Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Phosgene | HCID 6371 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | Methyl 3-amino-5-phenylthiophene-2-carboxylate | HCID 700562 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 22496346 | HCID 22496346 | 66.7% |
Reaction Steps
Methyl-3-amino-5-phenylthiophene-2-carboxylate (0.25 g, 1.07 mmol) in water (6 mL) was reacted with potassium hydroxide (0.12 g, 2.14 mmol) at 90° C. for 24 hours. The reaction was cooled to 0° C. and phosgene (1.9M in toluene, 0.70 mL, 1.40 mmol) was added dropwise. After stirring at room temperature for 1 hour, the resulting solid was collected by filtration, washed with excess water and dried to give the title compound as a tan solid (0.175 g, 65%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07902203B2 |
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| Source dataset | uspto-grants-2011_03 |
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| ORD ID | ord-35f0f8ff129d473cafb4fe9af321f690 |
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| Source note | uspto-grants-2011_03 |
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