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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1446827Generated: November 1, 2026

2-(2-Amino-3-benzoylphenyl)-2-(methylsulfanyl)acetamide → Nepafenac

https://huagongshe.com/reaction/1446827

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(2-Amino-3-benzoylphenyl)-2-(methylsulfanyl)acetamideHCID 15634727—
CatalystNickelHCID 935—
SolventTetrahydrofuranHCID 8028—
ProductNepafenacHCID 15107573.7%

Reaction Steps

To an agitated solution of 9.7 g (0.032 mole) of 2-amino-3-benzoyl-α-(methylthio)-phenylacetamide in 100 ml of tetrahydrofuran was added 80 g of wet Raney nickel (washed 3 times with water and 3 times with tetrahydrofuran). After 10 minutes the mixture was filtered to remove Raney nickel and the filtrate concentrated under vacuum. The residue was crystallized from isopropyl alcohol to give 6.0 g (73%) of yellow needles, m.p. 178.5°-180.0° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04313949
Source datasetuspto-grants-1982_02
ORD IDord-c56c8a33497240bf8015012682433431
Source noteuspto-grants-1982_02