HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → 1-Acetyl-3-(3,4-methylenedioxyphenyl)-1,3-dihydroimidazo[4,5-b]pyridin-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | 2H-Imidazo[4,5-b]pyridin-2-one, 3-(1,3-benzodioxol-5-yl)-1,3-dihydro- | HCID 11961739 | — |
| Product | 1-Acetyl-3-(3,4-methylenedioxyphenyl)-1,3-dihydroimidazo[4,5-b]pyridin-2-one | HCID 12445598 | — |
Reaction Steps
A suspension of 500 mg. of 1,3-dihydro-3-(3,4-methylenedioxyphenyl)imidazo[4,5-b]pyridin-2-one in 15 ml. of acetic anhydride was heated on a steam bath overnight. The solution was evaporated in vacuo leaving a crystalline residue which was recrystallized from 20 ml. of benzene to give 1-acetyl-3-(3,4-methylenedioxyphenyl)-1,3-dihydroimidazo[4,5-b]pyridin-2-one, m.p. 211°-212° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04144341 |
| Source dataset | uspto-grants-1979_03 |
| ORD ID | ord-4d98e91611434efba340e7b5a46b028c |
| Source note | uspto-grants-1979_03 |