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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 11043Generated: October 26, 2026

Maleimide → 4-(3,5-Dinitrophenyl)-9-methoxy-4,5,6,10c-tetrahydropyrrolo[3,4-c]carbazole-1,3(2H,3aH)-dione

https://huagongshe.com/reaction/11043

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMaleimideHCID 10935—
Reactant5-Methoxy-2-[2-(3,5-dinitrophenyl)ethenyl]-1H-indoleHCID 86760190—
Product4-(3,5-Dinitrophenyl)-9-methoxy-4,5,6,10c-tetrahydropyrrolo[3,4-c]carbazole-1,3(2H,3aH)-dioneHCID 8676018989%

Reaction Steps

The reaction of 5-Methoxy-2-[2-(3,5-dinitrophenyl)ethenyl]-1H-indole (II; Ar=3,5-dinitrophenyl) (40) prepared as described in example 46 with maleimide using the procedure described in example 69 gave 4-(3,5-Dinitrophenyl)-9-methoxy-4,5,6,10c-tetrahydropyrrolo[3,4-c]carbazole-1,3(2H,3aH)-dione (IV; Ar=3,5-dinitrophenyl, R10═H) (41) in a 89% yield as a glassy solid which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07094798B1
Source datasetuspto-grants-2006_08
ORD IDord-c3b23bced8d541d3b1f3575920f404ea
Source noteuspto-grants-2006_08