HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 239153Generated: October 29, 2026
tert-Butyl piperazine-1-carboxylate → HCID 86686508, compound
https://huagongshe.com/reaction/239153
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | tert-Butyl piperazine-1-carboxylate | HCID 143452 | — |
| Reactant | 2,4-Dichloro-6,7-dihydrothieno[3,2-d]pyrimidine | HCID 45789967 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 86686508 | HCID 86686508 | 96.3% |
Reaction Steps
454 mg piperazine-1-carboxylic acid tert-butyl ester in 5 mL ethanol was added to 0.5 g 2,4-dichloro-6,7-dihydro-thieno[3,2-d]pyrimidine in 5 mL dichlormethane. The reaction was stirred 2 h at RT, 3 h at 60° C. and over night at RT. The solvents were removed and water was added to the residue. The precipitate was filtered and dried to give 0.83 g of the desired product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08642774B2 |
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| Source dataset | uspto-grants-2014_02 |
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| ORD ID | ord-0e636662478e4814b2734b10dadf6ea2 |
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| Source note | uspto-grants-2014_02 |
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