HuagongsheHuagongshe Chemistry Print Report · For research reference only
1-(2-Furoyl)piperazine → 5,6-Dimethoxy-3(4-furoyl piperazino)methylene oxindole
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1-(2-Furoyl)piperazine | HCID 550206 | — |
| Reactant | HCID 178486553 | HCID 178486553 | — |
| Product | 5,6-Dimethoxy-3(4-furoyl piperazino)methylene oxindole | HCID 70601886 | — |
Reaction Steps
3.0 g. of 5,6-Dimethoxy-3-hydroxymethylene oxindole was reacted with 4.0 g. N-furoyl piperazine as described in Example 2 except that 0.10 g. toluene sulfone acid was added as a catalyst. Yield 3.46 g. of product, m.p. 158°-160° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04176191 |
| Source dataset | uspto-grants-1979_11 |
| ORD ID | ord-480b826da78b4e26b491233566a86978 |
| Source note | uspto-grants-1979_11 |