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CAS No. : | 129075-49-6 | MDL No. : | MFCD07196047 |
Formula : | C10H11NO2 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | OESOLVOZJGIVMY-UHFFFAOYSA-N |
M.W : | 177.20 | Pubchem ID : | 7385098 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319 | 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 |
---|---|---|
5.3 g (89%) | With dimethyl sulfate; In methanol; sodium hydroxide; water; | EXAMPLE V 3,4-Dihydro-5-methoxy-1(2H)-isoquinolinone To a refluxing solution of 5.5 g (33.7 mmol) of 3,4-dihydro-5-hydroxy-1(2H)-isoquinolinone in 35 ml of 2N NaOH and 70 ml of methanol was added 4 ml of dimethyl sulfate. At two-hour intervals additional amounts of NaOH and dimethyl sulfate were added and the reaction was heated under reflux conditions overnight. The mixture was concentrated, diluted with 300 ml of water, and acidified (pH 2-3) with concentrated sulfuric acid. The solid which formed was collected and dried to give 5.3 g (89%) of material sufficiently pure for the next step. An analytical sample was obtained by recrystallization from acetone; mp 147-149. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Intermediate Q5-Methoxy-3,4-dihydro-2H-isoquinolin-1 -oneTo a stirring solution of 5-hydroxy-3,4-dihydroisoquinolin-1(2H)-one (200 mg, 1.226 mmol) in DMF (8 ml) was added Cs2C03 (599 mg, 1.839 mmol). The reation mixture was left to stir for 20 minutes at 50 C and then treated with methyl iodide (0.115 ml, 1.839 mmol). After stirring at 50 C for 30 min, the mixture was diluted with EtOAc water. The organic portion was separated and washed with water, brine, dried (MgS04) and concentrated in vacuo to afford the title compound as a pale yellow solid; LC-MS Rt =1.08 mins; MS m/z 178.1 [M+H]+; Method 2minLC_v002. |
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