Withdrawn from Tetrahedron (4)

RETRACTED: Synthesis, Structure and some Reactions of a Multi-bridged Unsaturated Cyclooctadecane Derivative Formally Having Two Cycloheptatrienes In Press, Accepted Manuscript, Available online 22 June 2007 Shigeyasu Kuroda, Isao Hirano, Yanmei Zhang, Nguyen Chung Thanh and O.D.A. Mitsunori