HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1707149Generated: October 30, 2026
Benzoic Acid → 3-(2,4-Bis(diethylamino)phenyl)-3-(4-(diethylamino)phenyl)phthalide
https://huagongshe.com/reaction/1707149
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzoic Acid | HCID 243 | — |
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | N~1~,N~1~,N~3~,N~3~-Tetraethylbenzene-1,3-diamine | HCID 19382815 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 3-(2,4-Bis(diethylamino)phenyl)-3-(4-(diethylamino)phenyl)phthalide | HCID 53909156 | — |
Reaction Steps
A mixture of 2-(4-diethylamino)benzoyl)benzoic acid (5.94 g.), N,N,N',N'-tetraethyl-m-phenylenediamine (4.84 g.) and acetic anhydride (3 ml.) was heated at 70° C. Addition of methanol (20 ml.) afforded 3-(2,4-bis(diethylamino)phenyl)-3-(4-(diethylamino)phenyl)phthalide (I: X=Y4 =(CH3CH2)2N, Y2 =Z4 =Z5 =Z6 =Z7 =H) (7.1 g., 135°-137° 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-ef80a49371654fde881722370194928b |
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| Source note | uspto-grants-1980_06 |
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