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CAS No. : | 17564-64-6 | MDL No. : | MFCD00005898 |
Formula : | C9H6ClNO2 | Boiling Point : | - |
Linear Structure Formula : | C6H4(C(O))2NCH2Cl | InChI Key : | JKGLRGGCGUQNEX-UHFFFAOYSA-N |
M.W : | 195.60 | Pubchem ID : | 87154 |
Synonyms : |
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Signal Word: | Danger | Class: | 6.1 |
Precautionary Statements: | P261-P273-P280-P301+P310-P305+P351+P338 | UN#: | 2811 |
Hazard Statements: | H301-H315-H317-H319-H335-H412 | 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 |
---|---|---|
21% | (Bis(trimethylsilyl)amino)lithium (2.4 mL of a 1 M solution in THF, 2.4 mmol) was added dropwise to a solution of <strong>[473838-66-3]benzyl 3,3-dimethyl-4-oxo-piperidine-1-carboxylate</strong> (500 mg, 2 mmol) in THF (7 mL) at -78 C under N2. After 90 minutes, a solution of 2- (chloromethyl)isoindoline-1,3-dione (560 mg, 3 mmol) in THF (2 mL) was added. The reaction mixture was stirred for 1 hour then quenched by the addition of saturated aqueous NH4Cl solution (~2 mL). The reaction mixture was diluted with EtOAc, washed with a saturated aqueous sodium bicarbonate solution and brine. The organic phase was dried (MgSO4), filtered and concentrated in vacuo. The residue was purified by column chromatography (silica, PE/EtOAc gradient elution) and then by reverse phase chromatography (C18, MeCN / water- 0.1% ammonium hydroxide as eluent) to give benzyl 5-[(1,3-dioxoisoindolin-2-yl)methyl]-3,3-dimethyl-4-oxo-piperidine-1- carboxylate as a colourless oil (180 mg, 21%); MS m/z: 421 (M+H)+. |