Alpha modular platinum atr ft ir spectrometer

We determined the melting points of the final products by a digital melting point apparatus (DigiMelt MPA 160 by SRS). Elemental (CHN) analyses were carried out by a PerkinElmer 2,400 Series II elemental analyzer, their results were found to be in good agreement (±0.5%) with the calculated values. Sonication was performed with the UP200St (200W, 26kHz) ultra-sonicator (Hielscher Ultrasonics GmbH, Germany). FT-IR spectra were recorded on a Bruker Alpha modular Platinum-ATR FT-IR spectrometer with OPUS software, using the samples directly (neat) without making pallets. ¹H NMR (600 MHz) and ¹³C NMR (150 MHz) spectra were obtained at room temperature with Bruker superconducting Ultrashield Plus 600 MHz NMR spectrometer with central field 14.09 T, coil inductance 89.1 Hz, and magnetic energy 1,127.2 kJ using CDCl₃ or d₆-DMSO as solvent. Chemicals were purchased from Sigma-Aldrich, Inc. (St. Louis, MO) and VWR International (Missouri, TX). Solvents were purchased from Fisher Scientific International Inc. (Pittsburgh, PA) throughout the investigation.

Melting points were determined in a Fisher Scientific electrochemical Mel-Temp* manual melting point apparatus (Model 1001) equipped with a 300ºC thermometer. FT-IR spectra were recorded on a Bruker Alpha modular Platinum-ATR FT-IR spectrometer with OPUS software, using the samples directly (neat) without making pallets. ¹H NMR (600 MHz) and ¹³C NMR (150 MHz) spectra were obtained at room temperature with Bruker superconducting Ultrashield Plus 600 MHz NMR spectrometer with central field 14.09 T, coil inductance 89.1 H, and magnetic energy 1127.2 kJ using CDCl₃ as solvent. All the solvents were purchased from Fisher-Scientific throughout the investigation. Dichloromethane and triethylamine were dried following the standard procedures. Deionized water was used for the preparation of all aqueous solutions.