HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 556882Generated: October 25, 2026
4,6-Dichloropyrimidine → 5-(6-Chloropyrimidin-4-ylamino)-3-methoxypyrazine-2-carbonitrile
https://huagongshe.com/reaction/556882
Participants
| Role | Name | HCID | Charge |
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| Reactant | 4,6-Dichloropyrimidine | HCID 70943 | — |
| Reactant | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| Reactant | 2-(Di-tert-butylphosphino)biphenyl | HCID 2734215 | — |
| Reactant | 5-Amino-3-methoxypyrazine-2-carbonitrile | HCID 59613384 | — |
| Catalyst | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 5-(6-Chloropyrimidin-4-ylamino)-3-methoxypyrazine-2-carbonitrile | HCID 59613517 | 28.1% |
Reaction Steps
5-Amino-3-methoxypyrazine-2-carbonitrile (9.2 mg, 0.061 mmol), 4,6-dichioropyrimidine (10 mg, 0.067 mmol), lithium bis(trimethylsilyl)amide (1M, 75 uL, 0.075 mmol), Pd2(dba)3 (3.5 mg, 5.5% mol) and 2-(di-tert-butyl-phosphino)biphenyl (2 mg, 0.0067 mmol) were mixed in THF (0.5 mL). The reaction mixture was heated at 135° C. for 60 minutes using microwave irradiation. The crude product was purified by preparative thin layer chromatography, eluting with EtOAc/n-hexane (1/2), to give the title compound as an oil (4.5 mg, 28%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08058045B2 |
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| Source dataset | uspto-grants-2011_11 |
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| ORD ID | ord-0b79adca44f747178bd0d71a28cf9618 |
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| Source note | uspto-grants-2011_11 |
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