Enantioselective synthesis of the hydroazulene core of 3α-hydroxy-15- rippertene

Article abstract of DOI:10.1002/ejoc.200700904

As part of a project directed toward the total synthesis of the tetracyclic diterpene 3α-hydroxy-15-rippertene, a constituent of the defense secretion of higher termites, a fast access to two advanced hydroazulene key intermediates has been achieved by st