Synthesis and characterizations of meso-disubstituted asymmetric porphycenes

Masatsugu Taneda, Akihiro Tanaka, Hisashi Shimakoshi, Atsushi Ikegami, Koichi Hashimoto, Masaaki Abe, Yoshio Hisaeda

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    10 Citations (Scopus)


    A post-synthetic method has been developed to synthesize novel asymmetric porphycenes bearing two different substituents on the meso-positions. Nitration of 9-acetoxy-2,7,12,17-tetra-n-propylporphycene with AgNO3 in CH 3COOH/CH2Cl2 occurs regioselectively at the 19-position of the macrocycle to give 9-acetoxy-19-nitro-2,7,12,17-tetra-n- propylporphycene (3a) which was readily converted to 9-acetoxy-19-amino-2,7,12, 17-tetra-n-propylporphycene (4a) by the reduction with SnCl2 in pyridine.

    Original languageEnglish
    Pages (from-to)5727-5729
    Number of pages3
    JournalTetrahedron Letters
    Issue number42
    Publication statusPublished - Oct 16 2013

    All Science Journal Classification (ASJC) codes

    • Biochemistry
    • Drug Discovery
    • Organic Chemistry


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