonated product as white crystals of the dihydrate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08496835B2 |
|---|
| Source dataset | uspto-grants-2013_07 |
|---|
| ORD ID | ord-615a7aeaf65943be82fe8751f4e77cb7 |
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| Source note | uspto-grants-2013_07 |
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