HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrogen Bromide → HCID 70579172, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrogen Bromide | HCID 260 | — |
| Reactant | HCID 70577346 | HCID 70577346 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | HCID 70579172 | HCID 70579172 | — |
Reaction Steps
1'-Benzyl-4-methoxyxanthene-9-spiro-4'-piperidine is demethylated using 45% w/v hydrobromic acid in glacial acetic acid as described in Example 4 to give 1'-benzyl-4-hydroxyxanthene-9-spiro-4'-piperidine converted to its hydrochloride, m.p. 164° C. on recrystallisation from ethanol-ether.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04268514 |
| Source dataset | uspto-grants-1981_05 |
| ORD ID | ord-9d426c3c896846ec92ab7ba8583f6aa6 |
| Source note | uspto-grants-1981_05 |