HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1396135Generated: November 2, 2026
Ethanol → 4-ethoxy-7H-pyrrolo[2,3-d]pyrimidine
https://huagongshe.com/reaction/1396135
Participants
| Role | Name | HCID | Charge |
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| Reactant | Ethanol | HCID 702 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | 7H-Pyrrolo(2,3-d)pyrimidine, 4-chloro- | HCID 5356682 | — |
| Product | 4-ethoxy-7H-pyrrolo[2,3-d]pyrimidine | HCID 57963245 | 66.9% |
Reaction Steps
4-Chloro-7H-pyrrolo[2,3-d]pyrimidine (9, 300 mg, 1.95 mmol) is combined with 3.00 mL of ethanol (10, 51.4 mmol), then potassium hydroxide (0.226 g, 4.03 mmol) is added. The reaction is heated at 120° C. for 3 hours in a microwave, then extracted with ethyl acetate and aqueous saturated ammonium chloride. The organic layer is washed with brine, dried with magnesium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material is recrystallized from methanol to provide the desired compound (11, 213 mg). MS (ESI) [M+H+]+=164.9.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08901118B2 |
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| Source dataset | uspto-grants-2014_12 |
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| ORD ID | ord-9f8945ba44a84ca1b5f3875d6fc709e1 |
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| Source note | uspto-grants-2014_12 |
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