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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 58596Generated: October 24, 2026

6,6-Dimethyl-5,7-dioxaspiro(2.5)octane-4,8-dione → 1-(3,5-Difluorophenyl)-2-oxopyrrolidine-3-carboxylic acid

https://huagongshe.com/en/reaction/58596

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6,6-Dimethyl-5,7-dioxaspiro(2.5)octane-4,8-dioneHCID 79720—
Reactant3,5-DifluoroanilineHCID 96595—
SolventEthanolHCID 702—
Product1-(3,5-Difluorophenyl)-2-oxopyrrolidine-3-carboxylic acidHCID 2468920948%

Reaction Steps

This compound was prepared according to general method 1 starting from 6,6-dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione (0.250 g; 1.45 mmol) and 3,5-difluoroaniline (0.575 g; 4.36 mmol) in ethanol (3 mL). 1-(3,5-difluorophenyl)-2-oxopyrrolidine-3-carboxylic acid 0.167 g (48%) was obtained as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434722B2
Source datasetuspto-grants-2016_09
ORD IDord-6747e784b02f4e8eadb693597e86eadd
Source noteuspto-grants-2016_09