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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 441277Generated: October 30, 2026

Diketene → HCID 21419830, compound

https://huagongshe.com/reaction/441277

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiketeneHCID 12661—
ReactantN-(3-aminophenyl)pentanamideHCID 5138852—
SolventBenzeneHCID 241—
ProductHCID 21419830HCID 2141983024.6%

Reaction Conditions

Temperature20 °C

Reaction Steps

42 g of diketene were added to a mixture of 96 g of m-aminovaleranilide in 400 ml of benzene and the mixture was stirred for 16 hours at 20° C. The benzene was decanted and the residue was added to refluxing benzene. The mixture was treated with activated carbon and filtered to obtain raw m-valeramido-acetylacetanilide melting at 90° C. Crystallization from ethyl acetate yielded 34 g of pure m-valeramido-acetylacetanilide melting at 116° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04039316
Source datasetuspto-grants-1977_08
ORD IDord-8d826342c94249ddbeca380895b4516c
Source noteuspto-grants-1977_08