All solvents and reagents were purchased from commercial sources and used without further purification. H NMR measurements were performed at 400 MHz and C NMR at 100 MHz on a Bruker Advance spectrometer. H and C NMR chemical shifts (δ) were reported in ppm from tetramethylsilane with the solvent resonance as the internal standard (CDCl3: δH 7.26 ppm and δC 77.00 ppm). Coupling constants (J) were given in Hz. Gas chromatography experiments (GC-MS-FID) were performed on a Shimazu GC system (GC-2010 Plus) equipped with a mass selective detector (QP 2020) and flame ionization detector and two parallel HP-5MS columns (30 m × 0.25 mm × 0.25 μm) with helium as a carrier gas. All compounds were purified by flash column chromatography with silica gel. Product yields were determined by isolation and by 1 H and C NMR spectroscopy using 1,3,5-trimethoxybenzene as internal standard.