HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 356997Generated: October 28, 2026
Phosphoric Acid → HCID 67615143, compound
https://huagongshe.com/reaction/356997
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Phosphoric Acid | HCID 1004 | — |
| Reactant | Phosphorus oxide (P4O10) | HCID 14812 | — |
| Reactant | HCID 54130696 | HCID 54130696 | — |
| Product | HCID 67615143 | HCID 67615143 | 50% |
Reaction Steps
A mixture of 5-hydroxy-3-(quinol-4-ylmethylene)-2-oxindole (2.883 g, 10 mmol) and phosphoric acid 85% (13 g) and phosphorous pentoxide (10 g) was heated for 2 h at 60° C. The usual work-up gave the title compound in about 50% yield.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05840745 |
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| Source dataset | uspto-grants-1998_11 |
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| ORD ID | ord-025fad3f915d4228874720089fd13d9a |
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| Source note | uspto-grants-1998_11 |
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