(14) Boiling points are uncorrected., NMR spectra were recorded on a JEOL C-6OHL spectrometer at 60 MHz, and ir spectra with a Jasco IRA-I spec-trometer. GLC analysis were performed with a JEOL 20K gas chromato-graph on a 1-m Silicone SE-30 and/or Apiezon grease L column. Micro-analyses were carried out with a Perkin-Elmer 240 elemental analyzer.