HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 43071Generated: October 26, 2026
1-Isopropylpiperazine → 2-(4-Isopropyl-piperazin-1-yl)-5-nitro-pyrimidine
https://huagongshe.com/reaction/43071
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 1-Isopropylpiperazine | HCID 78013 | — |
| Reactant | 2-Chloro-5-nitropyrimidine | HCID 82544 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 2-(4-Isopropyl-piperazin-1-yl)-5-nitro-pyrimidine | HCID 66914667 | 89.1% |
Reaction Steps
1-Isopropyl-piperazine (1.8 mL, 12.7 mmol, 2 equiv) was added to a cold (5° C.) solution of 2-chloro-5-nitropyrimidine (1 g, 6.3 mmol,) in DCM (5 mL). The reaction mixture was stirred for 20 min at 5° C. and then diluted with DCM and H2O. The aqueous layer was separated and extracted with DCM. The organic phase was washed with brine, dried (Na2SO4), filtered and concentrated to provide 1.41 g of the title compound as a beige solid: ESI-MS: 252.2 [M+H]+; tR=1.89 min.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08536175B2 |
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| Source dataset | uspto-grants-2013_09 |
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| ORD ID | ord-9d3642df068f43569df35b2a9c34155a |
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| Source note | uspto-grants-2013_09 |
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