HuagongsheHuagongshe Chemistry Print Report · For research reference only
Tetrabromophthalic anhydride → Phthalic Acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Tetrabromophthalic anhydride | HCID 12443 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Catalyst | Zinc | HCID 23994 | — |
| Product | Phthalic Acid | HCID 1017 | 97% |
Reaction Steps
Example 1 was repeated using tetrabromophthalic anhydride with 72 wt % zinc and 20% aqueous NaOH. After one hour at 60° C., 97% phthalic acid was produced. This example shows that the process of this invention is ineffective in selectively removing bromine.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04981999 |
| Source dataset | uspto-grants-1991_01 |
| ORD ID | ord-7cfad352a2114480b3bf7d60878fc99b |
| Source note | uspto-grants-1991_01 |