Some reactions were performed under Argon atmosphere in acetone/water washed and dried galssware. Chromatography was carried out using thin layer chromatography (TLC) silica gel. NMR specta were recorded at room temperature in CDCl 3 on a Bruker® DRX400 spectrometer operating at 400 MHz for 1 H nuclei. Chemical shifts are reported in parts per million (ppm) from tetramethylsilane (δ = 0 ppm) and measured relatively to the solvent in which the sample was analysed (CDCl 3 δ = 7.26 ppm for 1 H NMR and δ = 77.16 ppm for 13 NMR). Coupling constants (J) are reported in Hertz (Hz). NMR data is reported as chemical shift in ppm, followed by multiplicity ("s" singlet, "d" doublet, "dd" doublet of doublet, "ddd" doublet of doublet of doublet, "t" triplet, "m" multiplet, "b" broad), coupling constant where applicable, relative integral. Peak signals reported in bold font do not correspond to our molecule (solvent, impurities, ...) . This synthesis as well as the NMR spectra were carried out in the organic chemistry laboratory of National Chemical Engineering Institute in Paris, Chimie ParisTech, PSL University, Paris, France.