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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249689Generated: October 26, 2026

5-Methylisatin → Oxindole

https://huagongshe.com/reaction/249689

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-MethylisatinHCID 11840—
Reactant4-[2-(4-Hydrazino-6-(morpholin-4-yl)-pyrimidin-2-yloxy)-ethyl]-morpholineHCID 58085731—
CatalystAcetic AcidHCID 176—
SolventEthanolHCID 702—
ProductOxindoleHCID 321710—

Reaction Conditions

Temperature60 °C

Reaction Steps

4-[2-(4-Hydrazino-6-(morpholin-4-yl)-pyrimidin-2-yloxy)-ethyl]-morpholine (80 mg; ¼ mmol) was added to a flask along with 5-methylisatin (53 mg; ⅓ mmol) and ethanol (4 mL). One drop of acetic acid was added, and the reaction was stirred overnight at 60° C. The mixture was then filtered and the precipitate was washed with ethanol (1 mL) and dried to give 5-methyl-3-{[6-morpholin-4-yl-2-(2-morpholin-4-yl-ethoxy)-pyrimidin-4-yl]-hydrazono)}-1,3-dihydro-indol-2-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07863270B2
Source datasetuspto-grants-2011_01
ORD IDord-80fbb6712d6c4bc482b20d03dde24791
Source noteuspto-grants-2011_01