Concise Synthesis and Crystal Structure of [12]Cycloparaphenylene†
This work was supported by a Grant‐in‐Aid for Scientific Research from MEXT and JSPS. H.O. thanks the JSPS for predoctoral fellowship. S.M. and P.S. thank the MEXT Project of Integrated Research on Chemical Synthesis for postdoctoral fellowships. The computations were performed at the Research Center for Computational Science, Okazaki (Japan). We thank Prof. Yasuhiro Ohki for useful discussions and technical assistance.
Abstract
Crystal clear: The title macrocycle was constructed by a nickel‐mediated shotgun macrocyclization. The X‐ray crystallographic structure of [12]CPP revealed a circular structure incorporating two cyclohexane molecules within the ring. The [12]CPP molecules were also found to crystallize into tubular and herringbone structures.
