HuagongsheHuagongshe Chemistry Print Report · For research reference only
Pyrrolidine → 2-[4-Chloro-2-(6-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-phenoxy]-2-methyl-propionic acid tert-butyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Pyrrolidine | HCID 31268 | — |
| Reactant | 6-Chloro-1,3-dihydroindol-2-one | HCID 736344 | — |
| Reactant | 2-(4-Chloro-2-formyl-phenoxy)-2-methyl-propionic acid tert-butyl ester | HCID 57566221 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 2-[4-Chloro-2-(6-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-phenoxy]-2-methyl-propionic acid tert-butyl ester | HCID 68956451 | 46.1% |
Reaction Steps
In a manner similar to the method described in Example 227b, 2-(4-chloro-2-formyl-phenoxy)-2-methyl-propionic acid tert-butyl ester (9 g, 30 mmol) was reacted with 6-chlorooxindole (5.1 g, 30 mmol) and pyrrolidine (2.49 g, 35 mmol) in methanol to give E/Z 2-[4-chloro-2-(6-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-phenoxy]-2-methyl-propionic acid tert-butyl ester as a yellow oil (6.2 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07495007B2 |
| Source dataset | uspto-grants-2009_02 |
| ORD ID | ord-0374ba3e35f34623be847186cd498e2c |
| Source note | uspto-grants-2009_02 |