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CAS No. : | 14437-03-7 | MDL No. : | MFCD00453717 |
Formula : | C9H11NO4S | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | KNVDHKOSDVFZTO-UHFFFAOYSA-N |
M.W : | 229.25 | Pubchem ID : | 84437 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-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 |
---|---|---|
90% | at 120℃; for 0.333333h;Sealed tube; Microwave irradiation; | General procedure: The 4-substituted methyl (phenylsulfonyl)carbamate was dissolved in the chosen alcohol (2 mL) in a microwave vial, which was closed using an aluminum open-top seal with PTFE-faced septum. The reaction mixture was heated under microwave irradiation at 100-120 oC for 20-60 min. The crude reaction mixture was concentrated under reduced pressure and the residue was purified using silica gel column chromatography to yield the desired (aryl)carbamate. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70% | General procedure: A solution of a 4-subsituted benzenesulfonamide in dry dichloromethane was placed on an ice bath and cooledto 0 °C after which trimethylamine was added dropwise. The mixture was stirredat 0 °C for 10 min before methyl chloroformate was added dropwise. Afterstirring for an additional 30 min at 0 °C, the ice bath was removed and the reaction mixture was allowed to warm to room temperature over 2 h. The reaction mixture was diluted with dichloromethane, washed with 1?M HCl (aq.),water, and brine in sequence, dried with MgSO4 and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to yield the desired 4-substituted methyl(phenylsulfonyl)carbamate. |
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