Selective 1, 4-reduction of α, β-unsaturated carbonyl compounds by combined use of bis (1, 3-diketonato) cobalt (II) complex and diisobutylaluminum hydride
Abstract: By the combined use of Co (acac) 2 with DIBAL, various a, b-unsaturated carbonyl compounds such as enones, a, b-unsaturated carboxylates and carboxamides were selectively reduced in a 1, 4-manner to obtain the corresponding 1, 4-reduced products in good-to-high yields. Key words: 1, 4-reduction, diisobutylaluminum hydride, cobalt hydride, bis (acetylacetonato) cobalt (II) complex, α, β-unsaturated carbonyl compound