Efficient total syntheses of (±)protolichesterinic acid and (±)rocellaric acid via tungsten-π-allyl complexes

Article abstract of DOI:10.1016/S0040-4039(98)02146-7

Total syntheses of racemic protolichesterinic acid (1) and rocellaric acid (2) were achieved with the use of tungsten-π-allyl complex in the key step. In this synthetic route, compounds 1 and 2 were prepared in four and six steps respectively starting from readily available chloropropargyl derivatives.