HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phthalimide → 4-Amino-5,7-dichloro-2,3-dihydro-2-methylbenzofuran
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phthalimide | HCID 6809 | — |
| Reactant | Phthalic Anhydride | HCID 6811 | — |
| Reactant | 5-Allyloxy-4-chloro-2-fluoroaniline | HCID 13272926 | — |
| Reactant | HCID 53865284 | HCID 53865284 | — |
| Reactant | HCID 67926703 | HCID 67926703 | — |
| Product | 4-Amino-5,7-dichloro-2,3-dihydro-2-methylbenzofuran | HCID 53971178 | — |
Reaction Steps
4-amino-5,7-dichloro-2,3-dihydro-2-methylbenzofuran (38A) was prepared as an orange oil in four steps from 3-(allyloxy)-4,6-dichloroaniline and phthalic anhydride by the procedures described for preparing Example 19 from 19A, followed by hydrazinolysis of the phthalimide intermediate as described for the preparation of 37A.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05053071 |
| Source dataset | uspto-grants-1991_10 |
| ORD ID | ord-ef98d9a0f1ae4f89b08f51a09df87786 |
| Source note | uspto-grants-1991_10 |