An efficient, general synthetic protocol for the synthesis of the biologically active
benzofurans ailanthoidol, egonol and homoegonol was developed. The key starting material,
eugenol, is a naturally occurring and abundant precursor. The protocol, involving
sequential acylation and intramolecular Wittig reaction, provides a convenient method
for building the benzofuran moiety in good yield.
Key words
benzofurans - ailanthoidol - egonol - homoegonol - sustainable synthesis - total synthesis
- natural products