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. 2010 Nov 30;5(11):e14143. doi: 10.1371/journal.pone.0014143

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Kruewel et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Reagents and conditions: a) RBr, K₂CO₃, DMF, r.t, 8h; b) POCl₃/DMF, CHCl₃, reflux, 8h; c) Method A: 3-chloroaniline, ethanol, reflux, 4h (for 4); Method B: phenylethylamine, toluene, r.t.,48h (for 5).