HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methyl vinyl ketone → 1,3-dihydro-1-(1-methylethenyl)-3-(3-oxobutyl)-2H-benzimidazol-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methyl vinyl ketone | HCID 6570 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 1,3-Dihydro-1-(1-methylvinyl)-2H-benzimidazol-2-one | HCID 100278 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 1,3-dihydro-1-(1-methylethenyl)-3-(3-oxobutyl)-2H-benzimidazol-2-one | HCID 20288038 | 100% |
Reaction Steps
A mixture of 34.8 parts of 1,3-dihydro-1-(1-methylethenyl)-2H-benzimidazol-2-one, 28 parts of 3-buten-2-one, 20.2 parts of N,N-diethylethanamine and 270 parts of tetrahydrofuran is stirred and refluxed over week-end. The reaction mixture is evaporated, yielding 48.8 parts (100%) of 1,3-dihydro-1-(1-methylethenyl)-3-(3-oxobutyl)-2H-benzimidazol-2-one as a residue.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04219559 |
| Source dataset | uspto-grants-1980_08 |
| ORD ID | ord-6b398bf6e23c49129796981354a159a8 |
| Source note | uspto-grants-1980_08 |