Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 550404Generated: October 29, 2026

Water → HCID 18451952, compound

https://huagongshe.com/reaction/550404

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBromineHCID 24408—
Reactant1',3'-dihydrospiro[imidazolidine-4,2'-indene]-2,5-dioneHCID 279999—
SolventHydrogen BromideHCID 260—
ProductHCID 18451952HCID 18451952—

Reaction Steps

To a stirred solution of (±)-spiro[imidazolidine-4,2′-indane]-2,5-dione (1.0 g, 4.97 mmol) in 48% HBr (30 mL) was added Br2 (3.1 g, 19.9 mmol) and the reaction mixture was allowed to stir at ambient temperature for 4 days. The reaction was poured onto ice (30 g) and H2O (10 mL) and the solid precipitate filtered off, washed with H2O (4×20 mL), and dried in vacuo to give the title compound as a light brown solid. MS: m/z=282 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07947678B2
Source datasetuspto-grants-2011_05
ORD IDord-e83b068ba32f4e898bfd3fb7bc45e588
Source noteuspto-grants-2011_05