HuagongsheHuagongshe Chemistry Print Report · For research reference only
1-(2-Methoxyphenyl)piperazine → Piperazine, 1-(3-((3,4-dihydro-2H-1-benzothiopyran-8-yl)oxy)-1-oxopropyl)-4-(2-methoxyphenyl)-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1-(2-Methoxyphenyl)piperazine | HCID 1346 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Reactant | HCID 20093609 | HCID 20093609 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | Piperazine, 1-(3-((3,4-dihydro-2H-1-benzothiopyran-8-yl)oxy)-1-oxopropyl)-4-(2-methoxyphenyl)- | HCID 3073923 | — |
Reaction Steps
Under argon, 110 mg (4.61×10-4 mol) of 3-[(thiochroman-8-yl)oxy]propionic acid (Indian Journal of Chemistry (1977) 15 pp. 715-719) are dissolved in 1.5 cm3 of dimethylformamide. The flask is cooled in an ice-bath. 100 mg (5.07×10-4 mol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, 71 mg (4.61×10-4 mol) of 1-hydroxybenzotriazole and 100 mg (5.07×10-4 mol) of 1-(2-methoxyphenyl)piperazine are added. The mixture is allowed to come gradually to room temperature. After 24 hours, the solvent is evaporated off. The residue is taken up in H2O and extracted with CH2Cl2. The product is dried over MgSO4.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05389668 |
| Source dataset | uspto-grants-1995_02 |
| ORD ID | ord-fc153236807c4d2c9989f1d0b940ce99 |
| Source note | uspto-grants-1995_02 |