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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 24376Generated: October 25, 2026

2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-6-carbaldehyde → 3-(2,2-Dimethylchroman-6-ylmethylene)-5-fluoro-1,3-dihydroindol-2-one

https://huagongshe.com/reaction/24376

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-6-carbaldehydeHCID 1797751—
Reactant5-fluoro-1,3-dihydro-2H-indol-2-oneHCID 3731012—
Product3-(2,2-Dimethylchroman-6-ylmethylene)-5-fluoro-1,3-dihydroindol-2-oneHCID 54405461—

Reaction Steps

2,2-Dimethyl-6-formylchromane (commercially available) was condensed with 5-fluoro-2-oxindole to give 0.3 g of 3-(2,2-Dimethylchroman-6-ylmethylene)-5-fluoro-1,3-dihydroindol-2-one as a yellow-orange solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06855730B2
Source datasetuspto-grants-2005_02
ORD IDord-7a06d2849b7a4e5bb350a97a0b22211f
Source noteuspto-grants-2005_02