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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 241732Generated: October 31, 2026

Hydrochloric Acid → 5-(Aminomethyl)indolin-2-one

https://huagongshe.com/reaction/241732

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-Oxo-2,3-dihydro-1H-indole-5-carbonitrileHCID 2773346—
ReactantHCID 178418361HCID 178418361—
SolventMethanolHCID 887—
Product5-(Aminomethyl)indolin-2-oneHCID 17982555—

Reaction Steps

A solution of the compound obtained in Step B (35 mmoles) in MeOH (500 ml) is added to 6 ml of concentrated HCl. The reaction mixture is stirred for 3 days under 10 bars of hydrogen. After filtration over Celite, the filtrate is evaporated to dryness to yield the title product in the form of a white powder, which is used directly in the next reaction.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653073B2
Source datasetuspto-grants-2014_02
ORD IDord-0832d3d1490c4754aba1537ca71e6789
Source noteuspto-grants-2014_02