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CAS No. : | 30992-29-1 | MDL No. : | MFCD00042973 |
Formula : | C9H17NO4 | Boiling Point : | - |
Linear Structure Formula : | H2O(C2H3NO)C2H4C5H8O2 | InChI Key : | MFNXWZGIFWJHMI-UHFFFAOYSA-N |
M.W : | 203.24 | Pubchem ID : | 2733845 |
Synonyms : |
|
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 |
---|---|---|
88% | Stage #1: With pyridine; di-<i>tert</i>-butyl dicarbonate In acetonitrile at 20℃; for 0.333333 h; Stage #2: With ammonia In water; acetonitrile for 4.33333 h; |
A mixture of 2-(tert-butoxycarbonylamino)-2-methylpropanoic acid (CAN: 30992-29-1, 20 g, 98 mmol), di-tert-butyl dicarbonate (CAN 24424-99-5, 27.67 g, 147 mmol) and pyridine (4.6 mL) in acetonitrile (500 mL) was stirred at room temperature for 20 min. Ammonia (10 mL) was added dropwise for 20 min. The resulting reaction mixture was stirred for 4 h. After removal of most of the solvent under reduced pressure, the solid was filtered off and washed with acetonitrile. The solid was brought to dryness under reduced pressure to give the title compound (17.5 g, 88percent) as white solid; MS (EI): m/e 225.1 [M+Na]+. |
88% | Stage #1: With pyridine; di-<i>tert</i>-butyl dicarbonate In acetonitrile at 20℃; for 0.333333 h; Stage #2: With ammonia In acetonitrile for 4.3 h; |
A mixture of 2-(tert-butoxycarbonylamino)-2-methylpropanoic acid (CAN: 30992-29-1, 20 g, 98 mmol), di-tert-butyl dicarbonate (CAN 24424-99-5, 27.67 g, 147 mmol) and pyridine (4.6 mL) in acetonitrile (500 mL) was stirred at room temperature for 20 min. Ammonia (10 mL) was added dropwise for 20 min. The resulting reaction mixture was stirred for 4 h. After removal of most of the solvent under reduced pressure, the solid was filtered off and washed with acetonitrile. The solid was brought to dryness under reduced pressure to give the title compound (17.5 g, 88percent) as white solid; MS(EI): m/e 225.1 [M+Na]+. |
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