HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1428936Generated: October 31, 2026
Triethylamine → Tert-butyl 4-(6-methoxypyrimidin-4-yl)piperazine-1-carboxylate
https://huagongshe.com/reaction/1428936
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | tert-Butyl piperazine-1-carboxylate | HCID 143452 | — |
| Reactant | 4-Chloro-6-methoxypyrimidine | HCID 1051509 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | Tert-butyl 4-(6-methoxypyrimidin-4-yl)piperazine-1-carboxylate | HCID 66569709 | 58% |
Reaction Steps
10.8 g piperazine-1-carboxylic acid tert-butyl ester was added to 8.3 g 4-chloro-6-methoxy-pyrimidine and 16 mL triethylamine in 40 mL DMF. The reaction was stirred over night at 60° C. The mixture was diluted with water and extracted with ethyl acetate. The organic layer was dried with magnesium sulfate and evaporated. The residue was purified chromatography on silica gel (petrolether/ethyl acetate: 8/2) to yield 9.8 g of the desired compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08937176B2 |
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| Source dataset | uspto-grants-2015_01 |
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| ORD ID | ord-56fec579ac164c639bb319f0dbf82384 |
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| Source note | uspto-grants-2015_01 |
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