Synthesis of linearly-fused benzodehydro[12]annulenes

This communication describes the preparation of the first linearly-fused be nzodehydro[12]annulene systems, which we have called acediynes. These stabl e antiaromatic materials exhibit absorption properties that closely resembl e the spectra of the corresponding acenes. (C) 2001 Elsevier Science Ltd. A ll rights reserved.