HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 568686Generated: October 29, 2026
Pyridinium chloride → 2,3-Dichloro-2',4-dihydroxybenzophenone
https://huagongshe.com/reaction/568686
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Pyridinium chloride | HCID 10176127 | — |
| Reactant | 2,3-Dichloro-2',4-dimethoxybenzophenone | HCID 14012570 | — |
| Product | 2,3-Dichloro-2',4-dihydroxybenzophenone | HCID 12854064 | — |
Reaction Steps
A solid mixture of 13 g of 2,3-dichloro-2',4-dimethoxybenzophenone and 52 g of pyridine HCl is heated at 200° C. for one hour. The hot mixture is then poured into vigorously stirred ice water. The product is extracted with ethyl acetate. The extract is dried over Na2SO4 and evaporated to give 2,3-dichloro-2',4-dihydroxybenzophenone, mp 197°-201° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04728662 |
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| Source dataset | uspto-grants-1988_03 |
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| ORD ID | ord-0a008d6ddfa34149aa5307a49fcc12fb |
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| Source note | uspto-grants-1988_03 |
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