HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 43571Generated: October 28, 2026
Dichloromethane → HCID 67549050, compound
https://huagongshe.com/reaction/43571
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dichloromethane | HCID 6344 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | N-bromobutanimide | HCID 67184 | — |
| Reactant | HCID 10857878 | HCID 10857878 | — |
| Solvent | Benzene | HCID 241 | — |
| Product | HCID 67549050 | HCID 67549050 | 67% |
Reaction Steps
α,α-Bisisobutyronitrile (66 mg, 0.4 mmol) was added to a solution of methyl 2-(4-nitrophenyl)-4,5-dihydro-1,3-oxazole-4-carboxylate (described in Kline, Toni; Andersen, Niels H.; Harwood, Eric A.; Bowman, Jason; Malanda, Andre; Endsley, Stephanie; Erwin, Alice L.; Doyle, Michael; Fong, Susan; Harris, Alex L.; Mendelsohn, Brian; et al., J. Med. Chem., 45, 14, 2002, 3112-3129, 1.95 g, 7.8 mmol) in benzene (30 mL). The mixture was heated to 80° C. and N-bromosuccinimide (1.53 g, 8.58 mmol) was added. The mixture was stirred at the same temperature for 1.5 hours and then ethyl acetate and dichloromethane were added, followed by sequentially washing with water and brine. This was dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (elution solvent: chloroform/methanol=100/0, 20/1, 10/1) to obtain 1.29 g of the title compound as a colorless solid (67%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08536197B2 |
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| Source dataset | uspto-grants-2013_09 |
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| ORD ID | ord-980fb99caa0242cb8a9f2d422ce3347c |
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| Source note | uspto-grants-2013_09 |
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