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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 58595Generated: October 26, 2026

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

https://huagongshe.com/reaction/58595

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6,6-Dimethyl-5,7-dioxaspiro(2.5)octane-4,8-dioneHCID 79720—
ReactantIndan-5-amineHCID 90496—
SolventEthanolHCID 702—
Product1-(2,3-dihydro-1H-inden-5-yl)-2-oxopyrrolidine-3-carboxylic acidHCID 2468869771.7%

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 2,3-dihydro-1H-inden-5-amine (0.593 g; 4.36 mmol) in ethanol (3 mL). 1-(2,3-dihydro-1H-inden-5-yl)-2-oxopyrrolidine-3-carboxylic acid 0.255 g (71%) was obtained as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434722B2
Source datasetuspto-grants-2016_09
ORD IDord-dd8884cb3ecb43a8ae271bc771ede609
Source noteuspto-grants-2016_09