HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 928402Generated: October 30, 2026
Benzyl Bromide → ethyl 1-benzyl-1H-pyrazole-4-carboxylate
https://huagongshe.com/reaction/928402
Participants
| Role | Name | HCID | Charge |
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| Reactant | Benzyl Bromide | HCID 7498 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | ethyl 1H-pyrazole-4-carboxylate | HCID 142179 | — |
| Solvent | Acetone | HCID 180 | — |
| Product | ethyl 1-benzyl-1H-pyrazole-4-carboxylate | HCID 15237993 | — |
Reaction Steps
Bromomethyl-benzene (610 mg, 3.57 mmol) was suspended in Acetone (25 ml), ethyl 1H-pyrazole-4-carboxylate (500 mg, 3.57 mmol) and K2CO3 (2465 mg, 17.84 mmol) were added. The suspension was stirred 16 h at 50° C. The reaction mixture was filtrated and evaporated in vacuum to give the title compound which was used for the next step without further purification. HPLC/MS (Method A) RtA=1.82 min, MS [M+H]+=230.9.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09290485B2 |
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| Source dataset | uspto-grants-2016_03 |
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| ORD ID | ord-716679d359564f7ba9954bc592dabce4 |
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| Source note | uspto-grants-2016_03 |
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