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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1076712Generated: October 25, 2026

Water → HCID 178520828, compound

https://huagongshe.com/reaction/1076712

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant3-Amino-1-propanolHCID 9086—
Reactant3-Hydroxy-3-phenyl-1,3-dihydroindol-2-oneHCID 15806—
SolventO-XyleneHCID 7237—
ProductHCID 178520828HCID 178520828—

Reaction Steps

3-Phenyl-3-hydroxy-3H-indol-2-one (4.5 g.) was heated under reflux with 3-aminopropanol (6.0 g.) in xylene (100 ml.) and toluene-p-sulphonic acid (150 mg) in an apparatus fitted with a water separator. After 24 hours the reaction mixture was cooled. The product crystallised and was filtered off and recrystallised from methanol to give the title compound, 3.81 g., m.p. 215°-217°C. (Found C, 72.4; H, 6.7; N. 9.9, C17H18N2O2 requires C, 72.3; H, 6.4; N, 9.9%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03957819
Source datasetuspto-grants-1976_05
ORD IDord-564097dba93443b88aeeb8643f51b32a
Source noteuspto-grants-1976_05