HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → HCID 20288035, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Thiophene | HCID 8030 | — |
| Reactant | HCID 5047032 | HCID 5047032 | — |
| Reactant | HCID 178418361 | HCID 178418361 | — |
| Catalyst | Platinum | HCID 23939 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 20288035 | HCID 20288035 | 81% |
Reaction Steps
To 2 parts of a solution of 2 parts of thiophene in 40 parts of ethanol are added 71 parts of 2-[(4,5-dichloro-2-nitrophenyl)-amino]-ethanol and 400 parts of methanol. The whole is hydrogenated at normal pressure and at room temperature with 2 parts of platinum-on-charcoal catalyst 5%. After the calculated amount of hydrogen is taken up, the catalyst is filtered off and the filtrate is evaporated. The residue is taken up in methylbenzene and the latter is evaporated again. The solid residue is stirred in 2,2' -oxybispropane. The product is filtered off and dried, yielding 50 parts (81%) of 2-[(2-amino-4,5-dichlorophenyl)amino]ethanol; mp. 120° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04254127 |
| Source dataset | uspto-grants-1981_03 |
| ORD ID | ord-ecea52eac0a542f68e0c0baceedf3536 |
| Source note | uspto-grants-1981_03 |