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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 84338Generated: October 25, 2026

3-Ethylpyridine → 1-[4-(4-Butyl-phenyl)-but-3-ynyl]-3-ethyl-pyridinium bromide

https://huagongshe.com/reaction/84338

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-EthylpyridineHCID 10823—
Reactant1-(4-Bromo-but-1-ynyl)-4-butyl-benzeneHCID 59316350—
SolventAcetonitrileHCID 6342—
Product1-[4-(4-Butyl-phenyl)-but-3-ynyl]-3-ethyl-pyridinium bromideHCID 2478095067%

Reaction Steps

1-(4-Bromo-but-1-ynyl)-4-butyl-benzene (1 mmol) was added to a solution of 3-ethylpyridine (3 mmol) in acetonitrile, and the solution was refluxed for 24 hours. The acetonitrile was removed in vacuum, and the resulting residue was partitioned between ether and water. The aqueous layer was washed extensively with ether until no ethylpyridine was left in the aqueous layer. The resulting aqueous solution of the product was extracted with chloroform. The chloroform was removed to afford the product (67%). 1HNMR (300 MHz, CDCl3, ppm), 9.43 (d, J=6.0, 1H), 9.41 (s, 1H), 8.25 (d, J=8.1, 1H), 7.96 (dd, J=6.0, J=8.1, 1H), 7.15 (d, J=8.1, 2H), 7.06, d, J=8.1, 2H), 5.26 (t, J=6.0, 2H), 3.26 (t, J=6.0, 2H), 2.90 (q, J=7.5, 2H), 2.56 (t, J=8.1, 2H), 1.49-1.59 (m, 2H), 1.27-1.37 (m, 5H), 0.90 (t, J=7.2, 3H); 13CNMR, 144.65, 144.46, 144.14, 143.65, 142.45, 131.14, 128.30, 127.12, 118.87, 85.88, 82.45, 59.99, 35.45, 33.27, 26.01, 22.85, 22.21, 14.26, 13.88.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846937B2
Source datasetuspto-grants-2014_09
ORD IDord-ca9ed83b70d64b7f948288205fbd95fa
Source noteuspto-grants-2014_09