HuagongsheHuagongshe Chemistry Print Report · For research reference only
Chlorine → 1,3-Isobenzofurandione, 5-fluoro-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Chlorine | HCID 24526 | — |
| Reactant | 5,5-Difluorohexahydro-2-benzofuran-1,3-dione | HCID 14008249 | — |
| Product | 1,3-Isobenzofurandione, 5-fluoro- | HCID 67572 | 80% |
Reaction Steps
The procedure of Example III was repeated except that the feed was 4,4-difluorohexahydrophthalic anhydride, the vapor temperature was 240° C., reaction temperature was 255° C., the organic rate was 0.5 grams/minute, and the chlorine rate was 183 ml/min. The product, 4-fluorophthalic anhydride, was produced in 80% yield and 90% purity.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05003088 |
| Source dataset | uspto-grants-1991_03 |
| ORD ID | ord-032b60dd621946d4a93f66b106cb3332 |
| Source note | uspto-grants-1991_03 |