HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 614916Generated: October 30, 2026
Carbamic acid, ethyl ester → HCID 21327523, compound
https://huagongshe.com/reaction/614916
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Carbamic acid, ethyl ester | HCID 5641 | — |
| Reactant | HCID 21327505 | HCID 21327505 | — |
| Catalyst | Zincchloride | HCID 3007855 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | HCID 21327523 | HCID 21327523 | — |
Reaction Steps
A mixture of 3.42 g of 2-(2-thenylamino)-5-nitrobenzhydrol, 6 g of ethyl carbamate and 0.5 g of zinc chloride was heated at 180° C. (bath temperature) for 2 hours. After cooling, the reaction mixture was dissolved in chloroform and the chloroform solution was washed with water and dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure to give 1-(2-thenyl)-4-phenyl-6-nitro-3,4-dihydro-2(1H)-quinazolinone.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04146717 |
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| Source dataset | uspto-grants-1979_03 |
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| ORD ID | ord-0fcccbafcc4643a8912caaf33f40e386 |
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| Source note | uspto-grants-1979_03 |
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