HuagongsheHuagongshe Chemistry Print Report · For research reference only
2,5-Dimethoxytetrahydrofuran → 2-Chloro-5-(1-pyrrolyl)nicotinonitrile
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 2,5-Dimethoxytetrahydrofuran | HCID 79098 | — |
| Reactant | 5-Amino-2-chloropyridine-3-carbonitrile | HCID 20496209 | — |
| Solvent | Acetic Anhydride | HCID 7918 | — |
| Product | 2-Chloro-5-(1-pyrrolyl)nicotinonitrile | HCID 12919752 | 78.4% |
Reaction Steps
A solution of 5-amino-2-chloronicotinonitrile (5.0 g, 0.033 m), 2,5-dimethoxytetrahydrofuran (11 g, 0.085 m) and acetic anhydride (20 ml) was heated at reflux with stirring. After two hours, the solution was concentrated to dryness under reduced pressure (20 mm). The residue was triturated with CCl4 and filtered to yield 5.2 g (78% yield) of 2-chloro-5-(1-pyrrolyl)nicotinonitrile, m.p.=144°-146°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04393212 |
| Source dataset | uspto-grants-1983_07 |
| ORD ID | ord-6c6e347bbdf245f6833ad47ad5a62d2a |
| Source note | uspto-grants-1983_07 |