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CAS No. : | 1073-72-9 | MDL No. : | MFCD00002351 |
Formula : | C7H8OS | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | QASBCTGZKABPKX-UHFFFAOYSA-N |
M.W : | 140.20 | Pubchem ID : | 14086 |
Synonyms : |
|
Signal Word: | Danger | Class: | 9 |
Precautionary Statements: | P261-P264-P271-P280-P302+P352-P304+P340+P312-P305+P351+P338-P310-P332+P313-P362-P403+P233-P405-P501 | UN#: | 3335 |
Hazard Statements: | H315-H318-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 |
---|---|---|
60% | With caesium carbonate; potassium iodide In acetonitrile at 80℃; Inert atmosphere | General procedure: Method C: 2-Chloromethyl-1-methyl-5-nitro-1H-imidazol (6a) (1 g, 5.7 mmol), Cs2CO3 (6.6 g, 34.2 mmol) and KI (0.095 g, 0.57 mmol) were stirred in MeCN under inert atmosphere. p-Hydroxyphenyl methyl sulfide (0.8 g, 5.7 mmol) in MeCN was added via a pressure equalized dropping funnel. The mixture was reflux at 80 °C overnight under inert atmosphere. The reaction mixture was filtered and the solvent evaporated. The residue was dissolved in CHCl3 and washed with 10percent K2CO3 (3 x 15 mL). The organic layer was collected, dried over MgSO4, concentrated to give crude in the form of yellow oil. Purification of product 7a (0.95 g, 60percent) was done by the same procedure as described in method A. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73.6 %Chromat. | at 28 - 50℃; for 5.83333 h; | Preparing a solution of 4-methylmercapto-phenol in acetone from 70.0 g (0.5 m) of 4- methylmercapto-phenol (purity >99.9 percent) and 70.0 g (90 ml) anhydrous acetone (100 percent pure), then adding the latter to the reaction medium of step a) over a period of 120 min while keeping the reaction mixture under constant stirring at 28 °C; stirring is performed thereafter at this temperature for 3 further hours.Heating progressively the resulting reaction medium from 28 to 50 °C over a period of 50 min; eventually keeping stirring for an additional period of maximum 60 min at 50 °C before pouring 500 ml of preheated water (68 °C) onto the above reaction mixture (quenching). Stirring the whole mass at 55 °C until complete dissolution of the components, then separating the aqueous lower phase from the acetone phase for elimination and eventually keeping the remaining acetone phase at 50 °C for the subsequent step. |
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