An iptycene is an aromatic compound composed of varying number of arene subunits bound to a bridged bicyclo-octatriene core structure. They are formally derivatives of barrelene. The first and simplest iptycene molecule is triptycene.[1]
The first iptycene was reported in 1931 by Erich Clar.[2]Paul Bartlett's research group developed Clar's method and made the first triptycene.[3] Following Bertlett's work on triptycene, Hart et al., with acknowledgement to Professor Joel F. Liebman, proposed the trivial name iptycene for this class of molecules.[4]
^Bartlett, Paul D.; Ryan, M. Josephine; Cohen, Saul G. (1942). "Triptycene (9,10-o-benzenoanthracene)". J. Am. Chem. Soc. 64 (11): 2649–2653. doi:10.1021/ja01263a035.
^Hart, Harold; Shamouilian, Shamouil; Takehira, Yoshikazu (1981). "Generalization of the triptycene concept. Use of diaryne equivalents in the synthesis of iptycenes". The Journal of Organic Chemistry. 46 (22): 4427–4432. doi:10.1021/jo00335a021. ISSN0022-3263.