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Synthetic route to (aza)acenylene‐alkynylene dimers and trimers. i) TMSCCSnMe3 (5.00 equiv.), (C6H5CN)2PdCl2 (10 mol%), PtBu3HBF4 (20 mol%), THF, RT, 10 h; ii) K2CO3 (20.0 equiv.), THF/MeOH (1 : 1), RT, 1 h; iii) Cu(OAc)2 (22.0 equiv.), pyridine/MeOH (1 : 1), 60 °C, 24 h.
