Stereospecific Synthesis of Hetero [7] helicenes by Pd??Catalyzed Double N??Arylation and Intramolecular O??Arylation

K Nakano, Y Hidehira, K Takahashi…

Index: Nakano, Koji; Hidehira, Yuko; Takahashi, Keita; Hiyama, Tamejiro; Nozaki, Kyoko Angewandte Chemie - International Edition, 2005 , vol. 44, # 43 p. 7136 - 7138

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Citation Number: 97

Abstract

Helicenes consist of ortho-annulated aromatic and/or heteroaromatic rings endowed with a helical chirality.[1] Enantiopure helicenes can be isolated because of their stable and rigid helical conformation; furthermore, some of them form aggregates to give helical supramolecular architectures potentially applicable to nonlinear optics, electrooptic switches, and circularly polarized luminescent materials.[2] To expand the application of ...