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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 544922Generated: October 29, 2026

4,6-Dichloroindoline → 4-Chloro-5-fluoroindoline

https://huagongshe.com/reaction/544922

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,6-DichloroindolineHCID 16244448—
Reactantethyl 4-chloro-5-fluoro-1H-indole-2-carboxylateHCID 18986263—
Product4-Chloro-5-fluoroindolineHCID 44182339—

Reaction Steps

The above ethyl 4-chloro-5-fluoroindole-2-carboxylate was treated in a manner similar to Reference Example 10-(3), (4) and 1 to give the titled compound, 4-chloro-5-fluoroindoline as a brown oil. APCI-Mass m/Z 172/174 (M+H). 1H-NMR (DMSO-d6) δ 2.97 (t, J=8.7 Hz, 2H), 3.48 (td, J=8.7, 1.9 Hz, 2H), 5.67 (s, 1H), 6.37 (dd, J=8.5, 3.7 Hz, 1H), 6.90 (t, J=9.2 Hz, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07935674B2
Source datasetuspto-grants-2011_05
ORD IDord-2b3a6d59dde54cb28a588000d983b020
Source noteuspto-grants-2011_05