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CAS No. : | 83-73-8 | MDL No. : | MFCD00006789 |
Formula : | C9H5I2NO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | UXZFQZANDVDGMM-UHFFFAOYSA-N |
M.W : | 396.95 | Pubchem ID : | 3728 |
Synonyms : |
Iodoquinol;5,7-Diiodo-8-hydroxyquinoline;5,7-Diiodo-8-quinolinol
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H319 | Packing Group: | N/A |
GHS Pictogram: |
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* 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 |
---|---|---|
87% | With 1-butyl-3-methyl-pyridinium dichloroiodate; at 80℃; for 1h;Inert atmosphere; | 8-Hydroxyquinoline (0.1 g, 0.69 mmol) and l-butyl-3-methylpyridinium dichloroiodate (BMPDCI) (0.31 g, 0.89 mmol) were added in 10 ml of one neck round bottomed flask in an inert atmosphere and then heated at 80 C for lhr. After the reaction was completed (TLC), ethyl acetate (10ml) was added followed by addition of water (10ml). The entire reaction mixture was extracted with ethyl acetate (3x10ml). The combined organic layers were dried using sodium sulphate and concentrated on rotavapor to afford the crude product. This was further purified by silica gel column chromatography to afford 0.24 g (87 %) of pure 5,7- diiodo-8-hydroxyquinoline as a solid. (M.P. decomposes >210 C) 1H NMR (DMSO-d6 delta/ppm): 8.88 (d, 1H, 7=4 Hz, Ar-H), 8.3 (s, 1H, Ar-H), 8.27-8.31 (dd, 1H, 7=1.3 Hz, 8.6 Hz, Ar-H), 7.75 (q, 1H, 7=4.2 Hz, 8.6 Hz, Ar-H). |
82% | With sodium periodate; sulfuric acid; iodine; potassium iodide; sodium sulfite; In water; acetic acid; at 25℃; for 3h; | General procedure: Iodination of phenol (1d) in the presence of Na2SO3 (typical procedure). A 100-mL round-bottom flask was charged with a solution of 3 mmol of phenol in 10 mL of acetic acid, and a solution of KI3 and Na2SO3 (prepared preliminarily by addition of 3 mmol of iodine and 3 mmol of Na2SO3 to a solution of 3 mmol of potassium iodide in 3 mL of water) was added rapidly. At the same time, a solution of 3 mmol of NaIO4 in 5 mL of water was added, and 0.5 mL of sulfuric acid was rapidly added using a pressure-equalizing dropping funnel. The mixture was stirred at 25C, the progress of the reaction being monitored by TLC. When the reaction was complete, the mixture was poured into ice-cold water, and the solid product was separated by vacuum filtration, washed twice with deionized water, and dried. |