HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 725892Generated: October 30, 2026
Hydrogen Bromide → HCID 19709982, compound
https://huagongshe.com/reaction/725892
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrogen Bromide | HCID 260 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 19709989 | HCID 19709989 | — |
| Product | HCID 19709982 | HCID 19709982 | 36% |
Reaction Steps
A mixture of 1-methyl-4-(7-methoxy-2-benzofuranyl)piperidine (5.6 g) and 48% HBr (40 mi) was stirred at 120° C. for 30 minutes. After cooling to room temperature, the mixture was neutralized with 10% sodium hydroxide solution and extracted with 1:1 ethyl acetate/1-butanol. The organic extract was washed with brine, concentrated and the resulting oil was chromatographed (silica gel, eluting with 20% MeOH/DCM and 0.5% NH4OH) to afford 1.9 g of 1-methyl-4-(7-hydroxy-2-benzofuranyl)piperidine.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05708007 |
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| Source dataset | uspto-grants-1998_01 |
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| ORD ID | ord-500ef90c4b81465e9d978e7cde786813 |
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| Source note | uspto-grants-1998_01 |
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