HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 629207Generated: October 30, 2026
2,2-Dimethylsuccinic anhydride → HCID 57516716, compound
https://huagongshe.com/reaction/629207
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 2,2-Dimethylsuccinic anhydride | HCID 87067 | — |
| Reactant | 2-Pyridinamine, 5-iodo- | HCID 88579 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 57516716 | HCID 57516716 | 86.6% |
Reaction Steps
5-iodopyridin-2-amine (1 g, 4.55 mmol) was dissolved in DMF (5 ml) and 3,3-dimethyldihydrofuran-2,5-dione (1.28 g, 10.0 mmol, 2.2 equiv.) was added at room temperature. The mixture was stirred for 3 hr at 150° C. The reaction mixture was evaporated to dryness and loaded directly to a silica gel column. The crude material was purified by flash chromatography on silica gel (20 gr, ethyl acetate/heptane gradient, 0:100 to 100:0). The desired 1-(5-iodopyridin-2-yl)-3,3-dimethylpyrrolidine-2,5-dione (1.3 g, 3.94 mmol, 86.6% yield) was obtained as a yellow solid, MS: m/e=331.0 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09315498B2 |
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| Source dataset | uspto-grants-2016_04 |
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| ORD ID | ord-57f0af45d9ea497d8645ffb3973d5ccb |
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| Source note | uspto-grants-2016_04 |
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