HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2251192Generated: October 25, 2026
Potassium Hydroxide → 1,1-Dimethylethyl 4-[4-(5-methyl-1,2,4-oxadiazol-3-yl)phenyl]-1-piperazinecarboxylate
https://huagongshe.com/reaction/2251192
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | tert-Butyl piperazine-1-carboxylate | HCID 143452 | — |
| Reactant | 3-(4-Bromophenyl)-5-methyl-1,2,4-oxadiazole | HCID 823560 | — |
| Catalyst | Hexadecyltrimethylammonium Bromide | HCID 5974 | — |
| Catalyst | HCID 178418851 | HCID 178418851 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | 1,1-Dimethylethyl 4-[4-(5-methyl-1,2,4-oxadiazol-3-yl)phenyl]-1-piperazinecarboxylate | HCID 69037720 | — |
Reaction Steps
A well stirred mixture of 0.015 mmol of bis(tri-t-butylphosphine)palladium, 0.01 mmol of cetyltrimethylammonium bromide, 2 mmol of powdered potassium hydroxide, 2 mmol of 3-(4-bromo-phenyl)-5-methyl-[1,2,4]oxadiazole and 2.1 mmol of N-BOC-piperazine in 1 ml of toluene was heated under Ar to 90° C. for 17 hours. The resulting reaction mixture was diluted with water, extracted with ethyl acetate and the product purified by column chromatography (SiO2; cyclohexane/ethyl acetate 7:3) to yield the title compound as a yellowish solid. MS (m/e): 345.3 (MH+, 100%)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07319099B2 |
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| Source dataset | uspto-grants-2008_01 |
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| ORD ID | ord-a60e94d179cc4581bd796294afbec794 |
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| Source note | uspto-grants-2008_01 |
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