HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 302Generated: October 23, 2026
2-Chlorothiophene → 1-Boc-4-(2-thienyl)piperazine
https://huagongshe.com/en/reaction/302
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 2-Chlorothiophene | HCID 7299 | — |
| Reactant | tert-Butyl piperazine-1-carboxylate | HCID 143452 | — |
| Reagent | Triethylamine | HCID 8471 | — |
| Catalyst | Triphenylphosphine | HCID 11776 | — |
| Catalyst | Tetrakis(triphenylphosphine)palladium | HCID 11979704 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 1-Boc-4-(2-thienyl)piperazine | HCID 67343900 | 0% |
Reaction Steps
To a mixture of 2-chlorothiophene (0.248 mL, 2.68 mmol), tert-butyl piperazine-1-carboxylate (500 mg, 2.68 mmol), and TEA (1.123 mL, 8.05 mmol) in DMF (4 mL) was added Pd(Ph3P)4 (57.8 mg, .05 mmol). The reaction was allowed to heat at 95 °C for overnight. LCMS and TLC showed the starting material peak as well as the triphenyl phosphene ionized M+1 peak. The tryphenyl phosphene showed up at the same retention time as 2-chlorothiophene. No new peak was observed following the reaction so no purification techniques were run. MS (m+1) = not seen
Provenance & Evidence
| Source dataset | 750 AstraZeneca ELN dataset |
|---|
| ORD ID | ord-37aa4a46f5494844887cf9e7ccaf1b0d |
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| Source note | 750 AstraZeneca ELN dataset |
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