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. 2024 Jan 18;20:101–117. doi: 10.3762/bjoc.20.11

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Copyright © 2024, Schlosser et al.

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Scheme 2 — Synthesis of styrylpyridine derivatives 2a–g. Conditions: i: piperidine, MeOH, reflux (2a,c), ii: Ca(OTf)₂, Bu₄NPF₆, 130 °C (2d,f), iii: N₂H₄·H₂O, Pd/C, MeOH, reflux (2b), iv: NaNO₂, CuCl, aq HCl (37%), room temp., 2 h, 60 °C, 30 min (2e), v: acetyl chloride, pyridine, THF, room temp. (2g).