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CAS No. : | 114873-06-2 | MDL No. : | MFCD01862944 |
Formula : | C15H21NO4 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | - |
M.W : | 279.33 g/mol | Pubchem ID : | 2761470 |
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: |
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Yield | Reaction Conditions | Operation in experiment |
---|---|---|
97% | With sodium hydroxide In 1,4-dioxane; water at 0 - 20℃; for 18 h; | A solution of L-3-methylphenylalanine (448 mg, 2.5 MMOL) in a mixture of dioxane/water (2: 1,5 ml) and 1M sodium hydroxide (1.5 ml) was stirred and cooled in an ice-water bath. Di-tert-butyl dicarbonate (600 mg, 2.75 MMOL) was added and stirring was continued at room temperature. The reaction was T monitored by tic (ethyl ACETATE/METHANOL/WATER 5: 1: 1). After 18 hours, the solution was CONCENTRATED IN VACUO, acidified with 10percent citric acid solution to pH 2-3 and extracted with ethyl acetate. The extract was washed with brine, dried (MGSO4) and evaporated to give the product as an oil, 680 mg (97percent), HPIC/MS Rt 4.18, M/Z 204 (M-TBUOH-H ). |
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