A structural isomer of nonaromatic porphyrin: Preparation of 20 pi-conjugated porphycene based on electronic perturbation

作者：Matsuo Takashi; Ito Kazuyuki; Kanehisa Nobuko; Hayashi Takashi^*

来源：Organic Letters, 2007, 9(25): 5303-5306.

DOI：10.1021/ol7025087

A porphycene having four CF3 groups at the beta-pyrrolic positions affords a stable 20 pi-conjugated form in the presence of a 2H(+)-2e(-) donor due to the high redox potential of the tetrapyrrole ring framework. No visible band in the UV-vis spectrum and the highly ruffled structure determined by X-ray crystallography support its nonaromatic character. The ethylene bridge moiety in the 20 pi-conjugated framework displayed the olefinic reactivities.

• 出版日期2007-12-6