Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | Benzylurea | HCID 10853 | — |
| Reactant | 2-(Trifluoromethyl)acrylic acid | HCID 587694 | — |
| Product | HCID 13313792 | HCID 13313792 | 73.5% |
Reaction Steps
A mixture of α-trifluoromethylacrylic acid (350 mg; 2.5 mmoles), benzylurea (389 mg; 2.6 mmoles) and acetic anhydride (2 ml) was heated with stirring at 100° C. for 1 hour. The solvent was evaporated under reduced pressure, and the residue was recrystallized from chloroform/hexane to give 500 mg (yield: 72%) of 3-benzyl-5-trifluoromethyldihydrouracil. The physical and spectral properties of this product completely agreed with those of the product obtained in Example 6.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04581452 |
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| Source dataset | uspto-grants-1986_04 |
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| ORD ID | ord-e80599714adc460da8eaf88111514870 |
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| Source note | uspto-grants-1986_04 |
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