Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | 1-Isopropylpiperazine | HCID 78013 | — |
| Reactant | 3-(Dimethylamino)-2-propenal | HCID 79125 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 59848712 | HCID 59848712 | 90% |
Reaction Steps
1-Isopropylpiperazine (4.4 ml, 30.6 mmol) was added to a solution of 3-(dimethylamino)acrolein (2.82 g, 25.5 mmol) in ethanol (100 ml), followed by formaldehyde (37% solution in water, 2.3 ml, 30.6 mmol) and acetic acid (100 μl). The mixture was stirred at 50° C. for 3.5 hours, then room temperature for 15 hours. The solution was concentrated in vacuo, re-dissolved in ethanol (25 ml) and then formaldehyde (2.3 ml) and acetic acid (100 μl) were added. The mixture was stirred at 60° C. for 4 hours then concentrated in vacuo to yield the title compound as a pale yellow oil (6.10 g, 90%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07897778B2 |
|---|
| Source dataset | uspto-grants-2011_03 |
|---|
| ORD ID | ord-c43a664ea5894f7c8c59dda098f33aed |
|---|
| Source note | uspto-grants-2011_03 |
|---|