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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 596906Generated: October 30, 2026

Benzene → 1-Benzoyl-2-(methylsulfanyl)-1,2-dihydro-3H-indol-3-one

https://huagongshe.com/reaction/596906

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantTrifluoroacetic acidHCID 6422—
ReactantN-{2-[(Methanesulfinyl)acetyl]phenyl}benzamideHCID 21414519—
Product1-Benzoyl-2-(methylsulfanyl)-1,2-dihydro-3H-indol-3-oneHCID 2141452268.4%

Reaction Steps

2'-[(methylsulfinyl)-acetyl]benzanilide (7 g) is refluxed in benzene containing 1 equivalent of trifluoroacetic acid for 1 hour. The solvents are removed under reduced pressure to give an oil which crystallizes on standing. Recrystallization from ethyl acetate gives 1-benzoyl-2-(methylthio)-3-indolinone (4.5 g 67%) m.p. 126°-128° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04012422
Source datasetuspto-grants-1977_03
ORD IDord-1e471593b6b94fbea263196c39aad99c
Source noteuspto-grants-1977_03