HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → 2-((2-Aminophenyl)amino)ethan-1-ol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Stannous Chloride | HCID 24479 | — |
| Reactant | HC Yellow No. 2 | HCID 78637 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 2-((2-Aminophenyl)amino)ethan-1-ol | HCID 2114032 | 86% |
Reaction Steps
According to the procedure of B. Agai, et al., Tetrahedron, 32, 839, (1976), a mixture of 2-(2-nitroanilino)ethanol (43.1 g, 0.237 mol), SnCl2.2 H2O (267.0 g, 1.18 mol), and EtOH (400 mL), was heated under reflux for 4 hours. The mixture was cooled, made basic (pH8) with 2.5N NaOH, and filtered through Celite. The filtrate was concentrated to remove the EtOH and the aqueous phase was extracted with EtOAc. The combined extracts were washed with H2O and brine, dried, and concentrated. Recrystallization from EtOH gave 31.0 g (86%) of a brown solid m.p. 105°-106° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05149700 |
| Source dataset | uspto-grants-1992_09 |
| ORD ID | ord-08bb1e59f38047dc92ca8cb59ef45519 |
| Source note | uspto-grants-1992_09 |