HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 923470Generated: November 2, 2026
Ammonium Chloride → HCID 118308753, compound
https://huagongshe.com/reaction/923470
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | 2,2-Dimethyl-1,3-dioxan-5-one | HCID 2733141 | — |
| Reactant | 2-Bromo-4-methylpyridine | HCID 2734087 | — |
| Reactant | HCID 178418244 | HCID 178418244 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 118308753 | HCID 118308753 | 40.8% |
Reaction Steps
To a solution of 2.01 g of 2-bromo-4-methylpyridine in 10 ml of THF were added 4.3 ml of a 2.69 M n-butyllithium/hexane solution at −78° C., followed by stirring for 30 minutes. To the reaction mixture was added dropwise a solution of 1 g of 2,2-dimethyl-1,3-dioxan-5-one in 5 ml of THF, followed by stirring at −78° C. for 2 hours. To the reaction mixture was added a saturated aqueous ammonium chloride solution, followed by extraction with ethyl acetate. The organic layer was washed with water and a saturated aqueous sodium chloride solution, and dried over anhydrous magnesium sulfate, and the solvent was then evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography to obtain 700 mg of 2,2-dimethyl-5-(4-methylpyridin-2-yl)-1,3-dioxan-5-ol.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09278968B2 |
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| Source dataset | uspto-grants-2016_03 |
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| ORD ID | ord-ef174b9763d147aa98b6b88e275a5e78 |
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| Source note | uspto-grants-2016_03 |
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