Dpx 400 spectrometer

All reagents and dry solvents were purchased from commercial sources and used as received. 1 H, 13 C{ 1 H} and 19 F{ 1 H} NMR spectra were recorded on a Bruker DPX-400 spectrometer (400 MHz, 100 MHz, and 367.5 MHz, respectively) and a JEOL JMN-ECZ400S spectrometer (400 MHz and 100 MHz, respectively) in a deuterated solvent using TMS as an internal standard. For 19 F{ 1 H} NMR, the chemical shift of hexafluorobenzene (δ = -163.0 ppm in CDCl 3 ) was used as an external reference. The assignments of the 13 C{ 1 H} NMR were performed by DEPT experiments. In cases of 10Ar-DBAs 10, NMR spectra were measured using a mixture of diastereomer A and B (A/B = 51/49-56/44). Hence, integral values of 1 H NMR were shown using H A and H B , which were belonged to isomer A and B, respectively. Assignments of 13 C NMR were also shown using C A and C B , which were belonged to isomer A and B, respectively. IR spectra were recorded on a JASCO FT/IR-4200 spectrometer equipped with an ATM detector. High-resolution mass spectra were obtained on an AB SCEIX Triplet TOF 4600 mass spectrometer. Melting points were recorded on an SRS-Optimelt automated melting point system and were uncorrected. Microwave heating was performed by Anton-Paar Microwave 300 (850 W, 2455 MHz) using 10 mL glass vessel.