HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → 3-(2,4-Bis(diethylamino)phenyl)3-(2-chloro-4-(diethylamino)phenyl)phthalide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | N~1~,N~1~,N~3~,N~3~-Tetraethylbenzene-1,3-diamine | HCID 19382815 | — |
| Reactant | 2-(2-Chloro-4-(diethylamino)benzoyl)benzoic acid | HCID 23343383 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 3-(2,4-Bis(diethylamino)phenyl)3-(2-chloro-4-(diethylamino)phenyl)phthalide | HCID 54473669 | 37.8% |
Reaction Steps
A mixture of 2-(2-chloro-4-(diethylamino)benzoyl)benzoic acid (6.61 g.), N,N,N',N'-tetraethyl-m-phenylenediamine (4.30 g.) and acetic anhydride (5 ml.) was allowed to stand overnight at room temperature, then diluted with methanol (10 ml.), affording 3-(2,4-bis(diethylamino)phenyl)-3-(2-chloro-4-(diethylamino)phenyl)phthalide (I: X=Y4 =(CH3CH2)2N, Y2 =Cl, Z4 =Z5 =Z6 =Z7 =H) (3.94 g., m.p. 141°-143° C.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04220357 |
| Source dataset | uspto-grants-1980_09 |
| ORD ID | ord-cb3f51f37f9745f391e48bbf6e31d9bc |
| Source note | uspto-grants-1980_09 |