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CAS No. : | 20532-34-7 | MDL No. : | MFCD04972640 |
Formula : | C9H8OS | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | JSYSQUAJOCDMJW-UHFFFAOYSA-N |
M.W : | 164.22 | Pubchem ID : | 2795446 |
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 |
---|---|---|
70% | With potassium hydroxide; In dimethyl sulfoxide; | Step A Preparation of 5-Methoxymethylbenzo [b]thiophene To a stirred mixture of powdered KOH (18.9 g, 0.336 mol) in dimethylsulfoxide (100 ml) was added <strong>[20532-34-7]5-hydroxymethylbenzo[b]thiophene</strong> (13.8 g, 0.084 mol) in 25 ml of dimethylsulfoxide. Then methyl iodide (23.9 g, 0.168 mol) was added dropwise at ambient temperature over several minutes. Stirring was continued for 11/2 hours. The mixture was filtered, diluted with water (150 ml) and extracted with methylene chloride (200 ml) in three portions. The combined extracts were washed with water, dried over anhydrous Na2 SO4, filtered and concentrated in vacuo. This gave 14.1 g of amber liquid. Distillation gave 10.47 g of colorless liquid, b.p. 2.2 mm Hg 110-111 C. (Yield 70%). |