HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 27025Generated: October 30, 2026
Acetic Anhydride → 2,4-Bis(dimethylamino)phenyl-3-(4-(dimethylamino)phenyl)4,5,6,7-tetrachlorophthalide
https://huagongshe.com/reaction/27025
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | 1,3-Benzenediamine, N1,N1,N3,N3-tetramethyl- | HCID 89715 | — |
| Reactant | HCID 20287184 | HCID 20287184 | — |
| Product | 2,4-Bis(dimethylamino)phenyl-3-(4-(dimethylamino)phenyl)4,5,6,7-tetrachlorophthalide | HCID 53656231 | 73.6% |
Reaction Steps
A mixture of 2-(4-(dimethylamino)benzoyl)-3,4,5,6-tetrachlorobenzoic acid (20.3 g.), N,N,N',N'-tetramethyl-m-phenylenediamine (88%, 9.3 g.) and acetic anhydride (74 ml.) was heated (to 95° C.) during one hour, then cooled, affording 3-(2,4-bis(dimethylamino)phenyl)-3-(4-(dimethylamino)phenyl)-4,5,6,7-tetrachlorophthalide (I: X=Y4 =(CH3)2N, Y2 =H, Z4 =Z5 =Z6 =Z7 =Cl) (20.3 g., m.p. 227°-229° C.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04220357 |
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| Source dataset | uspto-grants-1980_09 |
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| ORD ID | ord-e7243038caf84dbb909518cc4f6fc1f6 |
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| Source note | uspto-grants-1980_09 |
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