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CAS No. : | 113975-22-7 | MDL No. : | MFCD03095287 |
Formula : | C5H3FIN | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | WCDCAXVNBOLWNO-UHFFFAOYSA-N |
M.W : | 222.99 | Pubchem ID : | 7009501 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H315-H319-H335 | Packing Group: | |
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 |
---|---|---|
708 mg (62%) | With n-butyllithium; sodium borohydrid; diisopropylamine; In tetrahydrofuran; ethyl acetate; | EXAMPLE 1 2-Fluoro-4-iodo-3-(hydroxymethyl)pyridine To a solution of LDA, freshly prepared from diisopropylamine (0.63 mL, 4.49 mmol) and n-BuLi (4.49 mmol) in THF (10 mL) at -78 C., is cannulated a solution of 2-fluoro-3-iodopyridine (1 g, 4.48 mmol) in 2 mL of THF, and the mixture is stirred for 1 hour at -78 C. under nitrogen. Ethyl formate (1.1 mL, 13.6 mmol) is added to the reaction mixture at -78 C. and stirring is continued for 30 min. The reaction is quenched with saturated sodium bicarbonate solution at -78 C. and allowed to warm to room temperature. Sodium borohydride (0.34 g, 8.99 mmol) is slowly added to the reaction mixture and then stirred for 30 min. The mixture is extracted with ethyl acetate. The combined ethyl acetate extracts are washed with brine, dried (MgSO4) and concentrated in vacuo. The residue is purified by radial plc (silica gel, hexanes, 10% EtOAc/hexanes, 20% EtOAc/hexanes) to afford 708 mg (62 %) of the product as a white solid having a mp of 69-70 C. Elemental Analysis for C6 H5 FINO: theory: C 28.48, H 1.99, N 5.54; found: C 28.55, H 1.94, N 5.48. IR (KBr): cm1 3336, 1584, 1541, 1446, 1401, 1264, 1218, 1003, 870, 833,803,761,577. 1 H NMR (CDCl3): delta7.79-7.82 (d, 1H,J=5 Hz), 7.66-7.68 (d, 1H, J=5 Hz), 4.82-4.86 (d, 2H, J=7 Hz), 1.99-2.04 (t, 1H, J=14 Hz). 13 C NMR (CDCl3): delta 162.29, 159.05, 147.30, 147.09, 132.79, 132.73,126.14, 125.73, 114.21, 62.24. |
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