The use of temporary tethers in the meta photocycloaddition reaction
作者:Clive S Penkett、Paul W Byrne、Barry J Teobald、Benedicte Rola、Aurelie Ozanne、Peter B Hitchcock
DOI:10.1016/j.tet.2004.01.065
日期:2004.3
facilitating meta photocycloaddition reactions between phenol and allyl alcohol derivatives has been investigated. The merits of silicon, carbonate and methylene acetal tethers were assessed, whilst considering strategies for the preparation of the natural products gymnomitrol and gelsemine. The photoadducts were epoxidised, and then subjected to acid catalysedfragmentation with concomitant cleavage of the