HuagongsheHuagongshe Chemistry Print Report · For research reference only
2-Ethyl-7-(phenylmethyl)-2,7-diazaspiro[4.4]nonane dihydrochloride → 2-Ethyl-2,7-diazaspiro[4.4]nonane dihydrochloride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2-Ethyl-7-(phenylmethyl)-2,7-diazaspiro[4.4]nonane dihydrochloride | HCID 13491810 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 2-Ethyl-2,7-diazaspiro[4.4]nonane dihydrochloride | HCID 13491811 | 196.6% |
Reaction Steps
A solution of 9.5 g (0.03 mole) 2-benzyl-7-ethyl-2,7-diazaspiro[4.4]nonane dihydrochloride in 100 ml methanol was hydrogenated with 1.0 g 20% palladium on carbon catalyst at 4.5×105Pa for 22 hours. After filtration, the solution was concentrated to a syrup and crystallized from acetonitrile to afford 6.7 g of the title compound, mp 168-172° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05097032 |
| Source dataset | uspto-grants-1992_03 |
| ORD ID | ord-c4dc0f49172741fdb1cb40d361b95d3a |
| Source note | uspto-grants-1992_03 |