HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1875488Generated: October 30, 2026
Phosphorus oxychloride → 4-Chloro-6-nitroquinazoline
https://huagongshe.com/reaction/1875488
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Phosphorus oxychloride | HCID 24813 | — |
| Reactant | 6-Nitro-3,4-dihydroquinazolin-4-one | HCID 135398502 | — |
| Product | 4-Chloro-6-nitroquinazoline | HCID 11356257 | 78% |
Reaction Steps
In a 100 mL flask equipped with a reflux condenser, 6-nitro-quinazolin-4-one 2.85 g (15 mmol), phosphoryl chloride 25 mL were added. The mixture was stirred at 105° C. for 3 h, and then was dropped into 150 mL of ice water carefully, the squama solid deposited was filtered out, dried, and identified as the title compound. Yield: 78%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08309563B2 |
|---|
| Source dataset | uspto-grants-2012_11 |
|---|
| ORD ID | ord-76d72632e053407da66c5090d92bd7cf |
|---|
| Source note | uspto-grants-2012_11 |
|---|