HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1264966Generated: November 2, 2026
Lawesson's reagent → HCID 18613823, compound
https://huagongshe.com/reaction/1264966
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Lawesson's reagent | HCID 87949 | — |
| Reactant | HCID 18613818 | HCID 18613818 | — |
| Solvent | O-Xylene | HCID 7237 | — |
| Product | HCID 18613823 | HCID 18613823 | 43% |
Reaction Steps
A mixture of ethyl 4-[2-(4-trifluoromethylbenzoylamino)-1-oxoethyl]benzoate (900 mg), Lawesson's reagent (960 mg) and xylene (5 ml) was stirred at 140 t 145° C. for 2 hours. The reaction mixture was cooled, and precipitated crystals of ethyl 4-[2-(4-trifluoromethylphenyl)-5-thiazolyl]benzoate (378 mg, yield: 43%) were collected by filtration. The product was recrystallized from xylene-isopropyl ether to obtain pale yellow prisms. Melting point: 174 to 176° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06545009B1 |
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| Source dataset | uspto-grants-2003_04 |
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| ORD ID | ord-6d3029c8b01c4b609e18abfea3d9a728 |
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| Source note | uspto-grants-2003_04 |
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