Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1662614Generated: October 25, 2026

5-chloro-1H-indole-2,3-dione → 5-chloro-3-(2,3-dihydro-1-benzofuran-7-yl)-3-hydroxy-1,3-dihydro-2H-indol-2-one

https://huagongshe.com/reaction/1662614

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-chloro-1H-indole-2,3-dioneHCID 87203—
Reactant7-Bromo-2,3-dihydro-1-benzofuranHCID 22571869—
Product5-chloro-3-(2,3-dihydro-1-benzofuran-7-yl)-3-hydroxy-1,3-dihydro-2H-indol-2-oneHCID 6742870072.2%

Reaction Steps

With 3.00 g of 7-bromo-2,3-dihydro-1-benzofuran and 1.10 g of 5-chloroisatin as starting material, 1.32 g of the title compound (white solid) was obtained by a similar method to Step 21-1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08030499B2
Source datasetuspto-grants-2011_10
ORD IDord-fbf296efacf2463093b7ac7b4be8307d
Source noteuspto-grants-2011_10