“…Mo0(02)2-HMPA and other diperoxo-molybdenum-ligand complexes have been found to stoichiometrically oxidize alkenes to epoxides in good yields at room temperature in aprotic solvents. 167,179,[181][182][183][184][185] The epoxidation of alkenes is stereoselective; i.e., cis-alkenes are transformed into cis-epoxides and trans-alkenes into trans-epoxides.174,181…”