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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1111249Generated: October 29, 2026

Water → HCID 13784512, compound

https://huagongshe.com/reaction/1111249

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant3,4,5,6-Tetrahydrophthalic anhydrideHCID 12475—
ReactantHCID 13784511HCID 13784511—
SolventAcetic AcidHCID 176—
ProductHCID 13784512HCID 1378451236.7%

Reaction Steps

A mixture of 2-fluoro-4-nitro-5-(2-propynylamino)-aniline (1.41 g) and 3,4,5,6-tetrahydrophthalic anhydride (1.33 g) was suspended in acetic acid (7 ml), followed by heating under reflux for 4 hours. The reaction mixture was cooled, water was added thereto, and the resultant mixture was extracted with ethyl acetate. The extract was washed with water and an aqueous sodium bicarbonate solution, dried and concentrated to give 2-[2-fluoro-4-nitro-5-(2-propynylamino)phenyl]-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione (0.85 g). m.p., 183.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04978787
Source datasetuspto-grants-1990_12
ORD IDord-0af0500da81e4153a8c9ff4bc3c21a0b
Source noteuspto-grants-1990_12