N,N'-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminocobalt(II) (1
) catalyzes the reductive deoxygenation of epoxides by Na(Hg) in THF, with
5-10 catalytic turnovers. The simpler N,N'-bis(salicylidene)ethylenediamino
cobalt(II) [Co(Salen)(2)] (16) failed to catalyze deoygenations in THF but
did in DMF. (C) 1999 Elsevier Science Ltd. All rights reserved.