Retro-1,4-cycloaddition of adducts derived from steroidal-5,7-dienes and 4-phenyl-1,2,4-triazoline-3,5-dione

Authors:
  • MTMasao Tada
    Masao Tada
  • AOAtsushi Oikawa
    Atsushi Oikawa
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Abstract
Heating at 120 °C of 1,4-cycloadducts of various steroidal-5,7-dienes and 4-phenyl-1,2,4-triazoline-3,5-dione with mineral base in an appropriate solvent gives the corresponding steroidal-5,7-dienes in high yields.