HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1599487Generated: November 1, 2026
2-Butene, 1,4-dibromo- → 2-(4-Bromobut-2-en-1-yl)-1H-isoindole-1,3(2H)-dione
https://huagongshe.com/reaction/1599487
Participants
| Role | Name | HCID | Charge |
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| Reactant | 2-Butene, 1,4-dibromo- | HCID 13180 | — |
| Reactant | Phthalimide potassium salt | HCID 24194345 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 2-(4-Bromobut-2-en-1-yl)-1H-isoindole-1,3(2H)-dione | HCID 53423432 | 38.1% |
Reaction Steps
To a solution of 1,4-dibromo-2-butene (5 g, 23.37 mmol) in 4 mL DMF was added phthalimide potassium salt (433 mg, 2.34 mmol). The reaction mixture was stirred at 40° C. for 16 hours. The reaction was quenched with water and extracted with ethyl acetate. The organic layer was washed with water and saturated sodium chloride solution, dried over magnesium sulfate, filtered and evaporated in vacuo to provide the product (250 mg). 1H NMR (CDCl3) δ3.92 (d, 2H); 4.32 (d, 2H); 5.90 (m, 2H); 7.74 (m, 2H); 7.87 (m, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05741809 |
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| Source dataset | uspto-grants-1998_04 |
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| ORD ID | ord-7a08810c5e564063b2428110c95edc3a |
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| Source note | uspto-grants-1998_04 |
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