HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1402249Generated: October 29, 2026
1,2-Dichloroethane → HCID 86687101, compound
https://huagongshe.com/reaction/1402249
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 1,2-Dichloroethane | HCID 11 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | 5-Fluoro-2-hydrazinylpyridine | HCID 19916786 | — |
| Reactant | HCID 22311931 | HCID 22311931 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 86687101 | HCID 86687101 | 62.2% |
Reaction Steps
To a solution of (5-fluoro-pyridin-2-yl)-hydrazine (200 mg, 1.57 mmol) in DMF (10.0 mL) was added 2-methyl-2-pyrrolidin-1-yl-propionic acid (246 mg, 1.57 mmol), EDC (332 mg, 1.73 mmol) and HOBt.H2O (21.0 mg, 0.16 mmol). The reaction was stirred overnight then partitioned between EtOAc and water. The aqueous layer was then extracted with EtOAc (3×). The combined organic layers were washed with brine, dried (MgSO4), filtered and evaporated in vacuo. The residue was purified by FCC, using 0-10% [2M NH3 in MeOH] in DCM, to give the title compound (260 mg, 62%). 1H NMR (300 MHz, CDCl3): 1.30 (6H, s), 1.76-1.84 (4H, m), 2.64-2.72 (4H, m), 6.46 (1H, br s), 6.62 (1H, dd, J 9.0, 3.6), 7.28 (1H, ddd, J 9.0, 8.0, 2.9), 8.03 (1H, d, J 2.9), 9.06 (1H, br s).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08907094B2 |
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| Source dataset | uspto-grants-2014_12 |
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| ORD ID | ord-f6ddfe217420484fbf6287354d362bde |
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| Source note | uspto-grants-2014_12 |
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