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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 839542Generated: October 30, 2026

Tetrachlorophthalic anhydride → 2-(2-Isobutoxy-4-(dimethylamino)benzoyl)benzoic acid

https://huagongshe.com/reaction/839542

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrachlorophthalic anhydrideHCID 8326—
Reactant1,3-Benzenediamine, N1,N1,N3,N3-tetramethyl-HCID 89715—
CatalystZincchlorideHCID 3007855—
SolventChlorobenzeneHCID 7964—
Product2-(2-Isobutoxy-4-(dimethylamino)benzoyl)benzoic acidHCID 23343377—

Reaction Steps

In a manner similar to that of part A of Example 3 condensation of tetrachlorophthalic anhydride (1.92 g.) and N,N,N',N'-tetramethyl-m-phenylenediamine (1.64 g.) in contact with zinc chloride (1.35 g.) and with chlorobenzene (40-45 ml.) as diluent afforded 2-(2,4-bis(dimethylamino)benzoyl)-3,4,5,6-tetrachlorobenzoic acid (II: Y'2 = Y'4 = (CH3)2N, Z4 = Z'5 = Z'6 = Z7 = Cl) (m.p. 199°-201° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04096176
Source datasetuspto-grants-1978_06
ORD IDord-00fc089ed7494f2fa6adce3dc56ffa53
Source noteuspto-grants-1978_06