Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Diethylamine | HCID 8021 | — |
| Reactant | HCID 22666423 | HCID 22666423 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 22666526 | HCID 22666526 | 81.5% |
Reaction Steps
In 3 mL of N,N-dimethylformamide is dissolved 1.00 g of 2-[2-(1,3-benzodioxol-5-yl)ethoxy]ethyl methanesulfonate. To the solution is added 2.54 g of diethylamine. The resulting mixture is stirred at 100° C. for 2 hours in an ampoule. After cooling, the reaction mixture is introduced into a mixture of water and ethyl acetate, pH is adjusted to 1.0 with 2 mol/L hydrochloric acid, and the aqueous layer is separated. Ethyl acetate is added to the aqueous layer, pH is adjusted to 9.5 with sodium carbonate, and the organic layer is separated. The organic layer is washed successively with water and saturated aqueous solution of sodium chloride and dried over anhydrous magnesium sulfate, the solvent is distilled off under reduced pressure, and the residue is purified by column chromatography (eluent:chloroform:methanol=20:1 to 10:1) to obtain 0.75 g of N-{2-[2-(1,3-benzodioxol-5-yl)ethoxy]ethyl}-N,N-diethylamine as an oily product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US06797726B1 |
|---|
| Source dataset | uspto-grants-2004_09 |
|---|
| ORD ID | ord-b28af09e3c094da4ae54029f13d78937 |
|---|
| Source note | uspto-grants-2004_09 |
|---|