Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hexane | HCID 8058 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | N-bromobutanimide | HCID 67184 | — |
| Reactant | 2,5-Dimethyl-4-nitrophenol | HCID 282110 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 19841466 | HCID 19841466 | 73% |
Reaction Steps
Into a magnetically stirred suspension of 2,5-dimethyl-4-nitrophenol (12.70 grams, 75.98 mmol) in CH2Cl2 (150 milliliters) at room temperature was added portionwise N-bromosuccinimide (14.88 grams, 83.58 mmol). The mixture rapidly became homogeneous and after one hour thin layer chromatography (3:1 hexane:ethyl acetate) indicated complete consumption of the starting material and formation of a single major product. Saturated Na2SO3 solution (15 milliliters) was added and the solvent was removed under reduced pressure. Ethyl acetate was then added and the organic layer was washed with water and brine, dried over Na2SO4 and concentrated under reduced pressure to afford 2-bromo-3,6-dimethyl-4-nitrophenol (13.6 grams, 55.3 mmol, 73%) as a rust colored solid. H'-NMR (CDCl3) 9.26 (brS, 1H), 7.71 (S, 1H), 2.60 (S, 3H), 2.31 (S, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04880838 |
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| Source dataset | uspto-grants-1989_11 |
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| ORD ID | ord-77f6222ffad14e63bff410de596caff8 |
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| Source note | uspto-grants-1989_11 |
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