posted on 2014-05-16, 00:00authored byHugo Lago-Santomé, Rubén Meana-Pañeda, Ricardo Alonso
A fully
stereocontrolled 1,3-diol orthoesterification and a water-promoted
intramolecular Henry addition, combined with the previously reported
formal (3 + 3) annulation of α-nitro-α,β-enals and
2,2-dimethyl-1,3-dioxan-5-one, provided for a short convergent pathway
to the dioxaadamantane core of (±)-tetrodotoxin.