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CAS No. : | 1109230-25-2 | MDL No. : | MFCD11847788 |
Formula : | C9H8BrNO | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | LYXUIQHDUVHEMZ-UHFFFAOYSA-N |
M.W : | 226.07 | Pubchem ID : | 21865472 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-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 |
---|---|---|
35% | With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane at 100℃; for 24 h; | [0121] A mixture of 5-bromo-3,4-dihydro-2H-isoquinolin-l-one (4.3 g, 18.9 mmol) and 2,3-dicyano-5,6-dichloro-l,4-benzoquinone (8.6 g, 37.9 mmol) in 1,4-dioxane (76 mL) was stirred at 100 °C for 24 h. The reaction mixture was evaporated and the residue was taken up in ethyl acetate (500 mL) and washed with 10percent aqueous sodium hydroxide (2 x 500 mL). The layers were separated and the aqueous layer was extracted with ethyl acetate (4 x 300 mL). The combined organic layers were dried over sodium sulfate, evaporated and purified by flash chromatography eluting with dichloromethane: methanol (99: 1 -^96:4) to give the title compound (1.49 g, 6.65 mmol, 35percent) as a yellow solid. LCMS: 94percent, Rt 1.243, ESMS m/z 224 (M+H)+. |
35% | With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane at 100℃; for 24 h; | -1. 5-Bromo-2H-isoquinolin-l-one. [00114] A mixture of 5-bromo-3,4-dihydro-2H-isoquinolin-l -one (Preparation 3-1, 4.3 g, 18.9 mmol) and 2,3-dicyano-5,6-dichloro-l,4-benzoquinone (8.6 g, 37.9 mmol) in 1,4-dioxane (76 mL) was stirred at 100 °C for 24 h. The reaction mixture was evaporated and the residue was taken up in ethyl acetate (500 mL) and washed with 10percent aqueous sodium hydroxide (2 x 500 mL). The layers were separated and the aqueous layer was extracted with ethyl acetate (4 x 300 mL). The combined organic layers were dried over sodium sulfate, evaporated and purified by flash chromatography eluting with dichloromethane:methanol (99: 1 -^96:4) to give the title compound (1.49 g, 6.65 mmol, 35percent) as a yellow solid. LCMS: 94percent, Rt 1.243, ESMS m/z 224 (M+H)+. |
35% | With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane at 100℃; for 24 h; | [001081 A mixture of 5-bromo-3,4-dihydro-2H-isoquinolin-1-one (Preparation 3-1, 4.3 g, 18.9 mmol) and 2,3-dicyano-5,6-dichloro-1,4-benzoquinone (8.6 g, 37.9 mmol) in 1,4-dioxane (76 mL) was stirred at 100 °C for 24 h. The reaction mixture was evaporated and the residue was taken up in ethyl acetate (500 mL) and washed with 10percent aqueous sodium hydroxide (2 x 500 mL). The layers were separated and the aqueous layer was extracted with ethyl acetate (4 x 300 mL). The combined organic layers were dried over sodium sulfate, evaporated and purified by flash chromatography eluting with dichloromethane:methanol (99:1 -96:4) to give the title compound (1.49 g, 6.65 mmol, 35percent) as a yellow solid. LCMS: 94percent, Rt 1.243, ESMS m/z 224 (M+H). |
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