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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1860775Generated: 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/1860775

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 numberUS06531502B1
Source datasetuspto-grants-2003_03
ORD IDord-f3ff5ee87ca440b49ff29d759d8ebcce
Source noteuspto-grants-2003_03