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CAS No. : | 13472-61-2 | MDL No. : | MFCD07781180 |
Formula : | C6H6INO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | NTXRNCUPGYOZCN-UHFFFAOYSA-N |
M.W : | 235.02 | Pubchem ID : | 23423786 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
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 |
---|---|---|
81% | To an ice-cooled solution of isopropylmagnesium chloride (1.61 M inTHF, 4.64 mL, 7.47 mmol) in THF (20 mL) was slowly added n-BuLi(1.5 M in hexane, 4.98 mL, 7.47 mmol). The mixture was then stirred for 5 min to give a yellow solution, then 5-bromo-2-methoxypyridine (1.405 g, 0.98 mL, 7.10 mmol, 95%) was added and the resulting solution was stirred for 45 min at 0 C. Molecular iodine (3.79 g, 14.94 mmol) was added and the mixture was stirred for 30 min at 0 C then for 1 h at r.t. Sat. aq NH4Cl (5 mL) was then added, and the phases were separated. The aqueous phase was extracted with EtOAc (2 × 75mL) and the combined organic layers were dried over MgSO4, filtered,and concentrated in vacuo. The resulting crude product was purified by silica gel chromatography (EtOAc-heptanes, 5-80%) to afford 4. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine; In N,N-dimethyl-formamide; at 50℃; for 1.5h;Inert atmosphere; | To a 25-mL flask equipped with a magnetic stir bar and a condenser crowned with argon balloon, charged with a mixture of anhydrous DMF (4 mL) and <strong>[13472-61-2]5-iodo-2-methoxypyridine</strong> (0.99 g, 0.042 mmol), degassed for 2 h using a stream of argon slowly bubbled through the solution at rt. during vigorous stirring, phenylacetylene (0.055 mmol), Pd(PPh3)2Cl2 (38 mg), CuI (8 mg) were added. Subsequently anhydrous Et3N (1.5 mL) was added over 10 minutes and the mixture was heated at 50 C for 90 minutes. After this time the reaction mixture was cooled to rt. and aqueous saturated NaCl (10 mL) was added, the mixture was extracted with ethyl acetate (3 x 50 mL) and the combined organic layers were washed with brine (5 mL), dried over MgSO4 and filtered through the pad of Celite. Concentration in vacuo and purification by flash column chromatography (silica gel, n-hexane : ethyl acetate 9 : 1) yielded 1d in 90% yield as colourless oil. |