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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 231439Generated: October 26, 2026

3a,4,5,7a-Tetrahydro-2-benzofuran-1,3-dione → N-[4-chloro-2-fluoro-5-(diisopropylaminomethyl)phenyl]-3,4,5,6-tetrahydrophthalimide

https://huagongshe.com/reaction/231439

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3a,4,5,7a-Tetrahydro-2-benzofuran-1,3-dioneHCID 12726601—
Reactant4-Chloro-2-fluoro-5-(diisopropylaminomethyl)anilineHCID 19739597—
SolventAcetic AcidHCID 176—
ProductN-[4-chloro-2-fluoro-5-(diisopropylaminomethyl)phenyl]-3,4,5,6-tetrahydrophthalimideHCID 200323556.6%

Reaction Steps

By the method of Example 2, Step H, 0.50 g (0.0020 mole) of 4-chloro-2-fluoro-5-(diisopropylaminomethyl)aniline and 0.85 g (0.0056 mole) of tetrahydrophthalic anhydride in 20 ml of acetic acid were reacted yielding 0.052 g of N-[4-chloro-2-fluoro-5-(diisopropylaminomethyl)phenyl]-3,4,5,6-tetrahydrophthalimide. The nmr and ir spectra were consistent with the proposed structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04846882
Source datasetuspto-grants-1989_07
ORD IDord-718b691cedde4433b747b2e13c0097aa
Source noteuspto-grants-1989_07