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| | 2-Chloro-5-hydroxypyrimidine Basic information |
| | 2-Chloro-5-hydroxypyrimidine Chemical Properties |
| Melting point | 195-196 °C | | Boiling point | 328.1±15.0 °C(Predicted) | | density | 1.513±0.06 g/cm3(Predicted) | | storage temp. | under inert gas (nitrogen or Argon) at 2-8°C | | pka | 6.17±0.23(Predicted) | | Appearance | Off-white to light brown Solid | | InChI | InChI=1S/C4H3ClN2O/c5-4-6-1-3(8)2-7-4/h1-2,8H | | InChIKey | BOGPIHXNWPTGNH-UHFFFAOYSA-N | | SMILES | C1(Cl)=NC=C(O)C=N1 | | CAS DataBase Reference | 4983-28-2(CAS DataBase Reference) |
| | 2-Chloro-5-hydroxypyrimidine Usage And Synthesis |
| Uses | 2-Chloro-5-hydroxypyrimidine is an intermediate used to synthesize tandospirone derivatives with anxiolytic activities. | | Hazard | 2-Chloro-5-hydroxypyrimidine is an irritant. Contact may cause skin irritation, severe eye irritation and respiratory tract irritation. | | Synthesis | 2-Chloro-5-methoxypyrimidine (0.46 g, 3.18 mmol) in methylene chloride (10 mL) was treated with 1.0 N boron tribromide (16 mL, 16 mmol) at room temperature. The solution was stirred overnight. After that, the reaction was partitioned between saturated NaHCO3 and DCM. The aqueous layer was extracted with additional DCM. Combined the organic layers and dried (MgSO4), filtered, and concentrated to obtain the crude product. The residue was purified by flash column chromatography on silica gel to give 2-Chloro-5-hydroxypyrimidine.
| | References | [1] Patent: WO2010/80503, 2010, A1. Location in patent: Page/Page column 225
[2] Patent: WO2011/144578, 2011, A1. Location in patent: Page/Page column 27
[3] Patent: WO2011/144577, 2011, A1. Location in patent: Page/Page column 24-25
[4] Patent: WO2016/164703, 2016, A1. Location in patent: Page/Page column 50
[5] Patent: US5589478, 1996, A |
| | 2-Chloro-5-hydroxypyrimidine Preparation Products And Raw materials |
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