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CAS No. : | 26272-85-5 | MDL No. : | MFCD08544403 |
Formula : | C3H5IO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | KBEIFKMKVCDETC-UHFFFAOYSA-N |
M.W : | 183.98 | Pubchem ID : | 13356686 |
Synonyms : |
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Signal Word: | Danger | Class: | 3 |
Precautionary Statements: | P242-P261-P264-P271-P280-P304+P340-P305+P351+P338-P312-P363-P370+P378-P403+P233-P501 | UN#: | 1993 |
Hazard Statements: | H225-H315-H319-H335 | Packing Group: | Ⅲ |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
414 mg | With sodium hexamethyldisilazane; In tetrahydrofuran; N,N-dimethyl-formamide; at 45℃; for 76h;Cooling with ice; | <strong>[4522-35-4]3-iodo-1H-pyrazole</strong> (503 mg, 2.6 mmol) was added as a solution in DMF (1 mL) to a 1.0 M THF solution of NaHMDS (2.9 mL, 2.9 mmol) that had been pre-cooled in an ice water bath. Additional portions of DMF (2×1 mL) were used to ensure complete transfer. 3-iodooxetane (0.41 mL, 4.7 mmol) was added in one portion and the reaction mixture was allowed to warm to r.t. After 1 h, the reaction mixture was heated to 45 C. and allowed to stir for an additional 75 h. The mixture was cooled and diluted with EtOAc, and water. The aqueous phase was extracted with EtOAc. The combined organic phase was washed with water and were dried over Na2SO4, filtered and concentrated to afford a crude residue that was purified by silica gel chromatography (0-30% EtOAc in hexanes) to provide 3-iodo-1-(oxetan-3-yl)-1H-pyrazole 7.53 (414 mg). Regiochemistry was confirmed as drawn via NOE studies. |