Unless otherwise noted, all the chemicals and reagents were obtained from commercial sources (J&K, TCI, Meryer or Sigma Aldrich). The solvents for reactions were distilled and degassed before use. All reactions were carried out in an N2 atmosphere with a dried Schlenk glassware or tube. 1 H and C nuclear magnetic resonance (NMR) spectra were measured using deuterated CDCl3 as solvent on a Bruker AV 500 spectrometer or a Bruker AVIII 400 spectrometer at room temperature. High-resolution mass spectra (HRMS) were obtained on a GCT premier CAB048 mass spectrometer. approximately 180 microns and a diameter over 2.5 cm were formed through rapidly cooling at room temperature.