HuagongsheHuagongshe Chemistry Print Report · For research reference only
Piperazine → HCID 19889953, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Piperazine | HCID 4837 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 19889944 | HCID 19889944 | — |
| Product | HCID 19889953 | HCID 19889953 | 74% |
Reaction Steps
To 1 g (5.48 mmol) of (isochroman-1-yl)methyl chloride obtainable by Reference Example 1 was added 2 g (23.3 mmol) of piperazine, and the resulting mixture was heated at 100° to 120° C. for 10 hours. After being cooled, the mixture was basified with the addition of 10% sodium hydroxide and then extracted with chloroform. The extract was washed with water and then dried. The solvent was evaporated off. The residue was distilled under reduced pressure (150° C./15 mmHg) to give 0.9 g (74%) of the desired compound as an oily.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05128369 |
| Source dataset | uspto-grants-1992_07 |
| ORD ID | ord-e1ae68136ecc42c8ad7fd0fd7870df91 |
| Source note | uspto-grants-1992_07 |