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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2107035Generated: October 31, 2026

Hydrochloric Acid → 5-(2-chloroacetyl)-3,3-dimethyl-2,3-dihydro-1H-indol-2-one

https://huagongshe.com/reaction/2107035

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantChloroacetyl chlorideHCID 6577—
Reactant3,3-Dimethyl-1,3-dihydro-indol-2-oneHCID 313100—
ReactantAluminum(III) ChlorideHCID 6451240—
SolventDimethylformamideHCID 6228—
Product5-(2-chloroacetyl)-3,3-dimethyl-2,3-dihydro-1H-indol-2-oneHCID 10752379—

Reaction Conditions

Temperature70 °C

Reaction Steps

13.3 g aluminium chloride and 2.2 ml DMF were mixed and heated with stirring, at 70° C. during 15 min. After cooling to 40° C., 1.5 g 1,3-dihydro-3,3-dimethyl-2H-indol-2-one and 1.1 g 2-chloroacetyl chloride were added and stirred at 70° C. for 45 min. The mixture was poured onto 50 g ice and 10 ml 10N HCl and extracted with 3×75 ml ethyl acetate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04933336
Source datasetuspto-grants-1990_06
ORD IDord-264fb957ab7b49d5846a9d96469283e1
Source noteuspto-grants-1990_06