An Alternative Route to Protected Aldols: Cobalt-Catalyzed Hydroformylation of Epoxides and in situ Protection of β-Hydroxyaldehydes by HC(OMe)3 - Nakano, Koji; Katayama, Masaya; Ishihara, Shinjiro; Hiyama, Tamejiro; Nozaki, Kyoko (Synlett, 2004)