HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 749203Generated: October 30, 2026
Ammonium Chloride → HCID 21928206, compound
https://huagongshe.com/reaction/749203
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | Lithium diisopropylamide | HCID 2724682 | — |
| Reactant | HCID 10241934 | HCID 10241934 | — |
| Reactant | HCID 12993427 | HCID 12993427 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 21928206 | HCID 21928206 | 70% |
Reaction Steps
6-Acetamido-3-methyl-1,2-benzisoxazole (571 mg, 3.00 mmol) was dissolved in dry THF (18 mL). 2M of LDA (3.1 mL, 6.2 mmol) was dropwise added to the solution for 10 minutes under nitrogen atmosphere at −78° C. A solution of 4-iodomethyl-5-isopropyl-2-(2,4-dichlorophenyl)oxazole (1.19 g, 3.00 mmol) in THF (3.0 mL) was dropwise added to the resulting mixture for 7 minutes. The mixture was stirred for 1 hour under the same conditions. The mixture was allowed to room temperature. A saturated aqueous ammonium chloride solution and ethyl acetate were added to the mixture. The organic layer was washed with water and saline, and dried over anhydrous sodium sulfate. Ethyl acetate was removed under reduced pressure. The residue was purified by column chromatography on silica gel with chloroform/methanol (80/1) to give the desired compound (904 mg) as pale yellow oil (yield 70%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07402597B2 |
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| Source dataset | uspto-grants-2008_07 |
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| ORD ID | ord-71b09e1ff7d544fcaf40f6b78bc530c5 |
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| Source note | uspto-grants-2008_07 |
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