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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1591156Generated: November 1, 2026

Water → HCID 67725462, compound

https://huagongshe.com/reaction/1591156

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant2-VinylpyridineHCID 7521—
ReactantSodium AcetateHCID 517045—
ReactantHCID 19045345HCID 19045345—
SolventMethanolHCID 887—
ProductHCID 67725462HCID 6772546266%

Reaction Steps

A solution of 0.150 g (0.53 mmole) 1,3-dihydro-6-nitro-1-oxospiro[2H-indene-2,4'-piperidine] hydrochloride, 0.116 g (1.1 mmoles) 2-vinylpyridine, and 0.090 g (1.1 mmoles) sodium acetate in 1.5 ml of 1:1 methanol: water was heated at reflux for 8 hours. Ethanol was removed in vacuo. The aqueous residue was diluted with 3 ml saturated sodium bicarbonate solution and extracted with 2×10 ml ethyl acetate. The combined extracts were washed with 3 ml water brine, dried, and the solvent was removed in vacuo to give 0.195 g crude product. This was recrystallized from ethyl acetate to give 0.123 g (66%) product, m.p. 142°-144° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05206240
Source datasetuspto-grants-1993_04
ORD IDord-18a4934b865449449717f2ab3c3af064
Source noteuspto-grants-1993_04