HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1707155Generated: October 25, 2026
Acetic Anhydride → 3-(2,4-Bis(diethylamino)phenyl)-3-(4-(diethylamino)-phenyl)-4,5,6,7-tetrachlorophthalide
https://huagongshe.com/reaction/1707155
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 | 3,4,5,6-Tetrachloro-2-carboxy-4'-diethylaminobenzophenone | HCID 19956611 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 3-(2,4-Bis(diethylamino)phenyl)-3-(4-(diethylamino)-phenyl)-4,5,6,7-tetrachlorophthalide | HCID 54075756 | 61.6% |
Reaction Steps
A mixture of 2-(4-(diethylamino)benzoyl)-3,4,5,6-tetrachlorobenzoic acid (8.70 g.) N,N,N',N'-tetraethyl-m-phenylenediamine (4.85 g.) and acetic anhydride (5 ml.) was heated (to 90° C.). Addition of methanol (10 ml.) and slurrying the resulting product with methanol (20 ml.) afforded 3-(2,4-bis(diethylamino)phenyl)-3-(4-(diethylamino)phenyl)-4,5,6,7-tetrachlorophthalide (I: X=Y4 =(CH3CH2)2N, Y2 =H, Z4 =Z5 =Z6 =Z7 =Cl) (7.85 g., m.p. 196°-197° C.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04209618 |
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| Source dataset | uspto-grants-1980_06 |
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| ORD ID | ord-63ba37d2aa38465a9ba0ed6c1c889503 |
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| Source note | uspto-grants-1980_06 |
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