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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1896040Generated: October 31, 2026

N-(3-Bromophenyl)acetamide → 3-{3-[1-(6-Methyl-3-nitropyridin-2-yl)piperidin-4-ylidene]prop-1-ynyl}phenylacetamide

https://huagongshe.com/reaction/1896040

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-(3-Bromophenyl)acetamideHCID 12123—
Reactant1-Butanaminium, N,N,N-tributyl-, fluoride, hydrateHCID 16211673—
Reactant4-(3-Trimethylsilylprop-2-ynylidene)piperidineHCID 57574982—
Reactant6-Methyl-3-Nitro-2-(4-prop-2-ynylidenepiperidin-1-yl)pyridineHCID 86627349—
Product3-{3-[1-(6-Methyl-3-nitropyridin-2-yl)piperidin-4-ylidene]prop-1-ynyl}phenylacetamideHCID 8662735354%

Reaction Steps

The title Compound was prepared from Compound 274c following the procedure described for the compound of Example 274 using 3-bromoacetanilide instead of 1-bromo-3,5-difluorobenzene and adding 1 molar equivalent of tetrabutylammonium fluoride monohydrate to the starting reaction mixture. After the work-up, the residue was purified by automated flash liquid chromatography (SP1™-Biotage) eluting with PE-EtOAc gradient from 7:3 to 4:6 affording the title product. Orange oil. Yield: 54%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518916B2
Source datasetuspto-grants-2013_08
ORD IDord-a6bae25e56dc48dda12a8f816d8348c1
Source noteuspto-grants-2013_08