Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Methanesulfonyl chloride | HCID 31297 | — |
| Reactant | Lithium Chloride | HCID 433294 | — |
| Reactant | HCID 22048331 | HCID 22048331 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 22048335 | HCID 22048335 | 74.2% |
Reaction Steps
To a stirred solution of [1-(3-sec-butoxy-benzyl)-6,7-dimethoxy-isoquinolin-4-yl]-methanol (2.7 g, 7.08 mmol) in dichloromethane (14 mL) was added triethylamine (3.0 mL, 21.2 mmol) and methanesulphonyl chloride (1.24 mL, 15.6 mmol) dropwise at 0° C. The reaction mixture was stirred at 0° C. for 15 minutes and lithium chloride (1.4 g, 33 mmol) was added at this temperature. The reaction mixture was stirred at room temperature for 15 hrs and diluted with dichloromethane (150 mL). The reaction mixture was washed with saturated aqueous sodium chloride solution (100 mL), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo to afford 1-(3-sec-butoxy-benzyl)-4-chloromethyl-6,7-dimethoxy-isoquinoline (2.1 g, 74% yield) as a brown oil. The crude product was used without further purification.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07067529B2 |
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| Source dataset | uspto-grants-2006_06 |
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| ORD ID | ord-688fe03c977d4db4af2fcf7cf920304c |
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| Source note | uspto-grants-2006_06 |
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